Question

name at least 3 differences between cellular respiration & fermentation.

Explanation:

To identify differences, we analyze key aspects:

1. Oxygen Requirement: Cellular respiration (CR) uses oxygen (aerobic), fermentation is anaerobic (no oxygen).
2. Energy Yield: CR produces ~36 - 38 ATP per glucose; fermentation yields 2 ATP.
3. End Products: CR produces \( \text{CO}_2 \) and \( \text{H}_2\text{O} \); fermentation (e.g., lactic acid or alcoholic) produces lactic acid/ethanol + \( \text{CO}_2 \).

Answer:

1. Oxygen Requirement: Cellular Respiration is aerobic (needs \( \text{O}_2 \)), Fermentation is anaerobic (no \( \text{O}_2 \)).
2. Energy Yield: Cellular Respiration produces ~36–38 ATP per glucose, Fermentation produces 2 ATP.
3. End Products: Cellular Respiration yields \( \text{CO}_2 + \text{H}_2\text{O} \); Fermentation (e.g., lactic acid) yields lactic acid (or ethanol + \( \text{CO}_2 \) in alcoholic fermentation).