Photosynthesis Flashcards
Cells (autotrophs) can capture free energy thru
light (photosynthesis) chemical compounds (chemosynthesis)
Two steps of PSYN
- light reactions (also called: light- dependent reactions)
2. Calvin cycle (also called: light-independent reactions )
light-dependent reactions occur in
Thylakoids
light independent reactions occur in
stroma
electromagnetic spectrum
range = wavelengths < 1nm to wavelengths > 1km
photosynthesis driven by
- light detectable by human eye
- visible light
pigment
substance that absorbs visible light
black
all wavelengths absorbed
white
all wavelengths reflected/transmitted
chlorophyll a
the primary pigment
chlorophyll b,c arotoids
accessory pigments
inter membrane space
the space between the 2 outer membranes
thylakoid space
thylakoids = flattened membranous sacs inside chloroplasts where chlorophyll embedded within thylakoid membrane
stroma
thick fluid outside / surrounding thylakoids, inside chloroplast