The light harvesting complex in light reaction is

Options

A. one molecule of chlorophyll-a
B. very few molecules of chlorophyll-a
C. hundreds of proteins of thylakoid membrane
D. Chlorophyll-a + chlorophyll-b+protein+ DNA

Answer

**Step-by-Step Solution:**

1. **Understanding the Light Harvesting Complex (LHC):**
- The light harvesting complex is a crucial component of the photosynthetic process, specifically in the light reactions. It is responsible for capturing light energy and transferring it to the reaction center.

2. **Components of the Light Harvesting Complex:**
- The LHC consists of various pigments, primarily chlorophyll a and chlorophyll b, along with proteins. These components work together to absorb light energy.

3. **Location of the Light Harvesting Complex:**
- The light harvesting complex is embedded in the thylakoid membrane, which is found in the chloroplasts of plants and in cyanobacteria.

4. **Function of the Light Harvesting Complex:**
- The primary function of the LHC is to capture light energy and funnel it to the reaction center, where it can be used to drive the photosynthetic process.

5. **Analyzing the Options:**
- Option A: "One molecule of chlorophyll A is present" - This is incorrect as the LHC contains multiple molecules.
- Option B: "There are very few molecules in which chlorophyll A is present" - This is also incorrect as there are many molecules involved.
- Option C: "There are hundreds of proteins of thylakoid membrane" - This is correct as the LHC is composed of numerous proteins and pigments.
- Option D: "Chlorophyll A, chlorophyll B, protein and DNA are present" - This is partially correct but includes DNA, which is not a component of the LHC.

6. **Conclusion:**
- Based on the analysis, the correct answer is Option C: "There are hundreds of proteins of thylakoid membrane."