Explain in 2 or more sentences Q15 plzz
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(i) Protoplasm is a complex material comprised of two categories of substances. It is because of the complexity of physical properties and chemical properties that the ultimate chemical nature of protoplasm can not be determined.
(ii) Plants don't move - they require less energy. Animals move, mitochondria is usually found in organisms requiring a lot of energy for mobility or other types of mechanical movement. The cells with the most mitochondria are muscle cells, the cells that are responsible for movement in animals. Plants have chloroplasts (which animal cells do not) to produce energy by converting sunlight but animal cells need more mitochondria to produce energy during respiration that’s why mitochondria are power house of the cell.
(iii) Beet root contains anthocyanin pigment which is in very high concentration and it is readily soluble in water so it immediately comes out evenif beet roots are kept in water at normal temperature. In carrots there are caroteinoides which are not highly soluble in water as well as the concentration of these pigments is less as compared to that of the anthocyanins in Beet root.