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Zoology MCQs for NEET — Practice Questions with Answers

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Binding of a hormone to its receptor leads to

A. formation of hormone receptor complex B. leads to biochemical changes in target tissue C. affects target tissue metabolism D. All of these

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Explanation

Refer NCERT, Heading 22.4, Para 1 page 339

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Which of the following is not a steroid hormone?

A. Cortisol B. Estradiol C. Progesterone D. FSH

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Explanation

Refer NCERT, Heading 22.4, Para 1 page 340

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Which of the following hormone can cause tissue growth and differentiation?

A. FSH B. LH C. Estrogen D. Growth hormone

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Explanation

Refer NCERT, Heading 22.4, Para 1 page 341, Figure 22.5

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Which of the following act as secondary messenger in hormonal action?

A. cAMP B. ADP C. NAD D. ATP

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Explanation

Refer NCERT, Heading 22.4, Para 2 page 340

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Which of the following can act as primary messenger ?

A. cAMP B. ADP C. NAD D. Insulin

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Explanation

Refer NCERT, Heading 22.4, Para 1 page 340, hormone always act as primary messenger

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Besides cAMP, which one of the following molecules act as “secondary messenger” in biological system?

A. Ca⁺² B. ATP C. cDNA D. CGTP

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Explanation

Refer NCERT, Heading 22.4, Para 1 page 340

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Which of the following is true about neural system

A. It provides point to point rapid coordination among organs B. Coordination is fast and short lived C. Response is very quick in it D. All of the above

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Explanation

Refer NCERT, Para 1, Page 331

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The system which coordinate and regulate the physiological functions in the body is

A. Nervous System and Excretory system B. Endocrine System and Circulatory system C. Nervous System and Endocrine System D. Excretory and Circulatory system

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Explanation

Refer NCERT, Para 1, Page 331

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Which of the following is true about Endocrine system

A. It is not directly connected with organs B. Response is slow C. coordinates through secretion of hormones D. All of the above

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Explanation

Refer NCERT, Para 1, Page 331

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Which of the following is true about Endocrine glands

A. Ductless glands B. Secretion is hormones C. Pour its secretion into lymph and venous blood D. All of these

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Explanation

Refer NCERT, Heading 22.1, Para 1, Page 331

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