Please solve question no.2.c and d.
Dear Student,
2.
(c) Centrosome is a small body located near nucleus. It is the place where microtubules are formed. Centrosome is also present in plant cell. But unlike animal cell, centrosomes in plant cell do not have centrioles.
Chromosomes are organized structures of DNA and proteins that are found in cells. A chromosome is a singular piece of DNA, which contains many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.
(d) A chloroplast is a plastid(membrane-bound organelle)that contains chlorophyll, carotene, and xanthophyll pigments and is responsible for preparation of food in plants. chloroplasts are easy to confuse with chromoplasts because they contain carotene and xanthophyll as well but lack chlorophyll and cant make food for plants.
Chromoplasts do not contain chlorophyll, they don't play any true roll in photosynthesis. Their main job is to "make the plant look pretty." This isn't necessarily for human amusement. Instead, it is to attract insects, such as bees and butterflies, and animals, such as rodents. This attraction is important to the reproductive cycle of the plant, but that is a whole other question. chloroplast are not used for attraction.
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