In some prokaryotes, some membranous extensions are present in the cytoplasm which contain pigments , known as ....

Options

A. Mesosomes
B. Volutin
C. Chromatophore
D. Chromatids

Answer

To solve the question regarding the membranous extensions in prokaryotes that contain pigments, we will analyze the options provided and determine the correct answer step by step.

### Step 1: Understand the Question
The question asks about membranous extensions in prokaryotes that contain pigments. We need to identify what these extensions are called from the given options.

### Step 2: Analyze the Options
The options provided are:
1. Mesosomes
2. Volutine
3. Chromatophore
4. Chromatids

### Step 3: Evaluate Each Option
- **Mesosomes**: These are infoldings of the bacterial cell membrane that increase surface area and are rich in enzymes. However, they do not contain pigments responsible for photosynthesis.

- **Volutine**: This refers to granules found in the cytoplasm of prokaryotes that are rich in phosphorus. They do not contain pigments.

- **Chromatophore**: These are membranous structures found in some prokaryotes, such as cyanobacteria. They contain chlorophyll pigments and are involved in photosynthesis. This matches the description in the question.

- **Chromatids**: These are not related to prokaryotic structures but are instead one half of a replicated chromosome during cell division. This option is irrelevant to the question.

### Step 4: Identify the Correct Answer
Based on the analysis, the correct answer is **Chromatophore**. These structures contain pigments (like chlorophyll) and are involved in the process of photosynthesis in certain prokaryotes.

### Step 5: Conclusion
The membranous extensions in prokaryotes that contain pigments are known as **Chromatophores**.

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