The proteinaceous layer called pellicle and two flagella one long and one short are seen in organisms which are

Options

A. unicellular , prokaryotic and are photosynthetic as well as heterotrophic
B. unicellular , prokarytic and are heterotrophic
C. unicellular , eukaryotic and are photosynthetic as well as heterotrophic
D. unicellular , eukaryotic and are heterotrophic

Answer

To solve the question regarding the proteinaceous layer called pellicle and the presence of two flagella (one long and one short) in certain organisms, let's break down the information step by step.

### Step-by-Step Solution:

1. **Understanding the Terms**:
- **Pellicle**: This is a flexible proteinaceous layer found in some microorganisms, providing shape and support.
- **Flagella**: These are whip-like structures that aid in movement. In this context, one flagellum is long and the other is short.

2. **Identifying the Organism**:
- The description provided in the question closely matches **Euglena**, a genus of unicellular organisms.
- Euglena is known for having a pellicle and two flagella (one long and one short).

3. **Characteristics of Euglena**:
- **Unicellular**: Euglena consists of a single cell.
- **Eukaryotic**: It has a complex cell structure with a nucleus.
- **Photosynthetic and Heterotrophic**: Euglena can perform photosynthesis due to the presence of chloroplasts, but it can also absorb nutrients from its environment when light is not available.

4. **Evaluating the Options**:
- **Option 1**: Unicellular, Prokaryotic, and are Photosynthetic as well as Heterotropic - **Incorrect** (Euglena is eukaryotic).
- **Option 2**: Unicellular, Prokaryotic, and are Heterotrophic - **Incorrect** (Euglena is eukaryotic and can be photosynthetic).
- **Option 3**: Unicellular, Eukaryotic, and are Photosynthetic as well as Heterotrophic - **Correct** (This accurately describes Euglena).
- **Option 4**: Unicellular, Eukaryotic, and Heterotropic - **Incorrect** (This does not account for the photosynthetic capability).

5. **Conclusion**:
- The correct answer is **Option 3**: Unicellular, Eukaryotic, and are Photosynthetic as well as Heterotrophic.