The bright colours of ripe fruits are due to
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Which of the following type of plastids does not contain stored food material

Options

A. Amylopiasts
B. chromoplast
C. Elaioplasts
D. Aleuroplast

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the bright colors of ripe fruits and which type of plastids does not contain stored food material.

2. **Identifying Types of Plastids**: There are several types of plastids in plant cells, including:
- **Leucoplasts**: These are colorless plastids that store food materials. They can be further classified into:
- **Amyloplasts**: Store starch.
- **Elaioplasts**: Store lipids.
- **Alluroplasts**: Store proteins.
- **Chromoplasts**: These are colored plastids that contain pigments, such as carotenoids, which give fruits their bright colors.

3. **Analyzing the Bright Colors of Fruits**: The bright colors of ripe fruits are primarily due to the presence of **Chromoplasts**. These plastids contain pigments that are responsible for the red, orange, and yellow colors seen in many fruits.

4. **Determining the Plastid Without Stored Food**: Since the question also asks which type of plastid does not contain stored food material, we note that:
- **Chromoplasts** do not store food; instead, they are involved in pigment production.
- **Leucoplasts**, on the other hand, are specifically involved in the storage of food materials.

5. **Conclusion**: Therefore, the bright colors of ripe fruits are due to **Chromoplasts**, and the type of plastid that does not contain stored food material is also **Chromoplasts**.

**Final Answer**: The bright colors of ripe fruits are due to **Chromoplasts**.

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