Engineer & Medical

Excretory Products and th question bank (Zoology)

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Q1.

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Ascending limb of loop of Henle is impermeable to water and allows transport of electrolytes actively or passively. Reason (R) : Dilution of filtrate takes place due to efflux of electrolytes in the medullary fluid. In the light of the above statements, choose the correct answer from the options given below :

(A)

Both $(A)$ and $(R)$ are true and $(R)$ is the correct explanation of $(A)$

(B)

Both $(A)$ and $(R)$ are true but $(R)$ is not the correct explanation of $(A)$

(C)

$(A)$ is true but (R) is false

(D)

$(A)$ is true but (R) is true

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Q2.

Select the correct statements. (a) Angiotensin II activates the cortex of adrenal gland to release aldosterone. (b) Aldosterone leads to increase in blood pressure. (c) ANF acts as a check on renin-angiotensin mechanism. (d) $\mathrm{ADH}$ causes vasodilation. (e) Vasopressin is released from adenohypophysis. Choose the most appropriate answer from the options given below :

(A)

(a), (b) and (e) only

(B)

(c), (d) and (e) only

(C)

(b), (c) and (d) only

(D)

(a), (b) and (c) only

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