Excretory Products and Their Elimination MCQ. We covered all the Excretory Products and Their Elimination MCQ in this post for free so that you can practice well for the exam.
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MCQ on Excretory Products and their Elimination for NEET Students
…….. activates the adrenal cortex to release aldosterone.
(A) Angiotensinogen
(B) Angiotensin I
(C) Angiotensin II
(D) Renin
Option c – Angiotensin II
The distal convoluted tubules of many nephrons join to form
(A) Proximal convoluted tubule
(B) Ascending limb of Henle’s loop
(C) Collecting duct
(D) Descending limb of Henle’s loop.
Option c – Collecting duct
The following substances form the components of the dialyzing fluid, EXCEPT
(A) proteins
(B) glucose
(C) ammonia
(D) minerals
Option c – ammonia
Which of the following region of the nephron plays a significant role in the maintenance of high osmolarity?
(A) PCT
(B) DCT
(C) Henle’s loop
(D) Collecting duct
Option c – Henle’s loop
Bowman’s capsule and ……… together form the Malpighian corpuscle.
(A) Vasa recta
(B) Proximal convoluted tubule
(C) Glomerulus
(D) Loop of Henle’s
Option c – Glomerulus
Terrestrial amphibians excrete
(A) uric acid
(B) urea
(C) ammonia
(D) none of these
Option b – urea
Select the option that correctly identifies the sequence of processes of urine formation.
(A) Reabsorption, Glomerular filtration. Secretion
(B) Glomerular filtration, Reabsorption, Secretion
(C) Glomerular filtration, Secretion, Reabsorption
(D) Reabsorption, Secretion, Glomerular filtration
Option b – Glomerular filtration, Reabsorption, Secretion
Which of the following is a CORRECT function of aldosterone?
(A) It converts angiotensin I to angiotensin II
(B) It causes vasodilation.
(C) It causes the reabsorption of Na and water from the distal parts of the tubule.
(D) It controls micturition.
Option c – It causes the reabsorption of Na and water from the distal parts of the tubule.
Crustaceans like prawns excrete through
(A) Flame cells
(B) Protonephridia
(C) Malpighian tubule
(D) Antennal glands
Option d – Antennal glands
ANF causes
(A) increase in blood pressure
(B) increase in glomerular blood pressure
(C) dilation of blood vessels
(D) atria of the heart to release rennin
Option c – dilation of blood vessels
……… is a tuft of capillaries formed from afferent arterioles.
(A) DCT
(B) PCT
(C) Glomerulus
(D) Vasa recta
Option c – Glomerulus
What will happen if due to old age the osmoreceptors do not function properly?
(A) Decrease in reabsorption of water
(B) Urine becomes hypotonic than normal urine
(C) Excretion of voluminous urine
(D) All of these
Option d – All of these
What is common between urea, uric acid, and ammonia?
(A) All of them are equally toxic.
(B) All of them require less amount of water for excretion.
(C) All of them are nitrogenous waste products.
(D) All of them are formed in the lungs.
Option c – All of them are nitrogenous waste products.
Malpighian tubules are the
(A) excretory structures of mammals
(B) excretory structures of insects
(C) respiratory organs of annelids
(D) respiratory organs of rotifers
Option b – excretory structures of insects
Identify the region of the nephron located in the renal medulla.
(A) Renal corpuscle
(B) Glomerulus
(C) Distal convoluted tubule
(D) Henle’s loop
Option d – Henle’s loop
70 – 80% reabsorption of useful substances from glomerular filtrate occurs in
(A) Collecting duct
(B) Loop of Henle
(C) Proximal Convoluted Tubule
(D) Distal Convoluted Tubule
Option c – Proximal Convoluted Tubule
In humans, columns of Bertini formed in the kidney are the extensions of
(A) medulla into cortex
(B) pelvis into urethra
(C) medulla into pelvis
(D) cortex into medulla
Option d – cortex into medulla
Identify the CORRECT match with respect to parts of the nephron and their functions.
(A) Podocytes: Secrete enzymes renin, angiotensin, and ANF
(B) Loop of Henle: Maximum reabsorption occurs through its ascending limb
(C) Distal convoluted tubule: Maintains pH and sodium-potassium balance in the blood
(D) Collecting duct: Ultrafiltration of blood
Option c – Distal convoluted tubule: Maintains pH and sodium-potassium balance in the blood
The enzyme renin is secreted by
(A) atria of heart
(B) islets of Langerhans
(C) adrenal cortex
(D) JGA cells
Option d – JGA cells
Which of the following are uricotelic organisms?
(A) Frogs and toads
(B) Land snails, reptiles, and insects
(C) Monkey and snake
(D) Labeo and Catla
Option b – Land snails, reptiles, and insects
Read the following statements and select the correct option. Statement I: ANF mechanism acts as a check on the renin-angiotensin mechanism. Statement II: ANF causes vasoconstriction and thereby decreases blood pressure.
(A) Statement I is correct while Statement II is incorrect.
(B) Statement I is incorrect while Statement II is correct.
(C) Both statements are correct.
(D) Both statements are incorrect.
Option a – Statement I is correct while Statement II is incorrect.
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