Select the wrong statement :

Options

A. When tripalmitin is used as a substrate in respiration the R.Q. is 0.7.
B. The intermediate compound which links glycolysis with Kreb's cycle is malic acid
C. One glucose molecule yields a net gain of 36 ATP molecules during aerobic respiration
D. One glucose molecule yields a net gain of 2 ATP molecules during fermentation

Answer

To solve the question of selecting the wrong statement regarding respiration in plants, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement 1: "When tripalmitin is used as the substrate in respiration, the RQ is 0.7."**
- RQ (Respiratory Quotient) is defined as the ratio of carbon dioxide produced to the oxygen consumed during respiration. For fats, such as tripalmitin, the RQ is indeed around 0.7.
- **Conclusion:** This statement is **correct**.

2. **Statement 2: "The intermediate compound which links glycolysis with the Krebs cycle is malic acid."**
- The compound that links glycolysis to the Krebs cycle is Acetyl-CoA, not malic acid. Malic acid is actually part of the Krebs cycle but does not serve as the linking compound.
- **Conclusion:** This statement is **incorrect**.

3. **Statement 3: "One glucose molecule yields a net gain of 36 ATP molecules during aerobic respiration."**
- During aerobic respiration, one molecule of glucose can yield a net gain of approximately 36 ATP molecules. This includes ATP produced during glycolysis, the Krebs cycle, and oxidative phosphorylation.
- **Conclusion:** This statement is **correct**.

4. **Statement 4: "One glucose molecule yields a net gain of 2 ATP molecules during fermentation."**
- During fermentation, one molecule of glucose yields a net gain of 2 ATP molecules. This is true for processes like alcoholic fermentation and lactic acid fermentation.
- **Conclusion:** This statement is **correct**.

### Final Answer:
The wrong statement is **Statement 2**: "The intermediate compound which links glycolysis with the Krebs cycle is malic acid."