photosynthesis
the process of using light energy to convert CO2 and water into sugars
photosynthesis equation
6CO2 + H2O + light energy = C6H12O6 + 6O2
reactants of photosynthesis
6CO2 +6H2O
products of photosynthesis
C6H12O6 + 6O2
stomata (stoma)
pores on the underside leaf that are responsible for gas exchange and water loss
stroma
fluid around thylakoid
thylakoid
structure found in the chloroplast that is responsible for light exchange
chlorophyll
light absorbing pigment in plants that makes plants green
autotrophs
producers, self-nourishers, plants are considered producers
light dependent reactions
takes place in thylakoid membrane
what light dependent reactions use
light energy and H2O
what do light dependent reactions produce
produce o2 which goes into the atmosphere for other organisms and energy (NADP, NADPH)
light independent reactions
takes place in the stroma, energy that drives the calvin cycle comes from this reaction
products of the calvin cycle
glucose
compound used in light independent reactions
co2
light intesity
up and over
carbon dioxide concentration
up and over
temperature
up and down
c3
typical pathway, e.g. soybeans, tobacco, cotton
c4
during hottest part of the day, keep stomata partially closed, e.g. corn, sugarcane, a lot of grasses
cam plants
plants in hot dry climates, stomata are closed during the heat to keep the water in, e.g. cactus, pineapple