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Qil: Which of the following best explains why both plant and animal cells contain cell membranes? A Both animal and plant cells have cell membranes to act as the site of protein synthesis. B Both animal and plant cells have selectively permeable cell membranes to control which substances can enter and leave the cell. C Both animal and plant cells have cell membranes to store and organize their genetic material. D Both animal and plant cells have cell membranes that contain cellulose to provide structure and support for the cell. E This is incorrect; only animal cells have cell membranes.
B. Only the plant cell wall is impermeable. Protein synthesis is undergone in the nucleus and endoplasmic reticulum. Nucleus is where genetic materials (DNA) are stored and organised. Only plant cell wall is made up of cellulose. It helps plant cells stay rigid. Plant cells have both cell wall and cell membrane.
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