Describe Photosystems I & II...
2006-11-15 23:32:19 · 3 answers · asked by K' 1 in Science & Mathematics ➔ Biology
red drop mechanism/Emerson's effect indicates there are2 pigment systems,
Pigment system i/Photosystem i
Pigment system ii/Photosystem ii
Pigment system i/Photosystem i
it is a weakly fluoroscent pigment system consisting of chlorophyll b,chlorophyll a670,chlorophyll a680,chlorophyll a695 and a very small amount of chlorophyll a700,which constitutes the reaction centre of PSl .the carotenoids are also present and in blue green algae,chlorophyll b is replaced by phycobilins.
Pigment system i/Photosystem ii
it is a strongly fluoroscent pigment system consisting of carotenoids,chlorophyll b,chlorophyll a(670),chlorophyll a(680)--> which is called p680& constitutes the reaction centre of PSll.
2006-11-16 01:17:28 · answer #1 · answered by dincpurple 2 · 0⤊ 0⤋
In Photosystem II - the electrons are despatched down the electron delivery pathway. also in this level~Water is chop up~electron delivery takes position~Produces ATP~ In Photosystem I - the electrons are picked up by NADP+ also~NADPH is produced~NADPH releases H+ and e-~ Does that help?
2016-11-29 04:46:10 · answer #2 · answered by lesniewski 4 · 0⤊ 0⤋
colorful
2006-11-15 23:37:33 · answer #3 · answered by guRl 6 · 0⤊ 0⤋