light reaction \ Flashcards
what does light rxn include
light absorbtion
water splittinf
oxygen release
production of high energy intermediates like ATP and NADPH
the LHC are made of pigments molecule bound to ___
proteins
the reaction centre of PS1 has absorbtion peak at__ and PS 2 at __
700nm
680nm
the movement of electron from ps2 to e- acceptor then to the cytochrome is __
down hill (in terms of redox potential scale)
the acceptor molecule of ps 1 has ___ redox potential
greater
the splitting of water is associated with what photosystem?
PS2
the e- used by ps2 is supplied by?
splitting of water
where is ps2 located
inner side of the membrane of thyllakoid
what is phosphorylation?
synthesis of ATP by cells in mitochodria and chloroplasts
what is photophosphorylation
synthesis of ATP from ADP and inorganic phosphate in the presence of light
where is PS 1 present?
stroma lamellae
where can we see cyclic flow
stroma lamellae as it lacks PS2 and NADP reductase enzyme
in the cyclic flow what is the end product
ATP and not NADP
ATP synsthesis for photosynthesis is linked to?
proton gradient
in proton gradient for synthesis of ATP the proton accumulation is
in the lumen
