chapter 4- photosynthesis and cellular respiration Flashcards
what are the parts of a chloroplast
thylakoids, a stack of these is a grana. double membrane. stroma fills the chloroplast. lamell connects the two grana. pigments are ligh capturing molecules.
ligh dependent reactions
take place in the thylakoid, and are dependent on light
light independent
calvin cycle takes place in the stroma
electron transport chain
carries high energy electrons from one molecule to another
the electron
leaves photosystem II moves down electron transport chain
the energy from the electron is used
to pump protons
lost electrons are replaced by what
electrons from the hydrogen from the broken down water.
sunlight is absorbed by what
photosystem I
light energy makes
high energy electrons again
the electron leaves
photosystem I travels down a different chain
the electron adds on to
the electron chain
run by concentration gradient of
proton across the thylakoid membrane
protons diffuse through
the ATP synthase down their gradient to form ATP
what are the reactants and products of the light reactions
water and light –> NADPH, O2, H+, and H2O
where does photosynthesis take place
chloroplast