The Question is from neet-botany respiration-in-plants , and it was created by the author Mr. NARESH KUMAR K

Question

During aerobic respiration, the maximum number of ATP molecules are generated during which stage?

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
 **Primary Concept**: Aerobic Respiration and ATP Production
 **Related Topics**: Glycolysis, Krebs cycle, Oxidative Phosphorylation, Electron Transport Chain
 **Prerequisites**: Understanding of cellular respiration stages and ATP synthesis.
## SOLUTION PATHWAY
**Given Information**:
  The question asks about the stage of aerobic respiration that produces the most ATP.
**Method & Steps**:
 1. Analyze each stage's ATP production:
  Glycolysis produces a net of 2 ATP molecules.
  Krebs cycle produces 2 ATP molecules per glucose molecule.
  Oxidative phosphorylation (Electron Transport Chain) produces the majority of ATP molecules through chemiosmosis.
  Link reaction does not directly produce ATP.
 2. Compare ATP yields:
  Glycolysis: 2 ATP
  Krebs cycle: 2 ATP
  Oxidative phosphorylation: Approximately 32-34 ATP
  Link reaction: 0 ATP
 3. Identify the stage with maximum ATP production:
  Oxidative phosphorylation generates significantly more ATP than the other stages.
  Result: Oxidative phosphorylation
  Verification: The high ATP yield in oxidative phosphorylation is due to the electron transport chain and the proton gradient driving ATP synthase.
 ## OPTION ANALYSIS
A :x: Glycolysis produces only a small amount of ATP (2 molecules).
B :x: The Krebs cycle produces only a small amount of ATP (2 molecules).
C ✓: Oxidative phosphorylation is responsible for the majority of ATP production during aerobic respiration (approximately 32-34 ATP molecules).
D :x: The link reaction doesn't directly produce ATP; it prepares pyruvate for entry into the Krebs cycle.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the ATP yield of different stages: Remember the relative ATP yields of glycolysis, Krebs cycle, and oxidative phosphorylation.
  2.Ignoring the role of the electron transport chain: The electron transport chain is crucial for the high ATP yield of oxidative phosphorylation.
 **Quick Tips**:
  1.Focus on the relative ATP production in each stage.
  2.Remember that oxidative phosphorylation is the major ATP producer in aerobic respiration.

Mr. NARESH KUMAR K · Answer

Glycolysis

Mr. NARESH KUMAR K · Answer

Krebs cycle

Mr. NARESH KUMAR K · Answer

The correct Option is "Oxidative phosphorylation"

Mr. NARESH KUMAR K · Answer

Link reaction

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