A total A quanta (phtons) of light are required to transfer B electrons form C molecules of water to D molecules of NADP and F molecule of oxygen in non cylcic e transport of light phase of photosynthesis A,B,C,DE,F respectively are :

Options

A. 8,4,2,2,1
B. 4,2,1,1,2,1/2
C. 4,4,2,2,2,1/2
D. 8,4,2,2,1,1/2

Answer

To solve the question regarding the values of A, B, C, D, E, and F in the context of non-cyclic electron transport during photosynthesis, we can break it down step by step:

### Step-by-Step Solution:

1. **Understanding the Process**:
- Non-cyclic electron transport involves the transfer of electrons from water molecules to NADP+ and results in the production of oxygen.

2. **Determining the Value of F**:
- The question states that F is the number of oxygen molecules produced. In non-cyclic electron transport, one molecule of oxygen (O2) is produced from the splitting of water.
- Therefore, **F = 1**.

3. **Determining the Value of A**:
- To produce one molecule of oxygen (F = 1), 8 photons (quanta of light) are required. This is based on the fact that it takes 8 photons to facilitate the transfer of electrons necessary for the splitting of water.
- Therefore, **A = 8**.

4. **Determining the Value of B**:
- The production of one molecule of oxygen involves the transfer of 4 electrons. These electrons come from the splitting of 2 water molecules (2 H2O).
- Therefore, **B = 4**.

5. **Determining the Value of C**:
- Since 4 electrons are derived from the splitting of 2 water molecules, we can conclude that the number of water molecules (C) involved is 2.
- Therefore, **C = 2**.

6. **Determining the Value of D**:
- Each NADP+ molecule accepts 2 electrons. Since we are transferring 4 electrons, this means that 2 NADP+ molecules are reduced.
- Therefore, **D = 2**.

7. **Determining the Value of E**:
- The question does not specify a value for E, and based on the context, it seems that E is not applicable or is not needed for this particular question.
- Therefore, **E = 0 or not applicable**.

### Final Values:
- A = 8 (quanta of light)
- B = 4 (electrons)
- C = 2 (molecules of water)
- D = 2 (molecules of NADP)
- E = 0 (not applicable)
- F = 1 (molecule of oxygen)

### Summary:
- A = 8
- B = 4
- C = 2
- D = 2
- E = 0 (not applicable)
- F = 1