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Edexcel IGCSE Biology 2.94 Adrenaline Insulin and Reproductive Hormones Questions

Compare insulin, adrenaline and reproductive hormones by their sources and effects on blood glucose, danger responses and sexual development.

Syllabus
First assessment 2019
Course
Biology 4BI1

Exam points

  • Explain how insulin from the pancreas lowers blood glucose by promoting glycogen storage in liver or muscle.
  • Describe adrenaline production by the adrenal glands and explain fight-or-flight effects on heart rate, muscle blood flow, pupils and blood glucose.
  • Identify the testes as the source of testosterone and link testosterone to male secondary sexual development.
  • Identify progesterone source and role in maintaining the uterus lining.

Edexcel IGCSE Biology 2.94 Adrenaline Insulin and Reproductive Hormones Questions question 1

[Maximum number: 1]

Animals produce hormones to communicate between cells.

Which hormone causes an increased blood flow to the muscles during exercise?

A

adrenaline

B

insulin

C

progesterone

D

testosterone

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