DP Biology (first assessment 2025)

Test builder »

Question 22M.1A.SL.TZ1.25

Select a Test
Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1A.SL.TZ1.25
Level SL Paper 1A Time zone TZ1
Command term Question number 25 Adapted from N/A
25.
[Maximum mark: 1]
22M.1A.SL.TZ1.25

Which structures are part of the walls of both capillaries and veins?

I. Cells

II. Pores

III. Elastic fibres

A. I only

B. I and II

C. I and III

D. I, II and III

[1]

Markscheme

A

Examiners report

This was another question where fewer candidates answered correctly than the guess-level of 25%. The most popular choice had elastic fibres as a feature of both capillaries and veins. This indicates that many candidates' knowledge of the structure of blood vessels was weak.

Syllabus sections