aerobic
term for processes that require oxygen
alcoholic fermentation
the process by which pyruvic acid is convened to ethyl alcohol; the process but that occurs as yeast act anaerobically on the sugar found in fruits and grains.
anaerobic
term for processes that do not require oxygen
ATP(adenosine triphosphate)
A compound that contains to energy phosphate bonds and is an important source of energy for cells
biogeochemical cycle
circulation of substances through living organisms to or from the environment
c3 plant
A plant that fixes carbon using the calvin cycle where carbon dioxide is converted into 3 carbon compounds which then can be turned into 6 carbon sugars
c4 plant
plant that fixes carbon using an alternative pathway in which the first product is a four carbon compound
Calvin cycle
A series of carbon-fixing, sugar-producing, reactions in tge chloroplasts; they use the CO2 and energy produced in the light reaction of photosynthesis
cam
crassulacean acid metabolism, a form of photosynthesis used by desert plants
carbon fixation
the process in which carbon is incorporated into carbon compounds
carbon cycle
the overall circulation of carbon in the biosphere by photosynthesis, and the return of carbon to the atmosphere by respiration and decay; includes the processes of respiration, fermentation, decomposition, and combustion
chlorophyll
green pigment which absorbs light during photosynthesis
chloroplast
organelles containing chlorophyll and other pigments; the site of photosynthesis in plant cells
electron transport chain
molecules in a membrane within a cell through which high-energy, electrons are passed to move photons across the membrane in order to produce
fermentation
process in which food molecules are broken down to produce energy in the absence of oxygen
glycolysis
the first stage of cellular respiration in which glucose is broken down into a molecule of pyruvate
grana
stack of thylakoids in a chloroplast
kreb cycle
the central stage of aerobic respiration in which a series a reactions produce ATP, electron carriers, and carbon dioxide
lactic acid fermentation
the chemical process by which pyruvic acid is converted to lactic acid under anaerobic conditions
light dependent reaction
the first phase of photosynthesis in whicg light is use to split water molecules and produce ATP on thylakoid membranes
light independent reaction
the second phase of photosynthesis in which ATE' and NADPH react with carbon dioxide from the atmosphere to form a carbohydrate
mitchondria
organelle that supplies the cell with A1? for energy by performing oxidative respiration
nitrogen cycle
worldwide circulation and reutilization of nitrogen atoms. Plants take up inorganic nitrogen and convert it into organic compounds which are assimilated into the bodies of organisms
oxygen cycle
the cycle of oxygen movement as it enters the atmosphere through photosynthesis and is used by organisms through respiration
photosynthesis
the process of organisms, primarily green plants, using the light energy to produce ATP and organic molecules
respiration
A process of organisms in which organic molecules such as glucose are broken down and energy is released
stroma
fluid matrix of chloroplast; where the light independent reaction occurs
Thylakoid
flattened membrane-bound sacs in the chloroplast; where the light dependent reaction occurs
water cycle
A continuous movement of water from points of the evaporation through the atmosphere, through precipitation, and through or over the ground, returning to points of evaporation.