User interface language: English | Español

Date November 2016 Marks available 1 Reference code 16N.1.SL.TZ0.29
Level Standard level Paper Paper 1 Time zone TZ0
Command term Identify Question number 29 Adapted from N/A

Question

Which hormone controls circadian rhythms?

A. Thyroxin
B. Melatonin
C. Leptin
D. Glucagon

Markscheme

B

Examiners report

[N/A]

Syllabus sections

Core » Topic 6: Human physiology » 6.6 Hormones, homeostasis and reproduction
Show 162 related questions

View options