Photosynthesis Light Dependent Flashcards
(22 cards)
what is photosynthesis the process of
light energy being converted to chemical energy
what are the pigments in chloroplasts that make cells in plants green
chlorophyll
what are chloroplasts
organelles where photosynthesis occurs
what are thylakoids
membrane disks inside chloroplasts
what happens in thylakoids
light is absorbed by protein pigment complexes
where is chlorophyll located
in the membrane of thylakoids
what is the thylakoid lumen
space inside the thylakoid
is the concentration of H+ high or low in the thylakoid lumen
high H+
where is the stroma
space inside the chloroplast
is there a high or low H+ concentration in the stroma
low H+
energy in photons is absorbed by electrons which is known as
excitation
light absorbed by pigments in the thylakoid membrane are arranged into what
photosystems II and I
photons hit pigments in what during the first step of photosynthesis
photosystem II
after photosystem II what are the remaining locations of the process
reaction center, primary electron acceptor, ETC, PSI, ATP synthase
energy is transferred from the pigments to a harvesting complex to a…
special pair of chlorophyll molecules in the reaction center
the special pair of chlorophyll molecules give excited electrons to the primary electron acceptor and are replaced with H2O producing what
O2
electrons flow from the primary electron acceptor to
the electron transport chain
energy in electrons is used by the ETC to do what
create a H+ gradient
electrons arrive at PSI and what happens
they are re-excited with light
energy from electrons is used by the ETC to produce
NADPH
H+ gradient is used by what to make what
ATP synthase to make ATP
what is the photosynthesis full equation
6CO2 + 6H2O sunlight C6H12O6 + 6O2
