What is the net consumption of ATP and NADPH for every `CO_(2)` molecule fixed in ` C_(4)` plants ?

Explanation

To determine the net consumption of ATP and NADPH for every CO₂ molecule fixed in C₄ plants, we need to understand the C₄ photosynthetic pathway, which involves two main stages: the fixation of CO₂ in mesophyll cells and the subsequent Calvin cycle occurring in bundle sheath cells.

### Step-by-Step Solution:

1. **Understanding the C₄ Pathway**:
- C₄ plants initially fix CO₂ into a four-carbon compound (oxaloacetate) in mesophyll cells. This is done using the enzyme phosphoenolpyruvate carboxylase (PEP carboxylase).
- The four-carbon compound is then converted to malate or aspartate, which is transported to bundle sheath cells.

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