CAPE Biology Unit 1 · 2007 (Specimen) · Paper 1 · Question Q28

Item 28 refers to the diagram below which shows the levels of various hormones involved in the menstrual cycle in human females. Which ONE of the following is the most accurate deduction that can be made from the diagram?

1. (A)Q at high concentrations stimulates Y.
2. (B)P at high concentrations stimulates Y.
3. (C)P at low concentrations stimulates X.
4. (D)Q at low concentrations inhibits X.

This question uses a figure or table from the paper — you'll see it when you practise.