Which one of the following statements is incorrect for Euglena ?

Options

A. It has flagella for locomotion
B. It has rigid cell well
C. It has mixotrophic mode of nutrition
D. Reseve food is paramylum starch

Answer

### Step-by-Step Solution:

1. **Understanding Euglena**:
- Euglena is a unicellular organism that exhibits both plant-like and animal-like characteristics. It is known for its ability to photosynthesize due to the presence of chlorophyll.

2. **Locomotion**:
- One of the correct statements about Euglena is that it has flagella for locomotion. Euglena possesses two flagella, which aid in its movement through water.

3. **Cell Structure**:
- A common misconception is that Euglena has a rigid cell wall. However, this statement is incorrect. Euglena does not have a rigid cell wall; instead, it has a flexible pellicle that allows it to change shape.

4. **Mode of Nutrition**:
- Euglena is known to have a mixotropic mode of nutrition, meaning it can obtain energy and carbon from both autotrophic (photosynthesis) and heterotrophic (absorbing nutrients) sources. This statement is correct.

5. **Storage of Food**:
- The reserved food material in Euglena is paramylum starch. This is a correct statement as Euglena stores its food in the form of paramylum.

6. **Conclusion**:
- The incorrect statement regarding Euglena is that it has a rigid cell wall. Instead, it has a flexible pellicle.

### Final Answer:
The incorrect statement about Euglena is that it has a rigid cell wall.

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