Question

bring out the differences between the chroloplasts and chromoplasts

Answer 1

■ Chloroplasts are the green plastids which function as the site for photosynthesis which posses photosynthetic pigments, chlorophylls and carotenoids, and take part in synthesis of food from organic raw materials in the presence of sradiation energy. Chloroplasts of algae other than green ones are called chromatophores (e.g., rhodoplasts of red algae, phaeoplasts of brown algae).

■ Chromoplasts are the yellow plastids or reddish in colour because of the presence of carotenoid pigments. Chlorophylls are absent. Chromoplasts are formed either from leucoplasts or chloroplasts. Lamellae degenerate partially or completely during Chromoplast formation. Change of colour from greenish to reddish during the ripening of tomato and chilli is due to transformation of chloroplasts to Chromoplasts.

Now let's jump up to the main key differences.

▪ Chloroplasts are green organelles containing green plastids.
▪ Chromoplasts are orange-red plastids.
▪ Chloroplasts are restricted to only some protists and exposed cells of plants.
▪ Chromoplasts are quite common or regularly found in exposed parts of flowers and fruits.
▪ Chloroplasts are generally disc-shaped.
▪ The shape of Chromoplasts are irregular and having angles due to crystallisation of pigments.