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Plastids are present in both plant and animal cells.

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In unicellular organisms the vacuole contains the food which an organism has consumed.

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The nucleus plays a central role in cellular reproduction.

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An undefined nuclear region containing only nucleic acids is called a nucleolus.

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The chlorophyll in photosynthetic prokaryotic bacteria is associated with membranous vesicles but not with plastids.

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The endoplasmic reticulum is a large network of membrane-bound tubes and sheets.

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RER looks smooth under a microscope because it has particles called ribosomes attached to its surface.

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Leucoplasts are the coloured plastids.

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Vacuoles are storage sacs for solid or liquid contents.

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Mitochondria have three membrane coverings.