DP Biology (first assessment 2025)

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Question 22M.1A.HL.TZ2.39

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1A.HL.TZ2.39
Level HL Paper 1A Time zone TZ2
Command term Question number 39 Adapted from N/A
39.
[Maximum mark: 1]
22M.1A.HL.TZ2.39

The micrograph shows a glomerulus and Bowman’s capsule, where ultrafiltration takes place in the kidney.

[Source: MICROSCAPE/SCIENCE PHOTO LIBRARY.]

 

What facilitates the formation of glomerular filtrate?

A. Many fenestrations in walls of capillaries in the glomerulus

B. High pressure in the Bowman’s capsule

C. ADH secreted by the pituitary gland

D. Osmosis caused by a high concentration of urea in the blood

[1]

Markscheme

A

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