Which gas is essential for aerobic cellular respiration?
A
Carbon dioxide
B
Oxygen
C
Nitrogen
D
Hydrogen
Correct Answer: Option B — Oxygen
Explanation:
Oxygen is required in aerobic respiration to efficiently break down glucose and release energy in the form of ATP. Without sufficient oxygen...
Oxygen is required in aerobic respiration to efficiently break down glucose and release energy in the form of ATP. Without sufficient oxygen, cells must rely on less efficient anaerobic pathways, producing far less usable energy.