How many ATP molecules will be generated in a plant system during complet oxidation of 40 molecules of glucose?

Options

A. 180
B. 360
C. 1440
D. 3040

Explanation

To determine how many ATP molecules will be generated during the complete oxidation of 40 molecules of glucose in a plant system, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the ATP Yield from One Glucose Molecule:**
- The complete oxidation of one molecule of glucose typically yields 38 ATP molecules. However, during the process, 2 ATP molecules are used up, resulting in a net gain of 36 ATP molecules.

2. **Calculate ATP from 40 Glucose Molecules:**
- Since one molecule of glucose yields 36 ATP, we can calculate the total ATP from 40 molecules of glucose.
- Total ATP = Number of glucose molecules × ATP yield per glucose
- Total ATP = 40 × 36 = 1440 ATP molecules.

3. **Verification of Calculation:**
- Alternatively, we can calculate the total ATP produced before accounting for the 2 ATP used.
- Total ATP without accounting for usage = 40 × 38 = 1520 ATP.
- Since 2 ATP are used for each glucose molecule, for 40 glucose molecules, the total ATP used would be 40 × 2 = 80 ATP.
- Therefore, the net ATP after accounting for the used ATP = 1520 - 80 = 1440 ATP.

4. **Final Answer:**
- Thus, the total number of ATP molecules generated during the complete oxidation of 40 molecules of glucose is **1440 ATP molecules**.