Hormone Metabolism - Mock Test 35

Question 341

Melanogenesis is stimulated by?

A) MSH B) FSH C) LH D) HCG

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Question 342

Vasopressin and oxytocin circulate unbound to proteins and have very short plasma half lives, on the order of?

A) 1–2 minutes B) 2–4 minutes C) 5–8 minutes D) 10–12 minutes

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Question 343

The number of amino acids in the hormone oxytocin is?

A) 7 B) 9 C) 14 D) 18

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Question 344

The hormone required for uterine muscle contraction for child birth is?

A) Progesterone B) Estrogen C) Oxytocin D) Vasopressin

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Question 345

Catecholamine hormones are?

A) 3, 4-Dihydroxy derivatives of phenylethylamine B) p-Hydroxy derivatives of phenylacetate C) p-Hydroxy derivatives of phenylpyruvate D) p-Hydroxy derivatives of phenyllactate

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Question 346

Catecholamine hormones are synthesized in the?

A) Chromaffin cells of adrenal medulla B) Zona glomerulosa of adrenal cortex C) Zona fasciculate of adrenal cortex D) Zona reticularis of adrenal cortex

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Question 347

In the synthesis of Angiotensin I, rennin acts on Angiotensinogen and cleaves the?

A) Leucine – leucine at 10 and 11 position B) Valine – tyrosine at 3 and 4 position C) Isoleucine – histidine at 5 and 6 position D) Proline – histidine at 7 and 8 position

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Question 348

Aldosterone release is stimulated by?

A) α2-Globulin B) Renin C) Angiotensin II D) Growth hormone

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Question 349

In the rennin-angiotensin system the primary hormone is?

A) Angiotensinogen B) Angiotensin I C) Angiotensin II D) Angiotensin III

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Question 350

One of the potent st imu lators of aldosterone secretion is?

A) Increased sodium concentration B) Decreased potassium concentration C) Increased potassium concentration D) Increased ECF volume

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