Chapter 19 Photosynthesis Flashcards
net photosynthesis reaction
CO2 + H2O + light makes (CH2O) + O2
light reaction mechanism
light + water + ADP + Pi + NADP+ makes oxygen + ATP + NADPH + H+
Dark reaction mechanism
CO2 + ATP + NADPH + H+ makes (CH2O) + ADP + NADP+ + Pi
chloroplast structure
outer membrane > inner membrane > stroma > granum (made up of thylakoids) > lumen
light trapping site structure
a porphyrin ring surrounding a magnesium atom
photochemistry
excited pigment loses an electron to an electron acceptor
photosystem structure
contain a bed of pigments called the antenna that harvest light directly or from the LHC
where does photochemistry occur?
occurs at reaction center. a special pair of chlorophyll molecules distinct from others.
z scheme
excitation energy is transferred to P680 then to P700
P680 is called PSI or PSII
PSII
dark rections also called the ? cycle
calvin