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10 Cards in this Set
- Front
- Back
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The bioelements are
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C, H, N, O, P, S, Ca,
Na, Mg, K, Cl... B, Pt, Li |
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why is it that most on biological molecules are carbon based
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the same reason nature makes most molecules organic compounds. The bond energies of Carbon with anyother element differs slightly from 90 kcal/mol and therefore there is a minimal energy gradient to overcome.
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The rigid outermost cell layer found in plants and certain algae, bacteria, and fungi but characteristically absent from animal cells
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Cell wall
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The semipermeable membrane that encloses the cytoplasm of a cell
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cell membrane
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The fluid component of cytoplasm, excluding organelles and the insoluble, usually suspended, cytoplasmic components.
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cytosol
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The part of a bacterium or virus that contains nucleic acid and is analogous in function to the nucleus of a eukaryotic cell.
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nucleoid
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A minute round particle composed of RNA and protein that is found in the cytoplasm of living cells and serves as the site of assembly for polypeptides encoded by messenger RNA.
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ribosomes
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A cellular or cytoplasmic particle, especially one that stains readily.
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storage granules
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The internal framework of a cell, composed largely of actin filaments and microtubules.
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Cytoskeleton
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A long, threadlike appendage, especially a whiplike extension of certain cells or unicellular organisms that functions as an organ of locomotion.
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flagellum
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