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Structural Organisation in Animals MCQs for NEET — Zoology Questions with Answers

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The structure which joins skeletal muscles to bone is an example of

A. Dense regular connective tissue B. Dense irregular connective tissue C. Bone D. Loose connective tissue

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Explanation

NCERT page number-103; para-3

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Find the correct statement out with respect to cartilage.

A. Having solid and pliable intracellular material which cannot bear compressions B. Matrix is not secreted by chondrocytes C. Chondrocytes are enclosed in small cavities D. Vertebrates have cartilage replacement by bone in adult at few locations

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Explanation

NCERT page number-104; para-2

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Which type of connective tissue is present between adjacent bones of vertebral column?

A. Cartilage B. Dense regular C. Dense irregular D. Loose

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Explanation

NCERT page number-104; para-2

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Osteocytes are present in…….while chondrocytes are present in…….

A. Lacunae, cavities B. Cavities, lacunae C. Sinuses, lacunae D. Lacunae, holes

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Explanation

NCERT page number-104; para-2 and para-3

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Find the correct information about bones

A. Have hard and pliable ground substances B. Rich in calcium salts which alone provide strength C. Interact to skeletal muscles to bring about locomotion D. Bone marrow is present in all bones

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Explanation

NCERT page number-104; para-3

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What is wrong with respect to skeletal muscles?

A. The striated skeletal muscle fibres are bundled together in a randomly fashion. B. A sheath of loose connective tissue encloses many bundles of muscle fibres. C. Skeletal muscle is partially attached to skeletal bones D. All are wrong

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Explanation

NCERT page number-104; Muscle Tissue

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Which of the following is incorrect with respect to Cardiac muscle tissue?

A. Contractile tissue B. No cell junctions C. Contract as a unit D. Intercalated discs are present

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Explanation

NCERT page number-105; para-2

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Human heart has which type of tissue?

A. Epithelial B. Connective C. Muscular D. More than one option is correct

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Explanation

NCERT page number-106; Organ and Organ System

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Assertion : Urinary bladder can considerably expand to accommodate urine.

Reason : It is lined by stretchable squamous epithelium.

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion C. If the assertion is true but the reason is false D. If both the assertion and reason are false

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Explanation

Urinary bladder is not lined by squamous epithelium but by transitional epithelium which is a stretchable compound epithelium. It has a single layer of cuboidal cells at the base, 2-3 middle layers of large polygonal cells and a superficial layer of large, broad rectangular cells. Stretching considerably flattens and broadens the cells of superficial and middle layers, hence causing expansion of the urinary bladder.

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Assertion : Mast cells help in body defence.

Reason : Mast cells phagocytose & destroy microbes.

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Explanation

Mast cells are large irregular cells with granular cytoplasm, present in the areolar connective tissue. These cells store inflammation producing substances such as histamine in dense granules. Mast cells defend themselves which in turn helps in body defence by attracting phagocytes to the injured tissue.

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