Biochemistry - Mock Test 28

Question 271

According to the accepted concept of hormone action, if receptor molecules are removed from target organs, then the target organ will

A) not respond to the hormone B) continue to respond to hormone without any difference C) continue to respond to the hormone but in the opposite way D) continue to respond to the hormone but will require higher concentration

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Question 272

Which one of the following is not a second messenger in hormone action

A) Calcium B) Sodium C) cAMP D) cGMP

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Question 273

Chemically hormones are

A) biogenic amines only B) proteins, steroids and biogenic amines C) proteins only D) steroids only

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Question 274

Melatonin is a hormone produced by

A) adrenal gland B) pituitary gland C) pineal gland D) thymus gland

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Question 275

Insulin by chemical nature is

A) carbohydrate B) protein C) steroid D) lipid

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Question 276

Androgens are secreted by

A) pituitary B) testes C) ovaries D) thyroid

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Question 277

Estrogen is secreted by

A) liver B) spleen C) ovaries D) pituitary

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Question 278

Largest amount of iodine is found in

A) adrenals B) liver C) thyroid D) testes

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Question 279

Main similarity between hormone and enzyme is

A) both act at particular pH B) both are proteins C) both are required in small amounts D) both can be used again and again

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Question 280

Which of the following is not a downstream component?

A) Ras B) MEK C) ERK D) PIP3

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