Question

What Plastids Contain Chlorophyll And Are Used For Photosynthesis?

Answer 1

Photosynthesis

1. It is the biological process performed by producers to synthesize their own food with the help of sunlight, Co_2, H₂o, and chlorophyll.
2. There are four types of plastids Chromoplasts, Chloroplasts, Leucoplasts, and Gerontoplasts.

Chloroplasts

1. It contains the essential pigment for photosynthesis chlorophylls which is vital to perform photosynthesis in plants.
2. Chloroplasts are biconvex shaped, semi-porous, double membraned, cell organelle found within the mesophyll of the plant cell.
3. They are the sites for synthesizing food by the process of photosynthesis.

Chromoplasts

1. They are coloured plastids that contain accessory pigments like carotenoids which are not necessary for photosynthesis.
2. These can be usually found in flowers, ageing leaves and fruits.
3. The main reason for its different colours is for attracting pollinators.

Leucoplasts

1. They are the non-pigmented organelles which are colourless and usually found in most of the non-photosynthetic parts of the plant like roots.
2. Leucoplasts act as storage sheds for starches, lipids, and proteins depending on the need of the plants.

Gerontoplasts

1. They are basically chloroplasts that go with the ageing process.
2. Geronoplasts refer to the chloroplasts of the leaves that help to convert into different other organelles when the leaf is no longer using photosynthesis usually in an autumn month.