The Question is from neet-botany respiration-in-plants introduction, and it was created by the author NISHANTH

Question

Which of the following reaction does not take place in the cell organelle, that is referred to as ‘Power house of the cell’?

NISHANTH · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
**Primary Concept**: Cellular Respiration and Mitochondrial Function
**Related Topics**: Glycolysis, Krebs Cycle (Citric Acid Cycle), Electron Transport Chain, Mitochondrial Matrix, Inner Mitochondrial Membrane
**Prerequisites**: Basic knowledge of cellular respiration and the location of its different stages within the cell.
## SOLUTION PATHWAY
**Given Information**:
* The question asks for a reaction that *does not* occur in the 'powerhouse of the cell' (mitochondria).
**Method & Steps**:
1. **Identify the powerhouse**: The powerhouse of the cell is the mitochondria.
    Reasoning: This is a fundamental concept in cell biology.
2. **Analyze each option**: Determine if the given reactions occur within the mitochondria.
   * A. **Glycine Decarboxylation**: This occurs in the mitochondrial matrix.
   * B. **Glyceraldehyde 3-phosphate dehydrogenation**: This is part of glycolysis, which takes place in the cytoplasm.
   * C. **Fumaric acid hydration**: This is part of the Krebs cycle (Citric Acid Cycle), which occurs in the mitochondrial matrix.
   * D. **Cytochrome oxidation**: This is part of the electron transport chain, which occurs in the inner mitochondrial membrane.
3. **Identify the reaction outside the mitochondria**: The only reaction that doesn't take place in the mitochondria is Glyceraldehyde 3-phosphate dehydrogenation.

## OPTION ANALYSIS
[A] :x: Glycine decarboxylation occurs in the mitochondria.
[B] ✓: Glyceraldehyde 3-phosphate dehydrogenation is part of glycolysis, which occurs in the cytoplasm, not the mitochondria.
[C] :x: Fumaric acid hydration is a step in the Krebs cycle within the mitochondria.
[D] :x: Cytochrome oxidation is part of the electron transport chain in the mitochondria.
## LEARNING AIDS
**Common Mistakes**:
1. Confusing Glycolysis with Krebs Cycle: Glycolysis occurs in the cytoplasm, while the Krebs cycle occurs in the mitochondrial matrix.
2. Not knowing the location of the electron transport chain: It occurs in the inner mitochondrial membrane.
**Quick Tips**:
1. Remember that glycolysis is the first stage of cellular respiration and takes place outside the mitochondria.
2. Associate the Krebs cycle and electron transport chain with the mitochondria.

NISHANTH · Answer

Glycine Decarboxylation

NISHANTH · Answer

The correct Option is "Glyceraldehyde 3-phosphate dehydrogenation"

NISHANTH · Answer

Fumaric acid hydration

NISHANTH · Answer

Cytochrome oxidation

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