In `C_(4)` plants, sugar is produced in

Options

A. Bundle sheath cells
B. mesophyll cells
C. palisade leaf cells
D. spongy mesophyll

Answer

### Step-by-Step Solution:

1. **Understanding C4 Plants**: C4 plants are adapted to dry tropical regions and possess a unique anatomical structure known as Kranz anatomy. This structure features multiple layers of cells surrounding the vascular bundles and is characterized by a high density of chloroplasts.

2. **Photosynthesis Process**: In C4 plants, photosynthesis occurs in two distinct types of cells: mesophyll cells and bundle sheath cells. The initial carbon fixation occurs in the mesophyll cells, where carbon dioxide is combined with phosphoenolpyruvate (PEP) to form oxaloacetic acid (a C4 acid).

3. **Conversion of C4 Acids**: The oxaloacetic acid is then converted into malic acid and aspartic acid, which are transported into the bundle sheath cells.

4. **Decarboxylation**: Inside the bundle sheath cells, the C4 acids undergo decarboxylation, releasing carbon dioxide. This released carbon dioxide is then used in the Calvin cycle (C3 cycle).

5. **Calvin Cycle in Bundle Sheath Cells**: The Calvin cycle, which occurs in the bundle sheath cells, involves three main steps: carboxylation, reduction, and regeneration. During this cycle, sugars are synthesized, specifically glucose.

6. **Conclusion**: Therefore, in C4 plants, sugar (glucose) is produced in the bundle sheath cells through the Calvin cycle.

### Final Answer:
In C4 plants, sugar is produced in the **bundle sheath cells**.

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