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21 Cards in this Set
- Front
- Back
diffusion
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net movement of particles from an area of higher concentration to an area of lower concentration.
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dynamics equilibrum
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conditions continuous , random movement of particles but no overall change in concentration of materials
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facilitated diffusion
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passive transport of ions and small molecules across the plasma membrane by transport proteins
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osmosis
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diffusion water across a selectively permeable membrane
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isotonic solution
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a solution with the same concentration of water and solutes as inside cell, resulting in the cell retaining its normal shape because there is no net movement of water
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hypotonic solution
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a solution that has lower concentration of solve outside than inside the cell ,causing water to flow into the cell by osmosis
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active transport
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energy- requiring process by which substance move across the plasma membrane aginst a concentration gradient
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endocytosis
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energy -requiring process by which large substance from the outside environment can enter a cell
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exocytosis
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energy - requiring process by which a cell expels was to and secrets subtances at the plasma membrane
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energy
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ability to do work and energy cannot be created or destroyed only transformed
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thermodynamics
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study of the flow and transformation of energy in the universe
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metabolism
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all of the chemical reactions that occur within an organism
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photosynthesis
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two phase anabolic pathway in which the suns light energy is converted to chemical energy for use by the cell
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cellular respiration
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catabolic pathway in which organic molecules are broken down to release energy for use by the cell
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ATP(adenonsinetriphosphate)
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energy carrying biological molecule which when broken down drives to release energy from use by the cell
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thylakoid
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in chyloroplasts one of the stacked flattened pigment-containing membranes in witch light dependent reactions occur
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granum
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one of the stacks of pigments containing thylakoids in a plants chloroplaste
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stroma
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fluid filled space outside the grams in which light dependent peat ions take place
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pigment
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light absorbing colored molecule such as chlorophy11 and carotenoid in the thylakoid membranes of choreplast
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NADP
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in photosynthesis the major electron carrier involved in electron transport
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calvin cycle
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light independent reactions during phase two of photosyntheisia which energy is stored in organic molecules as glucose
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