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transfers energy from the breakdown of food molecules to cell products


a lower-energy molecule that can be converted to energy


process by which some organisms use chemical energy to make energy storing carbon based molecules


captures energy form sunlight to make sugars that store chemical energy


molecule in chloroplasts that absorbs some of the energy in visible light


membrane bound structure within chloroplasts that contains chlorophyll and other light absorbing pigments used in light dependent reactions of photosynthesis

light dependent reactions

capture energy from sunlight and take place within and across the membrane of a thylkaloid

light independent reactions

use energy from the light dependent reactants to make sugars occur in stroma of chloroplasts

cellular respiration

releases chemical energy from sugars and oxygen carbon based molecules make ATP when oxygen is present


needs oxygen to take place


doesn't need oxygen to take place


splits glucose into three carbon molecules and makes two molecules of ATP

krebs cycle

produces molecules that carry energy to the second part of cellular respiration


removes electrons from NADH molecules and recycles NAD=molecules for glycolosis

lactic acid

product of fermentation which causes your muscles to burn


organism that obtains its energy from a biotics sources such as sunlight or inorganic molecules

guard cells

one of the pair of cells that controls the opening and closing of a stoma in a plant tissue

muscle fatigue

build up of lactic acid in muscle tissue during anaerobic respiration


product of the fermentation in plant cells

gas exchange

diffusion of gases between organisms and its environment

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