Give reason:
a) An amoeba and an earth worm have different sizes.
b) The shapes of cells differ not only in different organisms but also in different organs of
the same organism.
c) Tomatoes are red in colour while leaves are green in colour
Answers
Answer:
1.Amoeba has no particular size. It differs in sizes and shapes always though.
3.As the tomato ripens, its colour starts to change from green to yellow and then eventually to red. This is due to the breakdown of chlorophyll, which in turn synthesises a red carotenoid (another pigment group), lycopene.
Explanation:
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Answer:
1) They differ in size because amoeba is unicellular whereas earthworm is multicellular
2) The multiple cell types within a tissue don't just have different functions. They also have different transcriptional programs and may well divide at different rates. Proper regulation of these rates is essential to tissue maintenance and repair. The spatial organization of the cells that form a tissue is also central to the tissue's function and survival.
3) Red colour in tomato fruits is due to the pigment, lycopene. The green color of the leaves is due to the pigment, chlorophyll, which is essential in photosynthesis. Leaves help in preparing food for the plant.
Explanation: