AIPMT 2009
Previous Year Questions
Complete AIPMT 2009 question paper — 200 questions across Physics, Chemistry and Biology with detailed solutions and AI explanations.
200
Total
49
Physics
49
Chemistry
102
Biology
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The segment of DNA that acts as the instrument manual for the synthesis of protein is:
Which of the following hormones contains iodine?
Which one of the following has haplontic life cycle?
T.O. Diener discovered a:
Mannitol is the stored food in:
Which one of the following is a vascular cryptogam?
Phylogenetic system of classification is based on:
Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
Peripatus is a connecting link between:
Which one of the following pairs of animals comprises jawless fishes?
If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is:
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Plasmodesmata are:
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Stroma in the chloroplast of higher plant contains:
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Synapsis occurs between:
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Middle lamella is composed mainly of:
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Cytoskeleton is made up of:
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The cell junctions called tight, adhering and gap junctions are found in:
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The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in:
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The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is:
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Given below is a schematic break-up of the phases / stages of cell cycle. Which one of the following is the correct indication of the stage / phase in the cell cycle?
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What is not true for genetic code?
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Removal of introns and joining the exons in a defined order in a transcription unit is called:
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Semiconservative replication of DNA was first demonstrated in:
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Whose experiments cracked the DNA code and discovered unequivocally that a genetic code is a triplet?
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Point mutation involves:
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In the case of peppered moth (*Biston betularia*), the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of:
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Sickle cell anaemia is:
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Study the pedigree chart given below. What does it show?
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The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because 'O' in it refers to having:
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Select the incorrect statement from the following:
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Cotyledons and testa respectively are edible parts in:
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An example of a seed with endosperm, perisperm and caruncle is:
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Guard cells help in:
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Manganese is required in:
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Oxygenic photosynthesis occurs in:
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A fruit developed from hypanthodium inflorescence is called:
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The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:
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The floral formula is that of:
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An example of axile placentation is:
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In barley stem vascular bundles are:
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Aerobic respiratory pathway is appropriately termed:
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Palisade parenchyma is absent in leaves of:
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Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:
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Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by:
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Cyclic photophosphorylation results in the formation of:
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In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart?
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Uric acid is the chief nitrogenous component of the excretory products of:
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Which one of the following pairs of food compounds in humans reaches the stomach totally undigested?
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Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?
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Compared to blood our lymph has:
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What will happen if the stretch receptors of the urinary bladder wall are totally removed?
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Which part of human brain is concerned with the regulation of body temperature?
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A young infant may be feeding entirely on mother's milk which is white in colour but the stools which the infant passes out are quite yellowish. What is this yellow colour due to?
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Globulins contained in human blood plasma are primarily involved in:
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Seminal plasma in humans is rich in:
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Given below is a diagrammatic sketch for a portion of human male reproductive system. Select the correct set of the names of the parts labelled A, B, C and D.
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Which one of the following is the correct matching of three items and their grouping category?
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Which one of the following statement is true regarding digestion and absorption of food in humans?
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Which one of the following correctly described the location of some body parts in the earthworm *Pheretima*?
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Elbow joint is an example of:
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Which one of the following is considered important in the development of seed habit?
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One of the synthetic auxins is:
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Which one of the following acids is a derivative of carotenoids?
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Vegetative propagation in mint occurs by:
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Which one of the following plants is monoecious?
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Foetal ejection reflex in human female is induced by:
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Which of the following is the correct matching of the events occurring during menstrual cycle?
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Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?
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The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is:
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A change in the amount of yolk and its distribution in egg will effect:
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When breast feeding is replaced by less nutritive food low in proteins and calories, the infants below one year are likely to suffer from:
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Which one of the following types organisms occupy more than one trophic level in a pond ecosystem?
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Which one of the following has maximum genetic diversity in India?
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Montreal protocol aims at:
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Chipko movement was launched for the protection of:
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The correct sequence of plants in hydrosere is :
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A country with a high rate of population growth took measures to reduce it. The figure below shows age-sex pyramids of populations A and B twenty years apart. Select the correct interpretation about them:
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Step taken by the Government of India to control air pollution include:
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Biochemical Oxygen Demand (BOD) in a river water:
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DDT residues are rapidly passed through food chain causing biomagnification because DDT is:
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Global agreement in specific control strategies to reduce the release of ozone depleting substances was adopted by:
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Somaclones are obtained by:
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Which one is the wrong pairing for the disease and its causal organism?
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Which of the following is not used as a biopesticide?
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Which of the following plant species would you select for the production of bioethanol?
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Which of the following is a symbiotic nitrogen fixer?
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A health disorder that results from the deficiency of thyroxine in adults and characterized by (i) a low metabolic rate (ii) increase in body weight and (iii) tendency to retain water in tissues is:
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Which one of the following statement is correct?
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Which of the following is a pair of viral diseases?
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A person likely to develop tetanus is immunized by administering:
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Use of anti-histamines and steroids give a quick relief from:
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Alzheimer disease in humans is associated with the deficiency of:
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Which one of the following is commonly used in transfer of foreign DNA into crop plants?
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The bacterium Bacillus thuringiensis is widely used in contemporary biology as:
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Which one of the following pairs is wrongly matched?
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Polyethylene glycol method is used for:
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Transgenic plants are the ones:
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What is true about Bt toxin?
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The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by:
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There is no DNA in:
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The letter T in T-lymphocyte refers to:
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Tiger is not a resident in which one of the following National Park?
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Sodium has body centred packing. Distance between two nearest atoms is . The lattice parameter is:
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10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be:
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Oxidation number of P in , of S in and that of Cr in are respectively:
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Maximum number of electrons in a subshell of an atom is determined by the following:
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Which of the following is not permissible arrangement of electrons in an atom?
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From the following bond energies: H–H bond energy = C=C bond energy = C–C bond energy = C–H bond energy = Enthalpy for the reaction:
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The ionization constant of ammonium hydroxide is at . Hydrolysis constant of ammonium chloride is:
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Given: (i) (ii) The electrode potential for the reaction: will be:
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What is the in the final solution prepared by mixing of HCl with of ?
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The energy absorbed by each molecule of a substance is and bond energy per molecule is . The kinetic energy of the molecule per atom will be:
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For the reaction: If The value of will be:
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For the reaction products, it is observed that: (1) On doubling the initial concentration of only, the rate of reaction is also doubled. (2) On doubling the initial concentration of both and , there is a change by a factor of in the rate of the reaction. The rate law of this reaction is:
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The equivalent conductance of solution of a weak monobasic acid is and at infinite dilution is . The dissociation constant of this acid is:
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A aqueous solution of an ionic compound freezes at . Number of moles of ions which mole of ionic compound produces on being dissolved in water will be: ( = 1.86 °C/m)
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In the reaction: The rate of appearance of bromine Br₂ is related to rate of disappearance of bromide ions as follows:
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Lithium metal crystallizes in a body centred cubic crystal. If the length of the side of the unit cell of lithium is , the atomic radius of lithium will be:
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The dissociation constants of acetic acid and HCN at are and respectively. The equilibrium constant for: would be:
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The values of and for the reaction: are 170 kJ and 170 J K⁻¹ respectively. This reaction will be spontaneous at:
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Half-life period of a first-order reaction is . The specific rate constant of the reaction is:
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In which of the following molecules / ions , , and , the central atom is hybridized?
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Among the following which is the strongest oxidizing agent?
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According to MO theory which of the following lists ranks the nitrogen species in terms of increasing bond order?
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In the case of alkali metals, the covalent character decreases in order:
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Which of the following oxides is not expected to react with sodium hydroxide?
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is reduced by electrolysis at low potentials and high currents. If amperes of current is passed through molten for hours, what mass of aluminium is produced? (Assume current efficiency, atomic mass of )
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The stability of oxidation state increases in the sequence:
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Copper crystallizes in a face-centred cubic lattice with a unit cell length of . What is the radius of copper atom in pm?
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What is the dominant intermolecular force or bond that must be overcome in converting liquid to a gas?
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Which of the following complex ions is expected to absorb visible light? (At no. Zn = 30, Sc = 21, Ti = 22, Cr = 24)
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Out of and , and of , , , the colourless species are:
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Which of the following does not show optical isomerism? ethylenediamine
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Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation states?
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Which of the following molecules acts as a Lewis acid?
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Amongst the elements with the following electronic configurations, which one of them may have the highest ionization energy?
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The straight chain polymer is formed by:
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The IUPAC name of the compound having the formula is:
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Which of the following compounds will exhibit cis-trans (geometrical) isomerism?
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H₂COH.CH₂OH on heating with periodic acid gives:
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Consider the following reaction: The product Z is :
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Benzene reacts with in the presence of anhydrous to form:
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Nitrobenzene can be prepared from benzene by using a mixture of concentrated and concentrated . In the mixture, nitric acid acts as a/an:
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Which of the following reactions is an example of nucleophilic substitution reaction?
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Which one of the following is employed as a tranquilizer?
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Structures of some common polymers are given. Which one is not correctly presented?
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Predict the product:
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Propionic acid with yields a dibromo product. Its structure would be:
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Trichloroacetaldehyde reacts with chlorobenzene in presence of sulphuric acid and produces:
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Consider the following reaction: The product is:
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The state of hybridization of , , and of the hydrocarbon shown below is:
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If the dimensions of a physical quantity are given by [ ], then the physical quantity will be:
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A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is and that covered in the first 20 seconds is then:
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A bus is moving with a speed of on a straight road. A scooterist wishes to overtake the bus in . If the bus is at a distance of from the scooterist, with what speed should the scooterist chase the bus?
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The mass of lift is . When the tension in the supporting cable is , then its acceleration is:
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An explosion blows a rock into three parts. Two parts go off at right angles to each other. These two are: a first part moving with a velocity of and a second part moving with a velocity of . If the third part flies off with a velocity of , its mass would be:
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A block of mass is attached to the lower end of a vertical spring. The spring is hung from a ceiling and has force constant . The mass is released from rest with the spring initially unstretched. The maximum extension produced in the length of the spring will be:
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Two bodies of mass and have position vectors and respectively. The centre of mass of this system has a position vector:
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Four identical thin rods each of mass and length form a square frame. The moment of inertia of this frame about an axis through the centre of the square and perpendicular to its plane is:
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A thin circular ring of mass and radius is rotating in a horizontal plane about an axis perpendicular to its plane with angular velocity . If two objects each of mass are attached gently to opposite ends of a diameter of the ring, then the ring will rotate with angular velocity:
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A body under the action of a force acquires an acceleration of . The mass of the body must be:
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If is the force acting on a particle having position vector and be the torque of this force about the origin, then:
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The figure shows the elliptical orbit of a planet m about the Sun . The shaded area is twice the shaded area . If is the time for the planet to move from to and is the time to move from to , then:
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An engine pumps water continuously through a hose. Water leaves the hose with velocity and is the mass per unit length of the water jet. What is the rate at which kinetic energy is imparted to water?
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A body of mass is thrown vertically upward with velocity . It momentarily comes to rest after reaching a height of . How much energy is lost due to air friction? ()
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The two ends of a rod of length and uniform cross-sectional area are kept at temperatures and (). The rate of heat transfer dQ/dt through the rod in steady state is:
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In thermodynamic processes, which of the following statements is not true?
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A black body at radiates heat at the rate of . At , the rate of heat radiated will be:
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The internal energy change in a system that has absorbed of heat and done of work is:
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The driver of a car traveling with speed towards a hill sounds a horn of frequency . If the speed of sound in air is , the frequency of reflected sound heard by the driver is:
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A simple pendulum performs simple harmonic motion about with an amplitude and time period . The speed of the pendulum at will be:
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Which one of the following equations of motion represents simple harmonic motion? Where k, , and a are all positive
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The electric field part of an electromagnetic wave in a medium is represented by: The wave is:
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A wave in a string has amplitude . The wave travels in the positive -direction with speed and 5 complete waves are present in a length of . The equation describing the wave is:
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Each of the two strings of lengths and are tensioned separately by . Mass per unit length of both strings is . When both strings vibrate simultaneously, the number of beats produced is:
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Three capacitors each of capacitance and breakdown voltage are joined in series. The equivalent capacitance and breakdown voltage of the combination will be:
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A wire of resistance per metre is bent to form a complete circle of radius . The resistance between its two diametrically opposite points A and B is:
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A bar magnet having a magnetic moment of is free to rotate in a horizontal plane. A horizontal magnetic field exists in the space. The work done in rotating the magnet slowly from a direction parallel to the field to a direction from the field is:
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The magnetic force acting on a charged particle of charge in a magnetic field of acting in y-direction, when the particle velocity is , is:
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A conducting circular loop is placed in a uniform magnetic field of with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at . The induced emf in the loop when the radius is is:
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The electric potential at a point is given by:
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See the electrical circuit shown in the figure. Which one of the following equations is a correct equation for it?
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A galvanometer having a coil resistance of shows full scale deflection when a current of passes through it. It can be converted into an ammeter to read currents up to by:
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Under the influence of a uniform magnetic field, a charged particle moves with constant speed V in a circle of radius . The time period of rotation of the particle:
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Power dissipated in an LCR series circuit connected to an AC source of emf is:
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Three concentric spherical shells have radii , , and and have surface charge densities , , and respectively. If , , and denote the potentials of the shells, then for , we have:
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A student measures the terminal potential difference of a cell (emf and internal resistance ) as a function of current flowing through it. The slope and intercept of the graph between and are respectively equal to:
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A rectangular, a square, a circular and an elliptical loop, all in the plane, are moving out of a uniform magnetic field with a constant velocity . The magnetic field is directed along the negative -axis direction. The induced emf, during the passage of these loops coming out of the field region, will not remain constant for:
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If a diamagnetic substance is brought near the north or the south pole of a bar magnet, it is:
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The number of photoelectrons emitted for light of frequency (higher than threshold frequency ) is proportional to:
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Monochromatic light of wavelength is produced by a helium-neon laser. The power emitted is . The number of photons arriving per second on the average at a target irradiated by this beam is:
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The figure shows a plot of photo current versus anode potential for a photosensitive surface for three different radiations. Which one of the following is correct?
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The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an:
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The ionization energy of the electron in hydrogen atom in its ground state is . The atoms are excited to higher energy levels to emit radiations of 6 wavelengths. Maximum wavelength corresponds to transition between:
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In a Rutherford scattering experiment when a projectile of charge and mass approaches a target nucleus of charge and mass , the distance of closest approach is . The energy of the projectile is:
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In the nuclear decay given below: The particles emitted in the sequence are:
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The mean free path of electrons in a metal is . The electric field which can give on an average energy to an electron in the metal will be in units of :
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A p–n photodiode is fabricated from a semiconductor with a band gap of . It can detect a signal of wavelength:
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The symbolic representation of four logic gates are given below. The logic symbols for OR, NOT and NAND gates are respectively:
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A transistor is operated in common-emitter configuration at such that a change in the base current from to produces a change in the collector current from to . The current gain is:
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