In desert plant Opuntia photosynthetic function is taken over by

Options

A. Leaves
B. Roots
C. Stems
D. Flowers

Answer

To answer the question regarding which part of the desert plant Opuntia takes over the photosynthetic function, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Plant**: Recognize that Opuntia is a type of cactus commonly found in desert environments.

2. **Understand the Environment**: Note that desert plants like Opuntia are adapted to survive in arid conditions where water is scarce.

3. **Examine the Structure**: In Opuntia, the leaves are either absent or modified into spines. This adaptation helps reduce water loss, which is crucial in desert conditions.

4. **Determine Photosynthetic Function**: Since the leaves are modified and not performing photosynthesis, we need to identify which part of the plant is responsible for this function.

5. **Identify the Modified Structure**: In Opuntia, the stems are modified into structures known as phylloclades. These phylloclades are flat and perform the photosynthetic function typically carried out by leaves.

6. **Conclusion**: Therefore, in the desert plant Opuntia, the photosynthetic function is taken over by the modified stems (phylloclades).

### Final Answer:
In desert plant Opuntia, the photosynthetic function is taken over by the **stems** (specifically modified stems known as phylloclades).

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