Eye spot granules of Euglena are formed of

Options

A. Fucoxanthin
B. Astaxanthin
C. `alpha` -carotens
D. `beta` carotene.

Answer

To determine the composition of the eye spot granules of Euglena, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Organism**:
- Euglena is a unicellular organism that exhibits characteristics of both plants and animals. It belongs to the kingdom Protista and is classified as a eukaryote.

2. **Identify the Function of the Eye Spot**:
- The eye spot in Euglena functions as a photoreceptor, which means it is involved in detecting light. This ability is crucial for the organism's movement towards light sources (phototaxis).

3. **Know the Pigments Involved**:
- The eye spot contains pigments that are responsible for light detection. These pigments are primarily carotenoids, which are classified into two main types: carotene and xanthophyll.

4. **Differentiate Between Types of Carotenoids**:
- Carotene can be further divided into alpha carotene and beta carotene. Xanthophylls are another category of carotenoids that include various pigments.

5. **Identify the Specific Pigment in Euglena**:
- The specific pigment present in the eye spot of Euglena is a type of xanthophyll. According to the information, the pigment that is specifically found in the eye spot of Euglena is astaxanthin.

6. **Select the Correct Option**:
- Based on the analysis, the correct answer to the question is option B: astaxanthin.

### Final Answer:
The eye spot granules of Euglena are formed of **astaxanthin**.

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