chromoplast and leucoplast
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Answer:
Explanation:
Chromoplasts are found in fruits, flowers, roots, and stressed and aging leaves, and are responsible for their distinctive colors. ... Chromoplasts synthesize and store pigments such as orange carotene, yellow xanthophylls, and various other red pigments. As such, their color varies depending on what pigment they contain.On the basis of presence of pigments, the plastids are of two types: (i) the chromoplasts (chromatophores) having pigment, and (ii) the leucoplasts which are colorless plastids. 1. Chloroplasts: ... Chlor, green, plast, and living) which contains chlorophyll a and b pigments, and DNA and RNA. Chromoplasts contain carotenoid pigments and can be found in flowers, fruits, senescing leaves, and sometimes in roots; etioplasts are present in seedlings grown in the dark. Chromoplast. a pigmented intracellular organelle of plant cells; a type of plastid. Chromoplasts may be spherical, spindle-shaped, sickle-shaped, or irregularly polygonal. Their orange, yellow, or brownish coloring is caused principally by carotenoids.
leucoplasts. A plastid lacking photosynthetic pigments and involved in various biosynthetic functions. Supplement. Plastids are organelles involved in the synthesis and storage of food. They are found within the cells of photosynthetic eukaryotes. Leucoplasts are colorless plastids. found in endosperm, tubers, roots and other non-photosynthetic tissues of plants. They serve various functions, for example, storage of starch, lipids, or proteins. Plastids of these three types are respectively known as amyloplasts, elaioplasts, and proteinoplasts. They are non-pigmented, in contrast to other plastids such as the chloroplast. Lacking photosynthetic pigments, leucoplasts are not green and are located in non-photosynthetic tissues of plants, such as roots, bulbs and seeds. Leucoplasts, Chromoplasts and Chloroplasts. Leaves are green, fall leaves or autumn leaves are orange or yellow, ripe tomato is red, where we have red, white, yellow and beautiful shades of roses.
Answer:
1.Leucoplasts-
(a) They are colourless.
(b) They are found in the nucleus of non
green cells.
© They are of different size, forms and
store different food materials.
(d) Grana arte absent in leucoplasts.
(e) The different types of Leucoplasts are-
(i) Amyloplasts- They store Starch. E.g.
Tuber of Potato.
(ii) Elaioplasts- They store Oils and Fats.
E.g. Castor.
(iii)Aleuroplasts- They store Proteins. E.g.
Aleurone cells of Maize.