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bio ch. 7
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photosynthesis
plants use sunlight to make glucose; 6CO2 + 12 H20= glucose + 6 O2
autotrophs
make their own food; producers; plants
heterotrophs
get food from other organisms; consumers; animals, humans
chloroplast
where photosynthesis takes place
stomata
pores in the plant leaves for CO2 to come in and O2 to exit
mesophyll
middle of the leaf
stroma
open space in chloroplast; where calvin cycle takes place
thylakoid
a flattened disk in chloroplasts
grana
stacks of thylakoid disks; where light reaction takes place
light reaction
photosytem I & II; makes ATP and O2
calvin cycle
stage that actually makes glucose from CO2; dark reaction
wavelength
a measure of the difference between waves of energy
an object looks a particular color beacuse..
it reflects that wavelength of light back
spectrophotometer
measures how much light is absorbed by a solution
different wavelengths of light also have different amounts of energy;
shorter wavelengths have more energy
chlorophyll
green pigment used in photosynthesis
carotene
yellow-organge pigment
xanthrophyll
brown pigment
anthocyanin
red pigment
photosystem II
makes oxygen and ATP
photophosphorylation
production of ATP in plants from light energy
photosystem I
makes NADPH
NADPH
NADP holds an H+ for the calvin cycle
calvin cycle
CO2 made into sugar; C3 cycle; 6CO2 + 18 ATP + 12 NADPH= glucose
CAM pathway
get CO2 at night, convert to malate, close stomata during day, at night convert malate back to CO2 and starts dark reaction
C4 plants
converts CO2 into oxaloaccetate, sends oxaloacetate to a different part of the cell, converts oxaloacette back to CO2 and starts dark reactions
Author
danilamotte
ID
176298
Card Set
bio ch. 7
Description
ch. 7
Updated
2012-10-08T20:39:29Z
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