DP Biology (first assessment 2025)

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Question 19N.1A.SL.TZ0.22

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.1A.SL.TZ0.22
Level SL Paper 1A Time zone TZ0
Command term Determine Question number 22 Adapted from N/A
22.
[Maximum mark: 1]
19N.1A.SL.TZ0.22

How does HIV affect the immune system adversely?

A. Progressive reduction in number of active lymphocytes

B. Continuous overproduction of antibodies

C. Rapid production of clone of plasma cells

D. Immediate development of AIDS

[1]

Markscheme

A

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