Chlorophyll of prokaryotes found on :-

Options

A. Thylakoids
B. Granum
C. Thylakoids and granum
D. Plasma membrane

Answer

**Step-by-Step Solution:**

1. **Understanding Prokaryotes**: Prokaryotes are unicellular organisms that lack membrane-bound organelles, including chloroplasts, which are typically found in eukaryotic cells.

2. **Photosynthesis in Prokaryotes**: In prokaryotic organisms that perform photosynthesis, such as cyanobacteria, the process does not occur in chloroplasts, as these organisms do not possess them.

3. **Role of Plasma Membrane**: Instead of chloroplasts, prokaryotes utilize their plasma membrane for photosynthesis. The plasma membrane has special structures that facilitate this process.

4. **Infoldings in Plasma Membrane**: The plasma membrane of photosynthetic prokaryotes has infoldings known as thylakoids. These structures are crucial for the attachment of chlorophyll.

5. **Chlorophyll Attachment**: Chlorophyll is attached to these thylakoids within the plasma membrane. This attachment is essential for the light-dependent reactions of photosynthesis to occur.

6. **Conclusion**: Therefore, in prokaryotes, chlorophyll is found in the thylakoids, which are infoldings of the plasma membrane. Thus, the answer to the question is that chlorophyll of prokaryotes is found on thylakoids.

**Final Answer**: Thylakoids

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