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Date November 2017 Marks available 1 Reference code 17N.1.SL.TZ0.26
Level Standard level Paper Paper 1 Time zone TZ0 / no time zone
Command term Identify Question number 26 Adapted from N/A

Question

What is a characteristic of antigens?

A. They recognize foreign substances

B. They are produced in bone marrow

C. They cause disease in humans

D. They stimulate the production of antibodies

Markscheme

D

Examiners report

[N/A]

Syllabus sections

Core » Topic 6: Human physiology » 6.3 Defence against infectious disease
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