AIPMT 2005 · Biology

AIPMT 2005 Biology Questions with Solutions

The AIPMT 2005 paper had 101 Biology questions from 21 chapters. By section: 65 Botany and 36 Zoology.

Principles of Inheritance and Variation had the most questions (14), followed by Photosynthesis in Higher Plants with 10.

All 101 questions are listed below; their answers and explanations are in Premium.

Practise AIPMT 2005 Biology free

Biology questions: 101
Chapters covered: 21
Solved free here: 0 of 101
Easy / Medium / Hard: 42 / 50 / 9

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Chapter-wise: AIPMT 2005 Biology

How many questions each chapter had in AIPMT 2005. Open a chapter for its questions from every year.

All 101 AIPMT 2005 Biology questions

In paper order. Try each one, then open the answer.

Question 1 (AIPMT 2005, Q59)
Cell: The Unit of LifeBotanyEasy
The cell membranes are mainly composed of:
1. Option A: carbohydrates
2. Option B: proteins
3. Option C: phospholipids
4. Option D: fats
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Question 2 (AIPMT 2005, Q101)
Cell: The Unit of LifeBotanyEasy
The main organelle involved in modification and routing of newly synthesized proteins to their destinations is:
1. Option A: Mitochondria
2. Option B: Endoplasmic reticulum
3. Option C: Lysosome
4. Option D: chloroplast
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Question 3 (AIPMT 2005, Q102)
Principles of Inheritance and VariationBotanyMedium
There are two opposing views about the origin of modern man. According to one view, Homo erectus in Asia was the ancestor of modern man. A study of variations of DNA however suggested African origin of modern man. What kind of observation on DNA variation could suggest this?
1. Option A: Greater variation in Africa than in Asia
2. Option B: Variation only in Asia and no variation in Africa
3. Option C: Greater variation in Asia than in Africa
4. Option D: Similar variation in Africa and Asia
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Question 4 (AIPMT 2005, Q103)
Microbes in Human WelfareBotanyEasy
The world's highly prized wool yielding 'Pashmina' breed is:
1. Option A: Sheep
2. Option B: Goat
3. Option C: Goat-sheep cross
4. Option D: Kashmiri sheep-Afghan sheep cross
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Question 5 (AIPMT 2005, Q104)
Human ReproductionZoologyMedium
Grey crescent is the area:
1. Option A: At the point of entry of sperm into ovum
2. Option B: Just opposite to the site of entry of sperm into ovum
3. Option C: At the animal pole
4. Option D: At the vegetal pole
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Question 6 (AIPMT 2005, Q105)
Photosynthesis in Higher PlantsBotanyMedium
Photosynthesis in C4 plants is relatively less limited by atmospheric CO $_2$ levels because:
1. Option A: Four carbon acids are the primary initial CO $_2$ fixation products
2. Option B: The primary fixation of CO $_2$ is mediated via PEP carboxylase
3. Option C: Effective pumping of CO $_2$ into bundle sheath cells
4. Option D: RuBisCO in C4 plants has higher affinity for CO $_2$
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Question 7 (AIPMT 2005, Q106)
Cell Cycle and Cell DivisionBotanyEasy
At what stage of the cell cycle are histone proteins synthesized in a eukaryotic cell?
1. Option A: During entire prophase
2. Option B: During telophase
3. Option C: During S-phase
4. Option D: During G2 stage of prophase
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Question 8 (AIPMT 2005, Q107)
The Living WorldBotanyEasy
There exists a close association between the alga and the fungus within a lichen. The fungus:
1. Option A: Fixes the atmospheric nitrogen for the alga
2. Option B: Provides protection, anchorage and absorption for the alga
3. Option C: Provides food for the alga
4. Option D: Releases oxygen for the alga
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Question 9 (AIPMT 2005, Q108)
Microbes in Human WelfareBotanyMedium
For retting of jute, the fermenting microbe used is:
1. Option A: Helicobacter pylori
2. Option B: Methophilic bacteria
3. Option C: Streptococcus lactin
4. Option D: Butyric acid bacteria
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Question 10 (AIPMT 2005, Q109)
Cell: The Unit of LifeBotanyMedium
A student wishes to study the cell structure under a light microscope having $10\times$ eyepiece and $45\times$ objective. He should illuminate the object by which one of the following colours of light so as to get the best possible resolution?
1. Option A: Yellow
2. Option B: Green
3. Option C: Blue
4. Option D: Red
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Question 11 (AIPMT 2005, Q110)
Excretory Products and Their EliminationZoologyMedium
The net pressure gradient that causes the fluid to filter out of the glomeruli into the capsule is:
1. Option A: 20 mm Hg
2. Option B: 75 mm Hg
3. Option C: 30 mm Hg
4. Option D: 50 mm Hg
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Question 12 (AIPMT 2005, Q111)
EcosystemBotanyMedium
At which latitude does heat gain through insolation approximately equal heat loss through terrestrial radiation?
1. Option A: $66^\circ$ North and South
2. Option B: $22\frac{1}{2}^\circ$ North and South
3. Option C: $40^\circ$ North and South
4. Option D: $42\frac{1}{2}^\circ$ North and South
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Question 13 (AIPMT 2005, Q112)
Principles of Inheritance and VariationBotanyHard
A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughters and 5 sons). Three of the sons suffer from the given disease but none of the daughters are affected. Which of the following mode of inheritance do you suggest for this disease?
1. Option A: Autosomal dominant
2. Option B: Sex-linked dominant
3. Option C: Sex-limited recessive
4. Option D: Sex-linked recessive
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Question 14 (AIPMT 2005, Q113)
Excretory Products and Their EliminationZoologyMedium
In Ornithine cycle, which of the following wastes are removed from the blood ?
1. Option A: Urea and urine
2. Option B: Ammonia and urea
3. Option C: CO $_2$ and ammonia
4. Option D: CO $_2$ and urea
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Question 15 (AIPMT 2005, Q114)
Principles of Inheritance and VariationBotanyMedium
Telomerase is an enzyme which is a:
1. Option A: Repetitive DNA
2. Option B: RNA
3. Option C: Simple protein
4. Option D: Ribonucleoprotein
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Question 16 (AIPMT 2005, Q115)
Molecular Basis of InheritanceBotanyMedium
During transcription holoenzyme RNA polymerase binds to a DNA sequence and the DNA assumes a saddle-like structure at that point. What is that sequence called?
1. Option A: CAAT box
2. Option B: GGTT box
3. Option C: AAAT box
4. Option D: TATA box
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Question 17 (AIPMT 2005, Q116)
Cell Cycle and Cell DivisionBotanyEasy
Centromere is required for:
1. Option A: Transcription
2. Option B: Crossing over
3. Option C: Cytoplasmic cleavage
4. Option D: Movement of chromosomes towards poles
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Question 18 (AIPMT 2005, Q117)
Human Health and DiseaseZoologyMedium
Damage to thymus in a child may lead to:
1. Option A: A reduction in haemoglobin content of blood
2. Option B: A reduction in stem cell production
3. Option C: Loss of antibody mediated immunity
4. Option D: Loss of cell mediated immunity
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Question 19 (AIPMT 2005, Q118)
EcosystemBotanyEasy
Prolonged liberal irrigation of agricultural fields is likely to create the problem of:
1. Option A: Acidity
2. Option B: Aridity
3. Option C: Metal toxicity
4. Option D: Salinity
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Question 20 (AIPMT 2005, Q119)
Cell: The Unit of LifeBotanyEasy
Chlorophyll in chloroplasts is located in:
1. Option A: Grana
2. Option B: Pyrenoid
3. Option C: Stroma
4. Option D: Both (1) and (3)
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Question 21 (AIPMT 2005, Q120)
Microbes in Human WelfareBotanyEasy
Three crops that contribute maximum to global food grain production are:
1. Option A: Wheat, rice and maize
2. Option B: Wheat, maize and sorghum
3. Option C: Rice, maize and sorghum
4. Option D: Wheat, rice and barley
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Question 22 (AIPMT 2005, Q121)
Principles of Inheritance and VariationBotanyMedium
Genes for cytoplasmic male sterility in plants are generally located in:
1. Option A: Mitochondrial genome
2. Option B: Cytosol
3. Option C: Chloroplast genome
4. Option D: Nuclear genome
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Question 23 (AIPMT 2005, Q122)
Principles of Inheritance and VariationBotanyMedium
Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain?
1. Option A: Lipase
2. Option B: Exonuclease
3. Option C: Endonuclease
4. Option D: Protease
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Question 24 (AIPMT 2005, Q123)
The Living WorldBotanyMedium
Match items in Column-I with those in Column-II and select the correct answer.
1. Option A: A-2, B-1, C-3, D-4, E-5
2. Option B: A-5, B-3, C-2, D-5, E-1
3. Option C: A-1, B-2, C-5, D-3, E-2
4. Option D: A-3, B-1, C-4, D-5, E-2
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Question 25 (AIPMT 2005, Q124)
Microbes in Human WelfareBotanyEasy
The name of Norman Borlaug is associated with:
1. Option A: Green revolution
2. Option B: Yellow revolution
3. Option C: White revolution
4. Option D: Blue revolution
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Question 26 (AIPMT 2005, Q125)
Body Fluids and CirculationZoologyMedium
G-6-P dehydrogenase deficiency is associated with haemolysis of:
1. Option A: Lymphocytes
2. Option B: RBCs
3. Option C: Platelets
4. Option D: Leucocytes
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Question 27 (AIPMT 2005, Q126)
Sexual Reproduction in Flowering PlantsBotanyEasy
In which one pair both the plants can be vegetatively propagated by leaf pieces?
1. Option A: Bryophyllum and Kalanchoe
2. Option B: Chrysanthemum and Agave
3. Option C: Agave and Kalanchoe
4. Option D: Asparagus and Bryophyllum
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Question 28 (AIPMT 2005, Q127)
Biodiversity and ConservationBotanyMedium
According to IUCN Red List what is the status of red panda (Ailurus fulgens)?
1. Option A: Vulnerable species
2. Option B: Critically endangered species
3. Option C: Extinct species
4. Option D: Endangered species
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Question 29 (AIPMT 2005, Q128)
Body Fluids and CirculationZoologyMedium
Which of the following substances, if introduced in the blood stream, would cause coagulation at the site of its introduction?
1. Option A: Fibrinogen
2. Option B: Prothrombin
3. Option C: Heparin
4. Option D: Thromboplastin
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Question 30 (AIPMT 2005, Q129)
Molecular Basis of InheritanceBotanyHard
E. coli cells with a mutated Z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because:
1. Option A: In the presence of glucose, E. coli cells do not utilize lactose
2. Option B: They cannot transport lactose from the medium into the cell
3. Option C: The lac operon is constitutively active in these cells
4. Option D: They cannot synthesize functional β-galactosidase
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Question 31 (AIPMT 2005, Q130)
The Living WorldBotanyMedium
Top-shaped multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons are characteristic features of:
1. Option A: Polypetalous angiosperms
2. Option B: Gamopetalous angiosperms
3. Option C: Conifers
4. Option D: Cycads
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Question 32 (AIPMT 2005, Q131)
Biotechnology: Principles and ProcessesZoologyMedium
Production of a human protein in bacteria by genetic engineering is possible because:
1. Option A: bacterial cell can carry out the RNA splicing reactions
2. Option B: the human chromosome can replicate in bacterial cell
3. Option C: the mechanism of gene regulation is identical in humans and bacteria
4. Option D: the genetic code is universal
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Question 33 (AIPMT 2005, Q132)
The Living WorldBotanyMedium
From the following statements select the wrong one:
1. Option A: millipedes have two pairs of appendages in each segment of the body
2. Option B: prawn has two pairs of antennae
3. Option C: animals belonging to phylum Porifera are exclusively marine
4. Option D: nematocysts are characteristic of the phylum Cnidaria
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Question 34 (AIPMT 2005, Q133)
BiomoleculesZoologyEasy
Nucleotide are building blocks of nucleic acids, nucleotide is a composite molecule formed by:
1. Option A: (base-sugar-phosphate) $_n$
2. Option B: base-sugar-OH
3. Option C: base-sugar-phosphate
4. Option D: sugar-phosphate
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Question 35 (AIPMT 2005, Q134)
EcosystemBotanyEasy
More than 70% of world's freshwater is contained in:
1. Option A: Antarctica
2. Option B: Glaciers and Mountains
3. Option C: Greenland
4. Option D: Polar ice
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Question 36 (AIPMT 2005, Q135)
EcosystemBotanyEasy
Which one of the following pairs is mismatched?
1. Option A: Biomass burning — release of CO $_2$
2. Option B: Fossil fuel burning — release of CO $_2$
3. Option C: Nuclear power — radioactive wastes
4. Option D: Solar energy — green house effect
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Question 37 (AIPMT 2005, Q136)
Structural Organisation in AnimalsZoologyMedium
Which one of the following characters is not typical of the class Mammalia?
1. Option A: Seven cervical vertebrae
2. Option B: Thecodont dentition
3. Option C: Ten pairs of cranial nerves
4. Option D: Alveolar lungs
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Question 38 (AIPMT 2005, Q137)
BiomoleculesZoologyEasy
Which of the following is the simplest amino acid?
1. Option A: Tyrosine
2. Option B: Asparagine
3. Option C: Glycine
4. Option D: Alanine
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Question 39 (AIPMT 2005, Q138)
Microbes in Human WelfareBotanyMedium
Barophilic prokaryotes:
1. Option A: grow slowly in highly alkaline frozen lakes at high altitudes
2. Option B: occur in water containing high concentrations of barium hydroxide
3. Option C: grow and multiply in very deep marine sediments
4. Option D: readily grow and divides in sea water enriched in any soluble salt of barium
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Question 40 (AIPMT 2005, Q139)
Photosynthesis in Higher PlantsBotanyHard
Auxospores and hormocysts are formed, respectively, by:
1. Option A: several diatoms and a few cyanobacteria
2. Option B: several cyanobacteria and several diatoms
3. Option C: some diatoms and several cyanobacteria
4. Option D: some cyanobacteria and many diatoms
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Question 41 (AIPMT 2005, Q140)
BiomoleculesZoologyEasy
Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these:
1. Option A: enhance oxidative metabolism
2. Option B: are conjugated proteins
3. Option C: are exclusively synthesized in the body of a living organism as at present
4. Option D: help in regulating metabolism
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Question 42 (AIPMT 2005, Q141)
EvolutionZoologyMedium
Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution?
1. Option A: Development of transgenic animals
2. Option B: Production of 'Dolly' the sheep by cloning
3. Option C: Prevalence of pesticide resistant insects
4. Option D: Development of organs from stem cells for organ transplantation
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Question 43 (AIPMT 2005, Q142)
Photosynthesis in Higher PlantsBotanyHard
As compared to a C $_3$ plant, how many additional molecules of ATP are needed for net production of one molecule of hexose sugar by C $_4$ plants?
1. Option A: 2
2. Option B: 6
3. Option C: 0
4. Option D: 12
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Question 44 (AIPMT 2005, Q143)
Neural Control and CoordinationZoologyMedium
In a man, abducens nerve is injured. Which one of the following functions will be affected?
1. Option A: Movement of the eye ball
2. Option B: Swallowing
3. Option C: Movement of the tongue
4. Option D: Movement of the neck
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Question 45 (AIPMT 2005, Q144)
Microbes in Human WelfareBotanyMedium
An important step in the manufacture of pulp for paper industry from the woody tissues of plants is the:
1. Option A: preparation of pure cellulose by removing lignin
2. Option B: removal of oils present in the wood by treatment with suitable chemicals
3. Option C: removal of water from the wood by prolonged heating at approximately 50 $^{\circ}$ C
4. Option D: treatment of wood with chemical that breakdown cellulose
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Question 46 (AIPMT 2005, Q145)
Molecular Basis of InheritanceBotanyEasy
Protein synthesis in an animal cell occurs:
1. Option A: only on the ribosomes present in cytosol
2. Option B: on ribosomes present in cytoplasm as well as in mitochondria
3. Option C: only on ribosomes attached to the nuclear envelope and endoplasmic reticulum
4. Option D: on ribosomes present in the nucleolus as well as in cytoplasm
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Question 47 (AIPMT 2005, Q146)
Principles of Inheritance and VariationBotanyEasy
Which of the following is not true for a species?
1. Option A: Members of a species can interbreed
2. Option B: Variations occur among members of a species
3. Option C: Each species is reproductively isolated from every other species
4. Option D: Gene flow does not occur between the populations of a species
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Question 48 (AIPMT 2005, Q147)
Biodiversity and ConservationBotanyEasy
One of the most important functions of botanical gardens is that:
1. Option A: one can observe tropical plants there
2. Option B: they allow ex situ conservation of germplasm
3. Option C: they provide the natural habitat for wildlife
4. Option D: they provide a beautiful area for recreation
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Question 49 (AIPMT 2005, Q148)
Photosynthesis in Higher PlantsBotanyMedium
The ability of the Venus flytrap to capture insects is due to:
1. Option A: chemical stimulation by the prey
2. Option B: a passive process requiring no special ability on the part of the plant
3. Option C: specialized 'muscle-like' cells
4. Option D: rapid turgor pressure changes
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Question 50 (AIPMT 2005, Q149)
EcosystemBotanyMedium
Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example:
1. Option A: enlargement of body size by swallowing air in puffer fish
2. Option B: melanism in moths
3. Option C: poison fangs in snakes
4. Option D: colour change in chameleon
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Question 51 (AIPMT 2005, Q150)
EvolutionZoologyMedium
At a particular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibrium?
1. Option A: 0.16
2. Option B: 0.48
3. Option C: 0.36
4. Option D: 0.24
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Question 52 (AIPMT 2005, Q151)
EvolutionZoologyMedium
Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from non-living matter?
1. Option A: Microbes did not appear in stored meat
2. Option B: Larvae could appear in decaying organic matter
3. Option C: Microbes appeared from unsterilized organic matter
4. Option D: Meat was not spoiled, when heated and kept sealed in a vessel
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Question 53 (AIPMT 2005, Q152)
Biodiversity and ConservationBotanyEasy
Biodiversity Act of India was passed by the Parliament in the year:
1. Option A: 1996
2. Option B: 1992
3. Option C: 2002
4. Option D: 2000
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Question 54 (AIPMT 2005, Q153)
Photosynthesis in Higher PlantsBotanyMedium
During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP?
1. Option A: Conversion of pyruvic acid to acetyl Co-A
2. Option B: Electron transport chain
3. Option C: Glycolysis
4. Option D: Krebs cycle
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Question 55 (AIPMT 2005, Q154)
Principles of Inheritance and VariationBotanyHard
A woman with normal vision, but whose father was colour blind, marries a colourblind man. Suppose that the fourth child of this couple was a boy. This boy:
1. Option A: must have normal colour vision
2. Option B: will be partially colourblind since he is heterozygous for the colourblind mutant allele
3. Option C: must be colourblind
4. Option D: may be colourblind or may be of normal vision
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Question 56 (AIPMT 2005, Q155)
The Living WorldBotanyHard
Ectophloic siphonostele is found in:
1. Option A: Adiantum and Cucurbitaceae
2. Option B: Osmunda and Equisetum
3. Option C: Marsilea and Botrychium
4. Option D: Dicksonia and maiden hair fern
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Question 57 (AIPMT 2005, Q156)
Human ReproductionZoologyEasy
Which of the following represents the edible part of the fruit of litchi?
1. Option A: Pericarp
2. Option B: Mesocarp
3. Option C: Juicy aril
4. Option D: Endocarp
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Question 58 (AIPMT 2005, Q157)
Photosynthesis in Higher PlantsBotanyMedium
Carbohydrates, the most abundant biomolecules on earth, are produced by:
1. Option A: all bacteria, fungi and algae
2. Option B: fungi, algae and green plant cells
3. Option C: some bacteria, algae and green plant cells
4. Option D: viruses, fungi and bacteria
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Question 59 (AIPMT 2005, Q158)
EcosystemBotanyMedium
Identify the correctly matched pair:
1. Option A: Montreal protocol - Global warming
2. Option B: Kyoto protocol - Climatic change
3. Option C: Ramsar convention - Ground water pollution
4. Option D: Basal convention - Biodiversity conservation
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Question 60 (AIPMT 2005, Q159)
Principles of Inheritance and VariationBotanyEasy
Which of the following is not a hereditary disease?
1. Option A: Cretinism
2. Option B: Cystic fibrosis
3. Option C: Thalassaemia
4. Option D: Haemophilia
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Question 61 (AIPMT 2005, Q160)
Photosynthesis in Higher PlantsBotanyHard
The deficiencies of micro-nutrients not only affects growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both photosynthetic and mitochondrial electron transport?
1. Option A: Cu, Mn, Fe
2. Option B: Co, Ni, Mo
3. Option C: Mn, Co, Ca
4. Option D: Ca, X, Na
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Question 62 (AIPMT 2005, Q161)
EvolutionZoologyEasy
de Vries gave his mutation theory on organic evolution while working on:
1. Option A: Althea rosea
2. Option B: Drosophila melanogaster
3. Option C: Oenothera lamarckiana
4. Option D: Pisum sativum
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Question 63 (AIPMT 2005, Q162)
Neural Control and CoordinationZoologyEasy
One of the examples of the action of the autonomous nervous system is:
1. Option A: knee-jerk response
2. Option B: pupillary reflex
3. Option C: swallowing of food
4. Option D: peristalsis of the intestines
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Question 64 (AIPMT 2005, Q163)
Microbes in Human WelfareBotanyEasy
Which of the following is not used for disinfection of drinking water?
1. Option A: Phenyl
2. Option B: Chloramine
3. Option C: Chlorine
4. Option D: Ozone
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Question 65 (AIPMT 2005, Q164)
Photosynthesis in Higher PlantsBotanyMedium
Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on:
1. Option A: proton gradient
2. Option B: accumulation of K ions
3. Option C: accumulation of Na ions
4. Option D: membrane potential
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Question 66 (AIPMT 2005, Q165)
Chemical Coordination and IntegrationZoologyMedium
Parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter:
1. Option A: acetylcholine
2. Option B: norepinephrine
3. Option C: dopamine
4. Option D: GABA
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Question 67 (AIPMT 2005, Q166)
Microbes in Human WelfareBotanyHard
All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct except that Frankia:
1. Option A: can induce root nodules on many plant species
2. Option B: can fix nitrogen in the free-living state
3. Option C: like Rhizobium, it usually infects its host plant through root hair deformation and stimulates cell proliferation in the host's cortex
4. Option D: forms specialized vesicles in which the nitrogenase is protected from oxygen by a chemical barrier involving triterpene hopanoids
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Question 68 (AIPMT 2005, Q167)
Structural Organisation in AnimalsZoologyEasy
An acromian process is characteristically found in the:
1. Option A: pelvic girdle of mammals
2. Option B: skull of frog
3. Option C: pectoral girdle of mammals
4. Option D: sperm of mammals
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Question 69 (AIPMT 2005, Q168)
Sexual Reproduction in Flowering PlantsBotanyMedium
In a type of apomixis known as adventive embryony, embryos develop directly from the:
1. Option A: nucellus or integuments
2. Option B: synergids or antipodals in an embryo sac
3. Option C: accessory embryo sacs in the ovule
4. Option D: zygote
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Question 70 (AIPMT 2005, Q169)
Sexual Reproduction in Flowering PlantsBotanyMedium
Through which cell of the embryo sac does the pollen tube enter the embryo sac?
1. Option A: Egg cell
2. Option B: Central cell
3. Option C: Persistent synergid
4. Option D: Degenerated synergid
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Question 71 (AIPMT 2005, Q170)
Structural Organisation in AnimalsZoologyEasy
Epithelial cells of the intestine involved in food absorption have on their surface:
1. Option A: pinocytic vesicles
2. Option B: phagocytic vesicles
3. Option C: zymogen granules
4. Option D: micro-villi
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Question 72 (AIPMT 2005, Q171)
Body Fluids and CirculationZoologyEasy
A patient is generally advised to specially consume more meat, lentils, milk and eggs in diet only when he suffers from:
1. Option A: kwashiorkor
2. Option B: rickets
3. Option C: anaemia
4. Option D: scurvy
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Question 73 (AIPMT 2005, Q172)
EcosystemBotanyEasy
Which one of the following pairs is mismatched?
1. Option A: Savanna — Acacia trees
2. Option B: Prairie — epiphytes
3. Option C: Tundra — permafrost
4. Option D: Coniferous forest — evergreen trees
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Question 74 (AIPMT 2005, Q173)
Principles of Inheritance and VariationBotanyMedium
Which of the following is the relatively most accurate method for dating of fossils?
1. Option A: Potassium - argon method
2. Option B: Uranium - lead method
3. Option C: Electron - spin resonance method
4. Option D: Radio - carbon method
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Question 75 (AIPMT 2005, Q174)
Sexual Reproduction in Flowering PlantsBotanyMedium
Which one of the following represents an ovule, where the embryo sac becomes horse-shoe shaped and the funiculus and micropyle are close to each other?
1. Option A: Circinotropous
2. Option B: Anatropous
3. Option C: Amphitropous
4. Option D: Atropous
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Question 76 (AIPMT 2005, Q175)
Photosynthesis in Higher PlantsBotanyMedium
Potometer works on the principle of:
1. Option A: amount of water absorbed equals the amount transpired
2. Option B: osmotic pressure
3. Option C: root pressure
4. Option D: potential difference between the tip of the tube and that of the plant
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Question 77 (AIPMT 2005, Q176)
Structural Organisation in AnimalsZoologyMedium
In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues?
1. Option A: Stem and root
2. Option B: All parts
3. Option C: Shoot tips and root tips
4. Option D: Flowers, fruits and leaves
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Question 78 (AIPMT 2005, Q177)
Biotechnology: Principles and ProcessesZoologyEasy
Which one of the following makes use of RNA as a template to synthesize DNA?
1. Option A: Reverse transcriptase
2. Option B: DNA dependent RNA polymerase
3. Option C: DNA polymerase
4. Option D: RNA polymerase
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Question 79 (AIPMT 2005, Q178)
The Living WorldBotanyMedium
In contrast to annelids the platyhelminths show:
1. Option A: radial symmetry
2. Option B: presence of pseudocoel
3. Option C: bilateral symmetry
4. Option D: absence of body cavity
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Question 80 (AIPMT 2005, Q179)
BiomoleculesZoologyMedium
Which of the following statements regarding enzyme inhibition is correct?
1. Option A: Non-competitive inhibition of an enzyme can be overcome by adding large amount of substrate
2. Option B: Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor protein
3. Option C: Competitive inhibition is seen when the substrate and the inhibitor compete
4. Option D: Non-competitive inhibitors often bind to the enzyme irreversibly
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Question 81 (AIPMT 2005, Q180)
Structural Organisation in AnimalsZoologyEasy
Which of the following pairs is correctly matched?
1. Option A: Cartilaginous joint — skull bones
2. Option B: Hinge joint — between vertebrae
3. Option C: Fibrous joint — between phalanges
4. Option D: Gliding joint — between zygapophyses of the successive vertebrae
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Question 82 (AIPMT 2005, Q181)
BiomoleculesZoologyMedium
The catalytic efficiency of two different enzymes can be compared by the:
1. Option A: the Km value
2. Option B: the pH optimum value
3. Option C: formation of the product
4. Option D: molecular size of the enzyme
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Question 83 (AIPMT 2005, Q182)
Principles of Inheritance and VariationBotanyMedium
Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originate as adaptation. These imprints need to be used:
1. Option A: only on plates with streptomycin
2. Option B: on plates with minimal medium
3. Option C: only on plates without streptomycin
4. Option D: on plates with and without streptomycin
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Question 84 (AIPMT 2005, Q183)
Biotechnology and Its ApplicationsZoologyEasy
Which of the following is generally used for induced mutagenesis in crop plants?
1. Option A: Alpha particles
2. Option B: X-rays
3. Option C: UV (260 nm)
4. Option D: Gamma rays (from cobalt 60)
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Question 85 (AIPMT 2005, Q184)
Principles of Inheritance and VariationBotanyEasy
Haemophilia is more commonly seen in human males than in human females because:
1. Option A: this disease is due to an X-linked dominant mutation
2. Option B: a greater proportion of girls die in infancy
3. Option C: this disease is due to an X-linked recessive mutation
4. Option D: this disease is due to a Y-linked recessive mutation
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Question 86 (AIPMT 2005, Q185)
Principles of Inheritance and VariationBotanyEasy
A woman with 47 chromosomes due to three copies of chromosome 21 is characterized by:
1. Option A: Down syndrome
2. Option B: triploidy
3. Option C: Turner syndrome
4. Option D: super femaleness
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Question 87 (AIPMT 2005, Q186)
Principles of Inheritance and VariationBotanyMedium
In order to find out the different types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a plant with the genotype:
1. Option A: aaBB
2. Option B: AaBB
3. Option C: AABB
4. Option D: aabb
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Question 88 (AIPMT 2005, Q187)
Cell Cycle and Cell DivisionBotanyMedium
Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following. Which of the cells are least likely to be replaced by new cells?
1. Option A: Osteocytes
2. Option B: Malpighian layer of the skin
3. Option C: Liver cells
4. Option D: Neurons
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Question 89 (AIPMT 2005, Q188)
Body Fluids and CirculationZoologyEasy
Secretin and cholecystokinin are digestive hormones. They are secreted in:
1. Option A: oesophagus
2. Option B: ileum
3. Option C: duodenum
4. Option D: pyloric stomach
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Question 90 (AIPMT 2005, Q189)
The Living WorldBotanyEasy
Which of the following unicellular organism has a macro-nucleus for trophic function and one or more micro-nuclei for reproduction?
1. Option A: Euglena
2. Option B: Amoeba
3. Option C: Paramecium
4. Option D: Trypanosoma
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Question 91 (AIPMT 2005, Q190)
Human Health and DiseaseZoologyEasy
AIDS is caused by HIV that principally infects:
1. Option A: all lymphocytes
2. Option B: activator B cells
3. Option C: T4 lymphocytes
4. Option D: cytotoxic T cells
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Question 92 (AIPMT 2005, Q191)
Cell: The Unit of LifeBotanyMedium
According to widely accepted 'fluid mosaic model' cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect?
1. Option A: Proteins in cell membranes can travel within the lipid bilayer
2. Option B: Proteins can remain confined within certain domains of the membrane
3. Option C: Proteins can also undergo flip-flop movements in the lipid bilayer
4. Option D: Many proteins remain completely embedded within the lipid bilayer
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Question 93 (AIPMT 2005, Q192)
Human ReproductionZoologyMedium
If mammalian ovum fails to get fertilized, which one of the following is unlikely?
1. Option A: Corpus luteum will disintegrate
2. Option B: Estrogen secretion further decreases
3. Option C: Primary follicle starts developing
4. Option D: Progesterone secretion rapidly declines
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Question 94 (AIPMT 2005, Q193)
Body Fluids and CirculationZoologyEasy
A person is undergoing prolonged fasting. His urine will be found to contain abnormal quantities of:
1. Option A: fats
2. Option B: ketones
3. Option C: amino acids
4. Option D: glucose
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Question 95 (AIPMT 2005, Q194)
Sexual Reproduction in Flowering PlantsBotanyMedium
Why is vivipary an undesirable character for annual crop plants?
1. Option A: It reduces the vigour of plant
2. Option B: The seeds cannot be stored under normal conditions for the next season
3. Option C: The seeds exhibit long dormancy
4. Option D: It adversely affects the fertility of the plant
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Question 96 (AIPMT 2005, Q195)
Biotechnology and Its ApplicationsZoologyEasy
Bacillus thuringiensis (Bt) strains have been used for designing novel:
1. Option A: bio-metallurgical technique
2. Option B: bio-mineralization processes
3. Option C: bio-insecticidal plants
4. Option D: bio-fertilizers
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Question 97 (AIPMT 2005, Q196)
Principles of Inheritance and VariationBotanyMedium
The salivary gland chromosomes in the dipteran larvae are useful in gene mapping because:
1. Option A: these are much longer in size
2. Option B: these are easy to stain
3. Option C: these are fused
4. Option D: they have endoreduplicated chromosomes
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Question 98 (AIPMT 2005, Q197)
Body Fluids and CirculationZoologyHard
Which group of three of the following five statements (A-E) contain all three correct statements regarding beri-beri? A. A crippling disease prevalent among the native population of sub-Sahara Africa. B. A deficiency disease caused by lack of thiamine (vitamin B $_1$ ). C. A nutritional disorder in infants and young children when the diet is persistently deficient in essential protein. D. Occurs in those countries where the staple diet is polished rice. E. The symptoms are pain from neuritis, paralysis, muscle wasting, progressive oedema, mental deterioration and finally heart failure.
1. Option A: A, B and D
2. Option B: B, C and E
3. Option C: A, C and E
4. Option D: B, D and E
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Question 99 (AIPMT 2005, Q198)
Photosynthesis in Higher PlantsBotanyEasy
Photosynthetic Active Radiation (PAR) has the following range of wavelengths:
1. Option A: 400 - 700 nm
2. Option B: 450 - 950 nm
3. Option C: 340 - 450 nm
4. Option D: 500 - 600 nm
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Question 100 (AIPMT 2005, Q199)
Biotechnology and Its ApplicationsZoologyEasy
Golden rice is a transgenic crop of the future with the following improved trait:
1. Option A: high lysine (essential amino acid) content
2. Option B: insect resistance
3. Option C: high protein content
4. Option D: high vitamin A content
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Question 101 (AIPMT 2005, Q200)
Human Health and DiseaseZoologyEasy
Which one of the following depresses brain activity and produces feelings of calmness, relaxation and drowsiness?
1. Option A: Valium
2. Option B: Morphine
3. Option C: Hashish
4. Option D: Amphetamines
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