Succulents perform `CO_(2)` fixation

Options

A. `CAM` pathway
B. `C_(4)` pathway
C. `C_(3)` pathway
D. `C_(2)` pathway.

Answer

**Step-by-Step Solution:**

1. **Understanding Succulents**: Succulents are plants that have adapted to arid environments. They are known for their ability to store water in their leaves, stems, or roots.

2. **Photosynthesis in Succulents**: Unlike many plants that perform photosynthesis during the day, succulents have a unique adaptation. They close their stomata during the day to minimize water loss and open them at night to absorb carbon dioxide (CO₂).

3. **CO₂ Fixation Pathway**: The process by which succulents fix carbon dioxide is known as the CAM (Crassulacean Acid Metabolism) pathway. This pathway allows them to store CO₂ in the form of malate during the night.

4. **Utilization of Malate**: During the day, when sunlight is available, succulents convert the stored malate back into CO₂, which is then used in the Calvin cycle for photosynthesis.

5. **Conclusion**: Given the unique adaptations of succulents and their method of CO₂ fixation, the correct answer to the question is that succulents perform CO₂ fixation through the CAM pathway.

**Final Answer**: Succulents perform CO₂ fixation via the CAM pathway.

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