Stems of which plant contain chlorophyll & become flat to carry out photosynthesis ?

Options

A. Ginger
B. Turmeric
C. Opuntia
D. Colocasia

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for plants whose stems contain chlorophyll and are flat to perform photosynthesis.

2. **Identifying Plant Types**: The plants that typically have adaptations for photosynthesis in their stems are often found in arid (dry) regions. These adaptations are necessary for survival in environments where water is scarce.

3. **Recognizing Specific Examples**: One prominent example of such a plant is *Opuntia*, commonly known as the prickly pear cactus. This plant has adapted to its environment by modifying its stem.

4. **Describing the Adaptation**: In *Opuntia*, the stems are flattened and fleshy, allowing them to carry out photosynthesis. The leaves of these plants have evolved into spines to reduce water loss through transpiration.

5. **Terminology**: The modified stems that perform photosynthesis are referred to as "phylloclades." This term specifically describes the flattened stems that take over the photosynthetic function typically performed by leaves.

6. **Conclusion**: Based on the adaptations and characteristics discussed, the answer to the question is *Opuntia*.

**Final Answer**: The stems of the plant *Opuntia* contain chlorophyll and become flat to carry out photosynthesis.

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