Question

The plastids which make the flowers and fruit conspicuous to animals for pollination and dispersal are:

• A. Chloroplasts
• B. Chromoplasts
• C. Leucoplasts
• D. None of these

Answer 1

The correct option is B

Chromoplasts

The correct option is B:

Explanation of the correct option:

1. These plastids are yellow, orange, or reddish in color because of the presence of carotenoid pigments.
2. Chromoplasts are either formed from leucoplast or chloroplasts.
3. They mainly occur in pericarp and petals.
4. The red color of tomatoes is due to the red pigment of chromoplasts.
5. The orange color of carrots is because of chromoplasts.
6. Chromoplasts are the plastid that makes the flowers and fruits conspicuous to animals for pollination and dispersal.

Explanation of the incorrect option:

Option A:

Chloroplasts contain photosynthetic pigments, chlorophyll, and carotenoids which are responsible for trapping light energy essential for photosynthesis.

Option C:

Leucoplasts are colorless plastids of varied shapes and size that store nutrient.

Final answer: The plastids which make the flowers and fruit conspicuous to animals for pollination and dispersal are chromoplasts.