Free Excretory Products And Their Elimination (Weekly Quiz: 2) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Glucose is taken back from glomerular filtrate through

(a) osmosis

(b) active transport

(c) passive transport

(d) diffusion

Question-2

Which of the following statements is/are true?

1. Urine is hypertonic in distal convoluted tubule.
2. When the urine passes into the collecting tubule, it becomes hypotonic.
3. Urine is isotonic in proximal convoluted tubule.
4. Urine becomes more and more hypotonic as it passes through the Henle’s loop.

(a) (ii) and (iii) only

(b) (i) and (iv) only

(c) (i), (ii) and (iii) only

(d) (iii) only

Question-3

The human kidney produces how much concentrated urine than the initial filtrate formed?

(a) 4 times

(b) 2 times

(c) 6 times

(d) 3 times

Question-4

Assertion:
Nitrogenous waste in PCT absorb passively.
Reason:
It absorb by the process of diffusion down the concentration gradient.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-5

In the renal tubules the permeability of the distal convoluted tubule and collecting duct to water is controlled by

(a) growth hormone

(b) aldosterone

(c) vasopressin

(d) renin

Question-6

Angiotensinogen is a protein produced and secreted by

(a) liver cells

(b) macula densa cells

(c) endothelial cells (cells lining the blood vessels)

(d) Juxtaglomerular (JG) cells

Question-7

We can produce concentrated/dilute urine. This is facilitated by a special mechanism. Identify the mechanism.

(a) Reabsorption from collecting duct.

(b) Reabsorption from PCT.

(c) Reabsorption/Secretion in DCT.

(d) Counter current mechanism in Henle's loop/Vasa recta.

Question-8

The animal which retains urea for hypertonicity is (most appropriate)

(a) Man

(b) Elasmobranch

(c) Bird

(d) Amphibian

Question-9

Which one of the following statements in regard to the excretion by the human kidneys is correct?

(a) Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules.

(b) Descending limb of loop of Henle is impermeable to water.

(c) Distal convoluted tubule is incapable of reabsorbing $HCO^{–}_{3}$ .

(d) Ascending limb of loop of Henle is impermeable to electrolytes

Question-10

The shared terminal duct of the reproductive and urinary system in the human male is

(a) Vas deferens

(b) Urethra

(c) Ureter

(d) Vasa efferentia