Photosynthesis review

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