CBSE Excretory Products their Elimination mock Exam paper,mcqs NEET

NCERT Excretory Products their Elimination Mock Exam-7

Question No:1

What are mainly reabsorbed from Henle’s loops?

[A] Potassium
[B] Glucose
[C] Water and NaCI
[D] Urea and NaCI



Question No:2

The part of the nephron that helps in active reabsorption of sodium is

[A] Bowman’s capsule
[B] Distal convoluted tubule
[C] Ascending limb of Henle’s loop
[D] Proximal convoluted tubules



Question No:3

Which of the following substance is actively secreted into glomerular filtrate of the kidney tubule?

[A] Amino acids
[B] Chloride ions
[C] Na+
[D] K+



Question No:4

The effect of antidiuretic hormone (ADH) on the kidney is to increases the

[A] excretion of water
[B] excretion of Na+
[C] permeability of the distal nephron to water
[D] glomerular filtration rate



Question No:5

In deficiency of ADH, rate of micturition

[A] decreases
[B] increases
[C] remains the same
[D] none



Question No:6

Volume of urine is regulated by

[A] aldosterone
[B] aldosterone and ADH
[C] aldosterone, ADH and testosterone
[D] ADH alone



Question No:7

When a person is suffering from poor renal reabsorption, which one of the following will not help in maintenance of blood volume?

[A] Increased ADH secretion
[B] Decreased glomerular filtration
[C] Increased arterial pressure in kidneys
[D] Decreased arterial pressure in kidneys



Question No:8

The number of nephrons in a kidney is equal to the

[A] number of Bowman’s capsules
[B] sum of Bowman’s capsules and glomeruli
[C] double the number of Bowman’s capsules
[D] sum of Bowman’s capsules and Malpighian corpuscles



Question No:9

If Henle’s loop were absent from mammalian nephron, which of the following is to be expected?

[A] The urine will be more dilute
[B] There will be no urine formation
[C] The urine will have more concentration
[D] There will be hardly any change in the quality and quantity of urine formed



Question No:10

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] 1 and 4 only
[B] 1, 2 and 3 only
[C] 2 and 3 only
[D] 3 only



Question No:11

Which one of the following groups of structures/organs have similar function?

[A] Typhlosole in earthworm, intestinal villi in rat and contractile vacuole in Amoeba
[B] Nephridia in earthworm, Malpighian tubules in cockroach and urinary tubules in rat
[C] Antennae of cockroach, tympanum of frog and clitellum of earthworm
[D] Incisors of rat, gizzard (proventriculus) of cockroach and tube feet of starfish



Question No:12

Ducts of Bellini are present hi

[A] liver
[B] kidney
[C] intestine
[D] medulla oblongata



Question No:13

Human kidney produce how much concentrated urine than initial filtrate formed

[A] 2 times
[B] 4 times
[C] 6 times
[D] 3 times



Question No:14

What is the ratio of concentration of outer medulla to outer portion of inner medulla?

[A] 1/3
[B] 2/3
[C] 4/3
[D] 1/4



Question No:15

The functioning of kidney is regulated by

[A] Hypothalamus
[B] JGA
[C] Heart
[D] All