Structural Organisation In Animals And Plants PYQs

What is the name of the blood vessel that carries deoxygenated blood from the body to the heart in a frog?

Given below are two statements : Statement I : In a floral formula ⊕ stands for zygomorphic nature of the flower, and G stands for inferior ovary. Statement II : In a floral formula ⊕ stands for actinomorphic nature of the flower and G stands for superior ovary. In the light of the above statements, choose the correct answer from the options given below :

Which of the following statement is correct about location of the male frog copulatory pad?

Find the statement that is NOT correct with regard to the structure of monocot stem.

In the seeds of cereals, the outer covering of endosperm separates the embryo by a protein-rich layer called :

Match List I with List II : Choose the option with all correct matches.

Role of the water vascular system in Echinoderms is : A. Respiration and Locomotion B. Excretion and Locomotion C. Capture and transport of food D. Digestion and Respiration E. Digestion and Excretion Choose the correct answer from the options given below :

Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and lungs. Choose the correct answer from the following :

In the given figure, which component has thin outer walls and highly thickened inner walls?

Which of the following is an example of actinomorphic flower?

Given below are two statements: Statement I : Parenchyma is living but collenchyma is dead tissue. Statement II : Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms. In the light of the above statements, choose the correct answer from the options given below:

Match List I with List II Choose the correct answer from the options given below:

Match List I with List II : Choose the correct answer from the options given below :

In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on :

Match List I with List II : Choose the correct answer from the options given below :

Match List I with List II related to digestive system of cockroach. Choose the correct answer from the options given below :

In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as -

Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics specific to family Fabaceae but not found in Solanaceae or Liliaceae.

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R : Assertion A : Late wood has fewer xylary elements with narrow vessels. Reason R : Cambium is less active in winters. In the light of the above statements, choose the correct answer from the options given below :

Given below are two statements : Statement I : Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body. Statement II : Exarch condition is the most common feature of the root system. In the light of the above statements, choose the correct answer from the options given below :

Identify the correct statements : A. Lenticels are the lens-shaped openings permitting the exchange of gases. B. Bark formed early in the season is called hard bark. C. Bark is a technical term that refers to all tissues exterior to vascular cambium. D. Bark refers to periderm and secondary phloem. E. Phellogen is single-layered in thickness. Choose the correct answer from the options given below :

Match List I with List II. Choose the correct answer from the options given below:

Match List I with List II. Choose the correct answer from the options given below:

Given below are two statements: Statement I: Ligaments are dense irregular tissue. Statement II: Cartilage is dense regular tissue. In the light of the above statements, choose the correct answer from the options given below:

The unique mammalian characteristics are:

Match List I with List II. Choose the correct answer from the options given below:

Which of the following is characteristic feature of cockroach regarding sexual dimorphism?

In cockroach, excretion is brought about by- A. Phallic gland B. Urecose gland C. Nephrocytes D. Fat body E. Collaterial glands Choose the correct answer from the options given below:

The flowers are zygomorphic in: (a) Mustard (b) Gulmohar (c) Cassia (d) Datura (e) Chilly Choose the correct answer from the options given below:

In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to: (a) secretion of secondary metabolites and their deposition in the lumen of vessels. (b) deposition of organic compounds like tannins and resins in the central layers of stem. (c) deposition of suberin and aromatic substances in the outer layer of stem. (d) deposition of tannins, gum, resin and aromatic substances in the peripheral layers of stem. (e) presence of parenchyma cells, functionally active xylem elements and essential oils. Choose the correct answer from the options given below:

Identify the correct set of statements: (a) The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea (b) Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin (c) Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves (d) Rhizophora shows vertically upward growing roots that help to get oxygen for respiration (e) Subaerially growing stems in grasses and strawberry help in vegetative propagation Choose the correct answer from the options given below:

Which one of the following plants shows vexillary aestivation and diadelphous stamens?

Exoskeleton of arthropods is composed of:

The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood: (a) It is also called as the earlywood (b) In spring season cambium produces xylem elements with narrow vessels (c) It is lighter in colour (d) The springwood along with autumnwood shows alternate concentric rings forming annual rings (e) It has lower density Choose the correct answer from the options given below:

Which of the following is present between the adjacent bones of the vertebral column?

Which of the following is not a connective tissue?

Tegmina in cockroach arises from:

In which of the following animals, digestive tract has additional chambers like crop and gizzard?

Match List-I with List-II: Choose the correct answer from the options given below:

Diadelphous stamens are found in

Match List-I with List-II.

Match List-I with List-II. Select the correct answer from the options given below

Match Column-I with Column-II.

Which of the following characteristics is incorrect with respect to cockroach?

Which of the following statements wrongly represents the nature of smooth muscle?

Following are the statements about prostomium of earthworm: (a) It serves as a covering for mouth. (b) It helps to open cracks in the soil into which it can crawl. (c) It is one of the sensory structures. (d) It is the first body segment. Choose the correct answer from the options given below.

Cuboidal epithelium with brush border of microvilli is found in

Ray florets have

If the head of cockroach is removed, it may live for few days because

The transverse section of a plant shows following anatomical features: (a) Large number of scattered vascular bundles surrounded by bundle sheath (b) Large conspicuous parenchymatous ground tissue (c) Vascular bundles conjoint and closed (d) Phloem parenchyma absent Identify the category of plant and its part:

Match the following columns and select the correct option.

The ovary is half inferior in:

Match the following columns and select the correct option.

Goblet cells of alimentary canal are modified from

Match the placental types (column-I) with their examples (column-II).

In the dicot root the vascular cambium originates from :

Which of the following shows whorled phyllotaxy?

Regeneration of damaged growing grass following grazing is largely due to :

Bicarpellary ovary with obliquely placed septum is seen in :

Which of the following statements is INCORRECT?

Which of the following is made up of dead cells?

The morphological nature of the edible part of coconut is

Root hairs develop from the region of

The vascular cambium normally gives rise to

In Bougainvillea thorns are the modifications of

Coconut fruit is a

Out of $X$ pairs of ribs in humans only $Y$ pairs are true ribs. Select the option that correctly represents values of $X$ and $Y$ and provides their explanation:

Cortex is the region found between

Which one of the following animals has two separate circulatory pathways?

Axile placentation is present in:

The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of:

The wheat grain has an embryo with one large, shield-shaped cotyledon known as:

Among china rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?

Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:

A jawless fish, which lays eggs in fresh water and whose ammocoetes larva after metamorphosis return to the ocean is:

The chitinous exoskeleton of arthropods is formed by the polymerisation of:

Read the different components from (a) to (d) in the list given below and identify the correct order of their arrangement from outer side to inner side in a woody dicot stem: (a) Secondary cortex (b) Wood (c) Secondary phloem (d) Phellem The correct order is :

Non-albuminous seed is produced in:

Planaria possess high capacity of:

Choose the correctly matched pair:

Choose the correctly matched pair:

Consider the following four statements A, B, C and D and select the right option for two correct statements. (A) In vexillary aestivation, the large posterior petal is called standard, two lateral ones are wings and two small anterior petals are termed keel. (B) The floral formula for Liliaceae is: $$\oplus \; ⚥ \; P_{3+3} \; A_{3+3} \; G_{\underline{3}}$$ (C) In pea flower the stamens are monadelphous. (D) The floral formula for Solanaceae is: $$\oplus \; ⚥ \; K_{(5)} \; C_{(3)} \; G_{(2)}$$ The correct statements are :

Transport of food material in higher plants takes place through :

Vegetative propagation in $Pistia$ occurs by :

Which one of the following pairs of structure is correctly matched with their correct description?

Given below is the diagram of a stomatal apparatus. In which of the following all the four parts labelled as A, B, C and D are correctly identified?

Which one of the following is the correct description of a certain part of a normal human skeleton?

Thorn of Bougainvillea and tendril of Cucurbita are examples of

Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?

The fruit is chambered, developed from an inferior ovary and has seeds with succulent testa in

Dry indehiscent single-seeded fruit formed from a bicarpellary syncarpous inferior ovary is

Vascular tissues in flowering plants develop from

Replum is present in the ovary of flower of

The fleshy receptacle of syconus of fig encloses a number of

Which one of the following is the true description about an animal concerned?

Which one of the following items gives its correct total number?

Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to

The length of different internodes in a culm of sugarcane is variable because of

Which one of the following characters is not typical of the class Mammalia?

An acromian process is characteristically found in the:

Epithelial cells of the intestine involved in food absorption have on their surface:

In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues?

Which of the following pairs is correctly matched?