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17 Cards in this Set
- Front
- Back
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We eat to:
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get energy and acquire raw materials for growth and metabolism.
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Cell surface membranes:
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exert control over what enters and leaves the cell.
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Cell walls are synthesised:
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by linking molecules of glucose to make cellulose. Cell walls on outer surface of cell surface membrane.
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plant cells respire:
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all the time, all of them, even at night.
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heterogeneous
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composed of different types
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inorganic compounds
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compounds which do not contain carbon, or if they do, they do not also contain hydrogen
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macromolecules
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molecules consisting of large numbers of atoms
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metabolic processes / metabolism
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all the chemical reactions which occur in cells
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monosaccharide
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a sweet-tasting molecule comsisting of a single unit.
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nucleic acid
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a kind of acid abundant in the nuclei of cells, includes DNA and RNA
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organic compounds
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compounds which contain carbon and usually hydrogen
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polysaccharides
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a chain of sweet-tasting molecules
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respiration
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the chemical breakdwon of organic molecules with th release of energy; occurs inside cells
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Metabolism...
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includes two types of processes. Catabolism - large to small, and Anabolism - small to large.
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Difference between cell membranes and cell surface membranes:
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Cell membranes can be found internally forming part of organelle strucutre.
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Cell membranes contain
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lipids and proteins
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Cellulose is
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carb, macromol, polysacch and polymer
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