A diagram of the light-dependent reactions in photosynthesis includes several components. Which component is correct?

reaction centers after both photosystems
water split apart after photosystem I only
ATP used at the start of both photosystems
an electron transport chain between the photosystems
photosystem I shown on left, followed by photosystem II on right

Question

A diagram of the light-dependent reactions in photosynthesis includes several components. Which component is correct?

reaction centers after both photosystems
water split apart after photosystem I only
ATP used at the start of both photosystems
an electron transport chain between the photosystems
photosystem I shown on left, followed by photosystem II on right

anonymous · Answer

I'm not too knowledgeable on photosystems, I know the diagram I looked at had the second photosystem first, and the first one second..

anonymous · Answer

I believe they had an electron transport chain between them

aaronq · Answer

reaction centers after both photosystems.. 
water split apart after photosystem I only.. water is split apart where?
ATP used at the start of both photosystems .. tap is not used in photosynthesis
an electron transport chain between the photosystems.. 
photosystem I shown on left, followed by photosystem II on right.. nope

aaronq · Answer

tap= atp .. damn autocorrect

anonymous · Answer

Hmph, between reaction centers and an electron transport chain..? I know there's a transport chain between II and I but, I don't recall two reaction centers.

anonymous · Answer

Or wait.. I think there actually is two reaction centers, they're at the 'heart' of each photosystem

aaronq · Answer

i was narrowing down options to help, but it seems like I'm confusing you.. but you're totally right

anonymous · Answer

I think.

aaronq · Answer

etc is in between them

anonymous · Answer

I was right..woah! No no, you narrowing it down helped. I was typing to figure it out, by memory at the very least. I don't have my book, just my paper. Which one has the reaction center, even if the question isn't on my review :3

aaronq · Answer

I'm sure PII has a reaction centre, but i actually think they both do, because both systems are able to excite electrons and reduce other molecules.. but again only PII splits water and uses those electrons..

aaronq · Answer

i looked it up, they both do..

anonymous · Answer

They do? o.o Evil multiple choice question..

anonymous · Answer

Thats what I call them at least.

aaronq · Answer

hahah they are evil. trying to trick us

aaronq · Answer

maybe the trick is in the wording? like AFTER each photosystem

anonymous · Answer

You're right! Wording... They're in the 'heart' of them, at least I was taught.. if I recall right. Woah.. I would have never looked at it like that!