User interface language: English | Español

Date May 2016 Marks available 1 Reference code 16M.1.SL.tz0.15
Level Standard Level Paper Paper 1 Time zone time zone 0
Command term Which Question number 15 Adapted from N/A

Question

Which of the following are features of the ATP-CP system?

I. It provides the energy for the first three minutes of activity.

II. CP is broken down to provide a phosphate molecule.

III. It creates lactic acid as a by-product.

A. I only

B. II only

C. I and II only

D. II and III only

Markscheme

B

Examiners report

A more difficult question, with D as the main distractor and C as another distractor. More candidates chose D than B (correct response).

Syllabus sections

Topic 3: Energy systems » 3.3. Nutrition and energy systems » 3.3.6. Describe the re-synthesis of ATP by the ATP–CP system.
Topic 3: Energy systems » 3.3. Nutrition and energy systems
Topic 3: Energy systems

View options