module 5 - cell energy Flashcards
photosynthesis involves
light and gas exchange
where does photosynthesis occur?
chloroplasts
what 2 pathways involves photosynthesis?
light reactions and carbon-fixation reactions
light reactions
convert light energy into chemical energy in form of ATP and NADPH
carbon-fixation reactions (light-independent reactions)
use ATP, NADPH and CO2 to produce carbs
where does light reactions take place in
thylakoid membrane
where does carbon-fixation reactions take place in
stroma
pigments
molecules that absorb wavelength in visible spectrum
light energy is _______ by pigments in photosynthesis
absorbed
what is light
form of electromagnetic radiation
photons
particles of light
light energy is ________ by molecules
absorbed
each pigment absorbs _____ ?
specific wavelengths
what does chlorophyll’s structure allow?
absorb energy from light
chlorophyll pigments are arranged in
photosystems