ExpertEasy1 markMultiple Choice
AQA GCSE · Question 06.4 · Homeostasis and Response
During hibernation:
- the echidna sleeps
- the echidna's body temperature decreases to below 5 °C
- the echidna uses food stored in its body cells to provide energy.
What process releases energy from stored food?
During hibernation:
- the echidna sleeps
- the echidna's body temperature decreases to below 5 °C
- the echidna uses food stored in its body cells to provide energy.
What process releases energy from stored food?
Answer options:
A.
Diffusion
B.
Excretion
C.
Respiration
How to approach this question
Recall the main life processes. The question asks for the process that releases energy from food (like glucose or fat stores). Consider the function of diffusion, excretion, and respiration to identify the correct term.
Full Answer
C.Respiration✓ Correct
Respiration
Respiration is the fundamental process in all living cells that releases energy from food molecules. Stored food, such as fat or glycogen, is broken down into molecules like glucose, which are then used in cellular respiration. The energy released is used to power all other life processes.
Common mistakes
✗ Confusing respiration with breathing.
✗ Choosing another life process like excretion or diffusion.
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