ch. 3 cells E and P
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| elements | any substance that cannot be broken down into simpler substances
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| compound | when two or more elements combine chemically, they form a compound
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| carbohydrate | an energy rich organic compound made of C, H, and O
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| lipids | fats oils and waxes
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| proteins | large molecules made of carbon, hydrogen , oxygen, nitrogen, and sometimes Sulfur
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| amino acids |
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| selectively permeable | some substances can pass through the cell membrane, while others cannot.
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| diffusion | the main method by which small molecules move across the cell membrane
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| Osmosis | cells cannot function properly without adequate water, many cellular processes depend on osmosis.
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| passive transport | the movement of dissolved materials through a cell membrane without using cellular energy is called passive transport
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| active transport | it requires the cell to use its own energy while passive transport does not.
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| photosynthesis | photo is Greek which means light, and synthesis means putting together
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| autotroph | an organism that cannot make its own food
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| heterotroph | obtain food by eating other organisms
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| pigments | colored chemical compounds that absorb light
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| chlorophyll | the main photosynthetic pigment in chloroplasts
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| stomata | carbon dioxide enters the plant through small openings on the underside of the leaves
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| respiration | the process which cells obtain energy from glucose.
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| Fermentation | is an energy-releasing process that does not require oxygen
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