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Multiple Choice
How does cellular respiration differ from lactic acid fermentation in terms of energy production?
A
Neither process produces ATP.
B
Lactic acid fermentation produces more ATP than cellular respiration.
C
Cellular respiration produces more ATP than lactic acid fermentation.
D
Both processes produce the same amount of ATP.
Verified step by step guidance
1
Understand the basic concepts: Cellular respiration is a metabolic process that converts glucose into ATP using oxygen, while lactic acid fermentation is an anaerobic process that occurs when oxygen is scarce.
Identify the main stages of cellular respiration: Glycolysis, Krebs cycle (Citric Acid Cycle), and Electron Transport Chain. Each stage contributes to ATP production.
Recognize that lactic acid fermentation involves only glycolysis, followed by the conversion of pyruvate into lactic acid, which regenerates NAD+ but produces minimal ATP.
Compare ATP yield: Cellular respiration can produce up to 36-38 ATP molecules per glucose molecule, whereas lactic acid fermentation yields only 2 ATP molecules per glucose molecule.
Conclude that cellular respiration is more efficient in ATP production compared to lactic acid fermentation, which is why the correct answer is that cellular respiration produces more ATP than lactic acid fermentation.