The `C_(4) and C_(3)` plants differ from each other in

Options

A. Type of pigment involved in pholosythesis
B. The primary acceptor of ` CO_(2)` during carbon fixation
C. Type of end products of photosynthesis
D. Number of NADPH that are consumed during the starch synthesis process.

Answer

### Step-by-Step Solution:

1. **Understanding C3 and C4 Plants**:
- C3 and C4 plants are two different types of plants that utilize different pathways for photosynthesis. The primary distinction lies in how they fix carbon dioxide.

2. **Photosynthetic Pigments**:
- Both C3 and C4 plants use chlorophyll as the primary pigment for photosynthesis. Therefore, the type of pigment does not differ between them.

3. **Carbon Dioxide Fixation**:
- In C3 plants, the enzyme responsible for the initial fixation of carbon dioxide is called RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase).
- In contrast, C4 plants use a different enzyme called phosphoenolpyruvate carboxylase (PEP carboxylase) for the initial fixation of carbon dioxide.

4. **Location of Photosynthesis**:
- In C3 plants, photosynthesis primarily occurs in the mesophyll cells.
- In C4 plants, photosynthesis occurs in both mesophyll cells and bundle sheath cells, which is a characteristic feature known as Kranz anatomy.

5. **End Products of Photosynthesis**:
- The end product of photosynthesis (glucose) is the same in both C3 and C4 plants, so this does not differentiate them.

6. **NADPH Consumption**:
- The amount of NADPH consumed during the synthesis of starch is similar in both types of plants, making this another non-differentiating factor.

### Conclusion:
C3 and C4 plants differ primarily in the enzyme used for carbon fixation (RuBisCO in C3 vs. PEP carboxylase in C4) and the anatomical structure (Krantz anatomy in C4).