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Question 18M.1.SL.TZ2.28

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.1.SL.TZ2.28
Level SL Paper 1 Time zone TZ2
Command term Question number 28 Adapted from N/A
28.
[Maximum mark: 1]
18M.1.SL.TZ2.28

What is the role of type II pneumocytes?

A. To carry out gas exchange

B. To keep the alveoli moist

C. To increase surface tension

D. To maintain partial pressures of gases

[1]

Markscheme

B

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