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Question 19M.1A.HL.TZ2.15

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.HL.TZ2.15
Level HL Paper 1A Time zone TZ2
Command term Identify Question number 15 Adapted from N/A
15.
[Maximum mark: 1]
19M.1A.HL.TZ2.15

The diagram shows compounds in the Krebs cycle labelled as X, Y and Z.

[Source: © International Baccalaureate Organization 2019]

How many carbon atoms are there in Y and in the acetyl group of acetyl CoA?

[1]

Markscheme

A

Examiners report

This question was easy and discriminated very well.