Photosynthisis Flashcards
Light dependent reaction
capture energy from sunlight
make ATP and reduce NADP+ to NADPH
Carbon fixation reactions
use ATP and NADPH to synthesize organic molecules (glucose) from co2
What is the b6-f complex
is a series of electron carriers similar to the electron transport chain in cellular respiration
What is photosynthesis
Takes place in the chloroplasts turns co2 and water into glucose
Equation for photosynthesis
co2 + water ———>glucose + water + O2
what are chloroplasts
organelle containing grana
what is grana
stacks of thylakoids
what is in the thylakoids membrane
contain chlorophyll
what is the stroma
semi-liquid around thylakoids
photon
a particle of light
photo electric effect
energy from light picks off an electron from another molecule
pigments
molecules that absorb visible light specific pigments absorb specific colors
chlorophyll a
absorbs violet blue and red
chlorophyll b
absorbs wavelengths that chlorophyll a misses except green
parts of a photosystem
Antenna complex, reaction center
antenna complex
complex of hundreds of accessory pigments energy transferred from antenna complex to the reaction center
reaction center
electrons here are excited on chlorophyll a molecules energy transferred to a final electron acceptor these electrons are replaced by electrons from water
primary photoevent
pigment molecule captures energy from a photon in the antenna center
charge separation
energy is moved to reaction center, excited electron is transferred to a final electron accepor
electron transport
electrons carried by NADPH
CHEMIOSMOSIS
produces ATP
photosystem II
happens first in the chloroplasts
light reaction parts
photosystem I
photosystem II
b6-f complex
dark reaction parts
calvin cycle
2 G3p molicules are put together
