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Autotrophic nutrition condensed
Autotrophic nutrition condensed
13
Biology
Undergraduate 1
08/16/2010

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Term
chloroplast
Definition
-2 membranes
-contains thylakoids and stroma
Term
thylakoids
Definition
stacks of grana containing photosystems
Term
stroma
Definition
fluid matrix of chloroplast
Term
PSI
Definition
P700, chlorophyll a
Term
PSII
Definition
P680
Term
light reactions
Definition
-occur in thylakoids
-convert light energy into chemical energy stored in ATP and NADPH
Term
dark reactions
Definition
-occur in stroma
-incorporate CO2 into organic molecules using Calvin Cycle
Term
cyclic electron flow
Definition
-excited electrons from P700 passed down ETC to produce ATP and electrons return to P700
Term
noncyclic electron flow
Definition
-excited electrons of P700 travel down ETC to NADP+ producing NADPH
-excited electrons from P680 travel down ETC to P700 which pumps protons from stroma into thylakoid compartment
-water is split into 2H+ and oxygen to provide electrons to replenish P680
Term
protons are pumped
Definition
from stroma into thylakoid compartment
Term
waxy cuticle
Definition
reduces transpiration and conserves water
Term
guard cells
Definition
open and close stomata
Term
stomata
Definition
permit diffusion of oxygen, water vapor and CO2
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