NEET UG 2023 — Excretory Products and their Elimination

Zoology Excretory Products and their Elimination questions from NEET UG 2023.

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4 Excretory Products and their Elimination Questions from 2023

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 $\mathrm{Na}^{+}$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 :

medium

mcq

Given below are statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Nephrons are of two types: Cortical and 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:

medium

mcq

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 :

hard

mcq

Match List I and List II <table class="pyq-table"><tbody><tr><td></td><td>List I</td><td></td><td>List II</td></tr><tr><td>A</td><td>Taenia</td><td>I</td><td>Nephridia</td></tr><tr><td>B</td><td>Paramoecium</td><td>II</td><td>Contractile vacuole</td></tr><tr><td>C</td><td>Periplaneta</td><td>III</td><td>Flame cells</td></tr><tr><td>D</td><td>Pheretima</td><td>IV</td><td>Urecose gland</td></tr></tbody></table>Choose the correct answer from the options given below:

easy

mcq