Cup-shaped chloroplast in present in

Options

A. Spirogyra
B. Chlamydomonas
C. Ulothrix
D. Chara.

Explanation

To determine which organism has cup-shaped chloroplasts, we can analyze the options provided:

1. **Identify the Organisms**: The options given are:
- Pyrogyra
- Chlamydomonas
- Ulothrix
- Chara

2. **Analyze the Chloroplast Shapes**:
- **Pyrogyra**: The chloroplasts in Pyrogyra are ribbon-shaped.
- **Chlamydomonas**: The chloroplasts in Chlamydomonas are cup-shaped and contain a pyrenoid.
- **Ulothrix**: The chloroplasts in Ulothrix are girdle-shaped.
- **Chara**: The chloroplasts in Chara are discoid or disc-shaped.

3. **Conclusion**: Based on the analysis, the organism with cup-shaped chloroplasts is **Chlamydomonas**.

### Step-by-Step Solution:
1. **List the Organisms**: Write down the names of the organisms mentioned in the question.
2. **Research Chloroplast Shapes**: Look up or recall the shapes of chloroplasts for each organism.
3. **Compare Shapes**: Identify which organism has cup-shaped chloroplasts.
4. **Select the Correct Answer**: Confirm that Chlamydomonas is the correct answer.