Distinguish between the following
(a) Chromoplast and chloroplast
(b) Ribosome and centrosome.
Distinguish between the following
(a) Chromoplast and chloroplast
(b) Ribosome and centrosome.
(a) Chloroplasts :
1. They are green plastids.
2. They contain chlorophylls and carotenoids.
3. Lameliae are present.
4. Chloroplasts are sites of photosynthesis.
Chromoplasts
1. They are non-green coloured plastids.
2. Chlorophylls are absent. Only carotenoids are present.
3. Lamellae are absent.
4. They add colour to the organs for attracting animals to perform pollination and fruit dispersal.
(b) Ribosome :
1. It is found in both animal cell and plant cell.
2. These are dense, spherical and granular particles which occur freely in the matrix or remain attached to the endoplasmic reticulum.
Centrosome :
1. Centrosome is found only in animal cells.
2. It consists of two granules like centrioles.
(a) Chloroplasts :
1. They are green plastids.
2. They contain chlorophylls and carotenoids.
3. Lameliae are present.
4. Chloroplasts are sites of photosynthesis.
Chromoplasts
1. They are non-green coloured plastids.
2. Chlorophylls are absent. Only carotenoids are present.
3. Lamellae are absent.
4. They add colour to the organs for attracting animals to perform pollination and fruit dispersal.
(b) Ribosome :
1. It is found in both animal cell and plant cell.
2. These are dense, spherical and granular particles which occur freely in the matrix or remain attached to the endoplasmic reticulum.
Centrosome :
1. Centrosome is found only in animal cells.
2. It consists of two granules like centrioles.
