Rate of photosynthesis is

Options

A. Equal to that of respiration
B. Less than that of respiration
C. Depends upon chlorophyll content
D. Faster than that of respiration.

Answer

### Step-by-Step Solution:

1. **Understanding Photosynthesis**:
- Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy, specifically glucose, using carbon dioxide and water.

2. **Understanding Respiration**:
- Respiration is the process by which living organisms break down glucose to release energy, which is stored in the form of ATP (adenosine triphosphate).

3. **Comparison of Rates**:
- The rate of photosynthesis refers to how quickly plants can produce glucose from sunlight, carbon dioxide, and water.
- The rate of respiration refers to how quickly organisms can break down glucose to release energy.

4. **Analyzing the Options**:
- The options given are:
- Equal to that of respiration
- Less than that of respiration
- Depends upon chlorophyll content
- Faster than that of respiration

5. **Determining the Correct Option**:
- Photosynthesis generally occurs at a faster rate than respiration because it requires less substrate (raw materials) compared to the amount needed for respiration.
- While chlorophyll content can influence the rate of photosynthesis, it does not change the fundamental relationship between the rates of photosynthesis and respiration.

6. **Conclusion**:
- Therefore, the correct answer is that the rate of photosynthesis is **faster than that of respiration**.