3
QuizMultiple Choice

Cellular Respiration

Question 3 • Basic Biology S2

How does cellular respiration explain why animals breathe rapidly when they are running?

Answer
A
Energy is used up while running, and cellular respiration needs oxygen to produce more energy.
B
Energy is used up while running, and cellular respiration needs carbon dioxide to produce more energy.
C
Glucose is used up while running, and cellular respiration needs oxygen to make glucose.
D
Glucose is used up while running, and cellular respiration needs carbon dioxide to make glucose.

Explanation

Running makes muscles use ATP rapidly, so they need cellular respiration to release more energy from glucose. Cellular respiration uses oxygen, and faster breathing brings more oxygen to the body. Carbon dioxide is a waste product of this process, not a substance needed to produce energy.

AI-written and checked against the verified answer.

Previous
Next