Which one of the following constitutes the reserve food material in the cyst of Entamoeba histolytica ?

Options

A. Volutin granules
B. Starch granules
C. Glycogen granules
D. Fat droplets

Answer

To answer the question regarding the reserve food material in the cyst of Entamoeba histolytica, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Organism**: Recognize that Entamoeba histolytica is a protozoan parasite that causes amoebic dysentery in humans. It has different life stages, including a cyst stage.

2. **Identify the Cyst Stage**: In the cyst stage, the organism is encased in a protective wall, which helps it survive in harsh environmental conditions outside the host.

3. **Know the Reserve Food Materials**: The cysts of Entamoeba histolytica contain various types of reserve food materials that the organism can utilize when it is in a favorable environment.

4. **Evaluate the Options**:
- **A. Volatile granules**: These are not typically associated with Entamoeba histolytica.
- **B. Starch granules**: While starch is a common reserve food in plants, it is not the primary reserve in Entamoeba histolytica.
- **C. Glycogen granules**: Glycogen is a polysaccharide that serves as a form of energy storage in many organisms, including protozoans.
- **D. Fat deposits like fat droplets**: Fat deposits are not the main reserve food material in this organism.

5. **Conclude the Answer**: Based on the information about the cyst of Entamoeba histolytica, the reserve food material is primarily in the form of **glycogen granules**.

### Final Answer:
The reserve food material in the cyst of Entamoeba histolytica is **C. Glycogen granules**.

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