User interface language: English | Español

Date May 2019 Marks available 1 Reference code 19M.1.HL.TZ2.15
Level Higher level Paper Paper 1 Time zone Time zone 2
Command term Identify Question number 15 Adapted from N/A

Question

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?

Markscheme

A

Examiners report

This question was easy and discriminated very well.

Syllabus sections

Additional higher level » Topic 8: Metabolism, cell respiration and photosynthesis » 8.2 Cell respiration
Show 37 related questions
Additional higher level » Topic 8: Metabolism, cell respiration and photosynthesis
Additional higher level

View options