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GRADE X BIOLOGY EXACT LOCATION AND FUNCTION SR NO. STRUCTURE 1 Cell membrane Outermost in animal cells. Lies next to cell wall in plant cells. Cell wall Surrounding plasma membrane/ cell membrane in plant cells. Centrosome Region surrounding the centrioles located near the nucleus in an animal cell. Chloroplast 1.In the cytoplasm of plant cells. 2.located mainly contained in the mesophyll cells located between the upper epidermis and the lower epidermis(i.e in palisade cells and spongy cells) of leaves. 3. Found in the guard cells of stomata and in the outer layers of young green stems. Regulates the entry of certain solutes and ions. 5. Chromatin fibres In the nucleoplasm in interphase stage of nucleus. Carry hereditary information or genes 6 Genes located on chromosomes. Encode particular protein which express in form of some particular feature/character or traits of the body of an organism 2. 3. 4. EXACT LOCATION FUNCTION Allows substances in solution to enter and leave the cell without hindrance and gives rigidity and shape to the plant cell. Region surrounding the centrioles located near the nucleus in an animal cell. Trap solar energy for photosynthesis. 1
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