Which locomotory movement is not correct with respect to movement

Options

A. Cyclosis and rotation of cytoplasm in Hydrilla
B. Sucrose induced movement of sperms
C. Flagellar movement of slime mould
D. Chlamydomonas moves away from intense light.

Answer

To determine which locomotory movement is not correct with respect to movement, we can analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Cyclosis**:
- Cyclosis, also known as cytoplasmic streaming, refers to the movement of the cytoplasm within a cell.
- This movement is facilitated by microtubules and microfilaments and is observed in various plant cells, such as those in hydrilla.
- **Conclusion**: Cyclosis is a correct locomotory movement.

2. **Analyzing Sucrose-Induced Movement of Sperm**:
- In the context of sperm, they are suspended in seminal plasma, which contains nutrients like sucrose.
- Sucrose provides energy to the sperm through metabolic processes, primarily in the mitochondria.
- **Conclusion**: Sucrose-induced movement of sperm is a correct locomotory movement.

3. **Evaluating Flagella Movement in Slime Molds**:
- Flagella are whip-like structures that enable movement in various organisms, including slime molds.
- The movement of flagella helps in locomotion and is a correct representation of movement in these organisms.
- **Conclusion**: Flagella movement in slime molds is a correct locomotory movement.

4. **Examining Chlamydomonas Movement**:
- Chlamydomonas is a unicellular green alga that possesses two flagella at its apical end.
- It is known to move towards light (positive phototaxis) rather than away from it.
- The statement that chlamydomonas moves away from intense light is incorrect.
- **Conclusion**: Chlamydomonas moving away from intense light is not a correct locomotory movement.

### Final Answer:
The locomotory movement that is not correct is: **Chlamydomonas moves away from intense light** (Option 4).

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