Spiral shaped chloroplast is found in which of the following algae?

Options

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

Answer

To answer the question "Spiral shaped chloroplast is found in which of the following algae?", we will analyze the options provided and identify the correct answer step by step.

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking about the type of chloroplast shape found in certain algae, specifically looking for a spiral shape.

2. **Evaluate the Options**:
- **Option A: Spirogyra**: This is a type of green algae known for its ribbon-shaped chloroplasts that are arranged in a helical manner. This arrangement gives them a spiral appearance.
- **Option B: Chlamydomonas**: This algae has cup-shaped chloroplasts, which do not fit the description of spiral-shaped.
- **Option C: Oedogonium**: This type of algae has reticulate (net-like) chloroplasts, which also do not match the spiral shape.
- **Option D: Ulothrix**: This algae has girdle-shaped or band-shaped chloroplasts, which again do not correspond to the spiral shape.

3. **Identify the Correct Answer**: From the evaluation, it is clear that Spirogyra is the only option that has chloroplasts arranged in a manner that gives them a spiral shape. Therefore, the correct answer is **Option A: Spirogyra**.

### Final Answer:
The spiral-shaped chloroplast is found in **Spirogyra**.