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NEET Practice Questions (MCQs) with Answers & Solutions

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Which of the following acts on the endocrine part of pancreas?

A. Gastrin B. Secretin C. Cholecystokinin D. None of these

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Explanation

Refer NCERT, Heading 22.3, Para 1 page 339, Secretin acts on exocrine part of pancreas not on endocrine

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Which of the following is incorrect statement?

A. Secretin inhibits water secretion B. CCK stimulates secretion of intestinal juice C. GIP stimulates gastric secretion D. All are incorrect

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Explanation

Refer NCERT, Heading 22.3, Para 1&2 page 339

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Which of the following is an incorrect statement

A. Hormones bind to specific proteins located in the target tissues only. B. Receptors for hormones can only be present on the cell membrane C. Each receptor is specific to one hormone only D. Nuclear receptors are intracellular receptors

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Explanation

Refer NCERT, Heading 22.4, Para 1 page 339

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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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