Which of the following plants is a better photosynthesiser ?

Options

A. Mango
B. Sugacane
C. Wheat
D. Rice

Answer

To determine which plant is a better photosynthesizer among the given options, we need to understand the differences between C3 and C4 plants and their efficiency in photosynthesis.

### Step-by-Step Solution:

1. **Identify Plant Types**:
- First, we need to identify the types of plants mentioned in the question. The options given are mango, sugarcane, wheat, and rice.
- Mango, wheat, and rice are C3 plants, while sugarcane is a C4 plant.

2. **Understand Photosynthesis Mechanisms**:
- C3 plants utilize the Calvin cycle for photosynthesis and are known to undergo photorespiration, which is a wasteful process that can reduce the efficiency of photosynthesis.
- C4 plants, on the other hand, have a specialized structure known as Kranz anatomy, which allows them to minimize photorespiration and thus be more efficient in photosynthesis.

3. **Efficiency Comparison**:
- C4 plants are generally considered to be more efficient at photosynthesis compared to C3 plants. They can perform photosynthesis effectively even under conditions of high temperature and light intensity.
- C4 plants can be up to 50% more efficient in photosynthesis than C3 plants due to their unique adaptations.

4. **Conclusion**:
- Given that sugarcane is a C4 plant and the others (mango, wheat, and rice) are C3 plants, we can conclude that sugarcane is the better photosynthesizer among the options provided.

### Final Answer:
The better photosynthesizer among the given options is **sugarcane** (C4 plant).

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