Excretory Products and Their Elimination · Biology · NEET
MCQ (Single Correct Answer)
Given below are two statements:
Statements I: Concentrated urine is formed due to counter current mechanism in nephron.
Statement II: Counter current mechanism helps to maintain osmotic gradient in the medullary interstitium.
In the light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements :
Statement I : In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.
Statement II : The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for reabsorption.
In the light of the above statements, choose the correct answer from the option given below :
Choose the correct statement given below regarding juxta medullary nephron.
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion (A) : Ascending limb of loop of Henle is impermeable to water and allows transport of electrolytes actively or passively.
Reason (R) : Dilution of filtrate takes place due to efflux of electrolytes in the medullary fluid.
In the light of the above statements, choose the correct answer from the options given below :
Given below are two statements :
Statement I :- Goblet cells are unicellular glands.
Statement II :- Earwax is the secretion of exocrine gland.
In the light of the above statements, choose the correct answer from the options given below:
Arrange the events of Renin - Angiotensin mechanism in correct sequence.
(A) Activation of JG cells and release of renin.
(B) Angiotensin II activates release of aldosterone.
(C) Fall in glomerular blood pressure.
(D) Reabsorption of Na+ and water from distal convoluted tubule.
(E) Angiotensinogen is converted to Angiotensin I and then to Angiotensin II.
Choose the correct answer from the options given below :
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Nephrons are of two types: Cortical & Juxta medullary, based on their relative position in cortex and medulla.
Reason R : Juxta medullary nephrons have short loop of Henle whereas, cortical nephrons have longer loop of Henle.
In the light of the above statements, choose the correct answer from the options given below :
Match List I with List II.
List I | List II | ||
---|---|---|---|
(A) | Taenia | (I) | Nephridia |
(B) | Paramoecium | (II) | Contractile vacuole |
(C) | Periplaneta | (III) | Flame cells |
(D) | Pheretima | (IV) | Urecose gland |
Choose the correct answer from the options given below :
Which of the following statements are correct?
A. An excessive loss of body fluid from the body switches off osmoreceptors.
B. ADH facilitates water reabsorption to prevent diuresis.
C. ANF causes vasodilation.
D. ADH causes increase in blood pressure.
E. ADH is responsible for decrease in GFR.
Choose the correct answer from the options given below:
Select the correct statements.
(a) Angiotensin II activates the cortex of adrenal gland to release aldosterone.
(b) Aldosterone leads to increase in blood pressure.
(c) ANF acts as a check on renin-angiotensin mechanism.
(d) ADH causes vasodilation.
(e) Vasopressin is released from adenohypophysis.
Choose the most appropriate answer from the options given below :
Nitrogenous waste is excreted in the form of pellet or paste by :
(a) Nitrogenous waste build-up in the body
(b) Non –elimination of excess potassium ions
(c) Reduced absorption of calcium ions from gastro-intestinal tract
(d) Reduced RBC production
Which of the following options is the most appropriate?
Column I | Column II |
---|---|
A. Glycosuria | (i) Accumulation of uric acid in joints |
B. Gout | (ii) Mass of crystallised salts within the kidney |
C. Renal calculi | (iii) Inflammation in glomeruli |
D. Glomerular nephritis | (iv) Presence of glucose in urine |
Column I (Function) |
Column II (Part of excretory system) |
---|---|
A. Ultrafiltration | (i) Henle’s loop |
B. Concentration of urine | (ii) Ureter |
C. Transport of urine | (iii) Urinary bladder |
D. Storage of urine | (iv) Malpighian corpuscle |
(v) Proximal convoluted tubule |