DP Biology (first assessment 2025)
Question 19M.1A.HL.TZ2.15
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.
