The ration of chlorophyll a to chlorphyll b in flowering plants is

Options

A. `1.5:1`
B. `0.5:1.5`
C. `2.5-3.5:1`
D. `5.5:1`

Answer

To determine the ratio of chlorophyll a to chlorophyll b in flowering plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Chlorophylls**:
- Chlorophyll a is the primary pigment involved in photosynthesis, while chlorophyll b is an accessory pigment that assists in capturing light energy.

2. **Identify the Chemical Structures**:
- Chlorophyll a has the chemical formula C55H72O5N4Mg.
- Chlorophyll b has the chemical formula C55H70O6N4Mg.
- Note that both chlorophylls share a similar structure but differ slightly in their chemical composition.

3. **Analyze the Ratio**:
- In flowering plants, chlorophyll a is more abundant than chlorophyll b. The typical ratio of chlorophyll a to chlorophyll b is approximately 3:1.

4. **Conclusion**:
- Therefore, the ratio of chlorophyll a to chlorophyll b in flowering plants is 3:1.

5. **Select the Correct Answer**:
- Based on the options provided, the correct answer is option 3, which states the ratio as approximately 2.5 to 3.5 to 1, aligning with the typical 3:1 ratio.