NTA NEET Excretory Products their Elimination grand Exam papers,mcqs

NCERT Excretory Products their Elimination Mock Exam-11

Question No:1

In which one of the following organisms its excretory organs are correctly stated?

[A] Humans– Kidneys, sebaceous glands
[B] Earthworm— Pharyngeal, integumentary and septal nephridia
[C] Cockroach— Malpighian tubules and enteric caeca
[D] Frog–Kidneys, skin and buccal epithelium

Question No:2

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

[A] Descending limb of Loop of Henle is impermeable to water
[B] Distal convoluted tubule is incapable of reabsorbing HCO3
[C] Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules
[D] Ascending limb of loop of Henle is impermeable to electrolytes

Question No:3

The principal nitrogenous excretory compound in humans is synthesised

[A] In kidneys but eliminated mostly through liver
[B] In kidneys as well as eliminated by kidneys
[C] In liver and also eliminated by the same through bile
[D] In the liver, but eliminated mostly through kidneys

Question No:4

Which one of the following correctly explains the function of a specific part of a human nephron?

[A] Henle’s loop—Most reabsorption of the major substance from the glomerular filtrate
[B] Distal convoluted tubule—Reabsorption of ions into the surrounding blood capillaries
[C] Afferent arteriole—-Carries the blood away from the glomerulus towards the renal vein
[D] Podocytes—-Create minute space (slit pores) for the nitration of blood into the Bowman’s capsule

Question No:5

Which one of the following is not a part of a renal pyramid?

[A] Convoluted tubules
[B] Collecting ducts
[C] Loops Henle
[D] Peritubular capillaries

Question No:6

Uricotelic mode of passing but nitrogenous wastes is found in:

[A] Birds and annelids
[B] Amphibians and reptiles
[C] Insects and amphibians
[D] Reptiles and birds

Question No:7

Which one of the following statements is correct with respect to kidney function regulation?

[A] Exposure to cold temperature stimulates ADH release
[B] An increase in glomerular blood flow stimulates formation of angiotensin II
[C] During summer when body loses lot of water by evaporation, the release of ADH is suppressed
[D] When someone drinks lot of water ADH release is suppressed

Question No:8

A fall in glomerular filtration rate (GFR) activates:

[A] Adrenal cortex to release aldosterone
[B] Adrenal medulla to release adrenaline
[C] Posterior pituitary to release vasopressin
[D] Juxta glomerular cells to release rennin

Question No:9

Which one of the following option gives the correct categorization of six animals according to the type of nitrogenous wastes {A (Ammonotelic), B (Ureotelic), C (Uricotelic)} they give out?

[A] A: Frog, Lizards, B: Aquatic Amphibia, Humans, C: Cockroach, Pigeon
[B] A: Aquatic Amphibia, B: Frog, Humans, C: Pigeon, Lizards, Cockroach
[C] A: Aquatic Amphibia, B: Cockroach, Humans, C: Frog, Pigeon, Lizards
[D] A: Pigeon, Humans, B: Aquatic Amphibia, Lizards, C: Cockroach, Frog

Question No:10

The maximum amount of electrolytes and water (70-80 percent) from the glomerular filtrate is reabsorbed in which part of the nephron?

[A] Ascending limb of loop of Henle
[B] Distal convoluted tubule
[C] Proximal convoluted tubule
[D] Descending limb of loop of Henle

Question No:11

Which of the following causes an increase in sodium reabsorption in the distal convoluted tubule?

[A] Increase in aldosterone levels
[B] Increase in antidiuretic hormone levels
[C] Decrease in aldosterone levels
[D] Decrease in antidiuretic hormone levels

Question No:12

Removal of proximal convoluted tubule from the nephron will result in :

[A] More diluted urine
[B] More concentrated urine
[C] No change in quality and quantity of urine
[D] No urine formation

Question No:13

Which of the following does not favour the formation of large quantities of dilute urine?

[A] Alcohol
[B] Caffeine
[C] Renin
[D] Atrial-natriuretic factor

Question No:14

Human urine in usually acidic because:

[A] Excreted plasma proteins are acidic
[B] Potassium and sodium exchange generates acidity
[C] Hydrogen ions are actively secreted into the filtrate
[D] The sodium transporter exchange one hydrogen ion for each sodium ion, in peritubular capillaries.