Photosynthesis: Light Reactions and Photophosphorylation
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m peparin for my exams and i understood it fully now.....thanks!!!.........u r far better than my teacher he took weeks and still i din understand ......within 20min of ur lecture...i understood it so weell...than m sure i can explain it even wen m sleepin!!!/.....marvellous!! :) :D
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@Sonictriforce he did say tat from ferrodoxin its not directly goin to NADP+ but goes to maybe a no of electron carriers then to NADP+.....!!!.... listen up carefully buddy!!!... :) :)
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Can someone remind me what the main difference is between how ATP is produced by oxidative phosphorylation in respiration, and how it is produced in photosynthesis?
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Nice and Big...! :D
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okay so when the hydrogens are taken off of H20, are those hydrogens already in the lumen or are they in the stroma? if they are already in the lumen, where are the hydrogens in the stroma coming from?
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@luisdemasiado Well, sure he's completely right with most of the stuff, but yes, when it comes to cyclic photo phosphorylation, the electron is transferred only in PS1 in a cyclic manner and doesn't even tough PS2 cuz plastocyanin transfers the electron to P700, which further transfers it to FRS, then to ferredoxin, to cyt b6, then to cyt f, back to plastocyanin and again to P700... and this cycle keeps going on, but P680 has absolutely nothing to do with cyclic photo phosphorylation.
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I would love to meet you in real life to give you a hug. I remember watching you on a local channel explaining what you do in your videos. My father reminded me to check youtube to help me when real people cannot and you have worked wonders. Thank you so much and please don't stop teaching!
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Einstein has nothing on you!!!
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Wow. Thank you so much Sal. Photosynthesis is easy in general bio but in AP we get all specific and i swear i was lost. Ive been watching all your videos on photosynthesis and i feel much better on my understanding on photosynthesis. Im actually interested in learning about it and im fascinated. Your videos are SO MUCH BETTER than books/teachers. Thank you so much.
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4 months ago 3
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In cyclic photophosphoylation, the electrons from the PS1 complex are taken by the mobile carrier, ferrodoxin, to the cytochrome b6f complex instead of the NADP+ reductase. This creates a mini cycle that pumps protons into the lumen, which are then used by the enzyme ATP synthase to create ATP.
Like this comment so this could be seen by Khan so, he could correct it.
Sonictriforce 1 year ago 97
someone confused the dislike button with the like button but dont worry, every one can make a mistake, except for the guy who does this videos he is always right
luisdemasiado 1 year ago 40