Excretion Class 10 MCQ. We covered all the Excretion Class 10 MCQ in this post for free so that you can practice well for the exam.
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MCQ on Excretion for Students
…….. is enclosed within the Bowman’s capsule.
(A) PCT
(B) Glomerulus
(C) DCT
(D) Henle’s loop
Option b – Glomerulus
Read the given statements and select the correct option. Statement I: Henle’s loop primarily helps to maintain the osmolarity gradient within the kidney interstitium. Statement II: Vasa recta emerge from the efferent arteriole.
(A) Statement I is correct.
(B) Statement II is correct.
(C) Both statements I and II are correct.
(D) Both statements I and II are incorrect.
Option c – Both statements I and II are correct.
The ascending limb continues to form a highly coiled tubular region called
Which State of India experiences the maximum annual variation of rainfall?
(A) Meghalaya
(B) Kerala
(C) Rajasthan
(D) West Bengal
Show Answer(A) vasa recta
(B) distal convoluted tubule
(C) proximal convoluted tubule
(D) loop of Henle
Option b – distal convoluted tubule
Vasa recta are absent or highly reduced in
(A) juxtamedullary nephrons
(B) cortical nephrons
(C) collecting duct
(D) none of these
Option b – cortical nephrons
Counter current mechanism operates between i. Ascending limb of the loop of Henle ii. Descending limb of the loop of Henle iii. Vasa recta iv. PCT
Pakyong Airport is located in?
(A) Sikkim
(B) Jammu and Kashmir
(C) Arunachal Pradesh
(D) Mizoram
Show Answer(A) i,ii,iii and iv
(B) ii,iii and iv
(C) ii and iii
(D) i,ii and iii
Option d – i,ii and iii
Glucose does not appear in the urine because it is filtered and reabsorbed in the renal tubules. However, in some conditions, the presence of high levels of glucose is detected in urine. Identify the condition.
(A) Diabetes insipidus
(B) Diabetes mellitus
(C) Glomerulonephritis
(D) Uremia
Option b – Diabetes mellitus
A healthy individual on average excretes ……. gm of urea.
(A) 5-10
(B) 25-30
(C) 60-100
(D) 100-200
Option b – 25-30
Which of the following substance in the glomerular filtrate is reabsorbed by passive transport?
(A) Lysine
(B) Glucose
(C) Na and Cr
(D) Uric acid
Option d – Uric acid
Aquatic insects excrete
(A) urea
(B) ammonia
(C) uric acid
(D) urease
Option b – ammonia
Identify the WRONG statement.
(A) In mammals, ammonia produced by metabolism is converted into urea in the liver which is released into the blood and then excreted out by the kidneys.
(B) Some mammals retain some amount of urea in the kidney matrix to maintain osmolarity.
(C) In bony fishes, ammonia is excreted by diffusion.
(D) Compared to ammonia urea requires a large amount of water for its excretion.
Option d – Compared to ammonia urea requires a large amount of water for its excretion.
Assertion: Tadpole excretes ammonia whereas frog excretes urea. Reason: Terrestrial adaptations necessitated the production of lesser toxic nitrogenous wastes like urea.
(A) Both assertion and reason are true and the reason is the correct explanation of assertion.
(B) Both assertion and reason are true but the reason is not the correct explanation of assertion.
(C) The assertion is true but the reason is false
(D) Both assertion and reason are false.
Option a – Both assertion and reason are true and the reason is the correct explanation of assertion.
The GFR of a healthy individual is
(A) 50 mL/min
(B) 150 liters/min
(C) 80 liters/day
(D) 180 liters/day
Option d – 180 liters/day
Which of the following statement is INCORRECT?
(A) Glomerular filtration is a non-selective process.
(B) JGA of the kidney plays a significant role in the regulation of GFR.
(C) Nearly 99% of reabsorption of the filtrate occurs through different parts of the nephron.
(D) The collecting duct is the major site of selective secretion.
Option d – The collecting duct is the major site of selective secretion.
Juxta-Glomerular cells, under low glomerular blood flow, release
(A) Angiotensin-I
(B) Angiotensin-II
(C) Renin
(D) Aldosterone
Option c – Renin
The blood vessel leading into the Bowman’s capsule is called as
(A) efferent arteriole
(B) afferent arteriole
(C) renal vein
(D) vasa recta
Option b – afferent arteriole
Which of the following causes an increase in sodium reabsorption in the distal parts of the tubule?
(A) Decrease in aldosterone levels
(B) Decrease in level of hormone – renin
(C) Increase in aldosterone levels
(D) Increase in the level of hormone – ANF
Option c – Increase in aldosterone levels
Identify the substance that is an osmoregulator as well as a nitrogenous waste.
(A) Ammonia
(B) Uric acid
(C) Urea
(D) All of these
Option c – Urea
Part of the nephron impermeable to electrolytes is
(A) Distal convoluted tubule
(B) Descending limb of the loop of Henle
(C) Ascending limb of the loop of Henle
(D) Collecting duct
Option b – Descending limb of the loop of Henle
……… forms the excretory product in humans.
(A) uric acid
(B) urea
(C) ammonia
(D) albumin
Option b – urea
Diuresis is the condition of
(A) accumulation of urea in the kidney
(B) accumulation of ketone bodies in the kidney
(C) increased production of urine
(D) decreased production of urine
Option c – increased production of urine
Identify the INCORRECT statement regarding hemodialysis.
(A) It is a procedure suggested for individuals suffering from uremia.
(B) The dialyzing fluid has the same composition as that of plasma, except for nitrogenous waste.
(C) The dialysis unit contains a cellophane tube.
(D) Heparin is added to the blood before it is pumped back into the body through a vein.
Option d – Heparin is added to the blood before it is pumped back into the body through a vein.
We covered all the excretion class 10 MCQ above in this post for free so that you can practice well for the exam.
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