Statement A: Kreb's cycle takes place in the matrix of mitochondria. Statement B: TCA cycle is an amphibolic process.

Options

A. Only statement A is correct
B. Only statement B is correct
C. Both statements A and B are incorrect
D. Both statements A and B re correct

Answer

To analyze the given statements, we will break down each statement and evaluate its accuracy step by step.

**Step 1: Evaluate Statement A**
- Statement A claims that the Krebs cycle takes place in the matrix of mitochondria.
- The Krebs cycle, also known as the tricarboxylic acid (TCA) cycle, is indeed located in the mitochondrial matrix. This is where the enzymes and substrates necessary for the cycle are found, and it is the site of the biochemical reactions involved in cellular respiration.

**Conclusion for Step 1**: Statement A is true.

**Step 2: Evaluate Statement B**
- Statement B states that the TCA cycle is an amphibolic process.
- An amphibolic process is one that involves both anabolic (building up) and catabolic (breaking down) pathways. The TCA cycle fits this definition as it plays a crucial role in both the breakdown of carbohydrates, fats, and proteins (catabolism) to produce energy and the synthesis of certain biomolecules (anabolism).

**Conclusion for Step 2**: Statement B is also true.

**Final Conclusion**: Both Statement A and Statement B are correct.

**Answer**: Both Statement A and B are correct.

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