Which of the following structures is not a component of a photosystem?
atp synthase
antenna molecule
reaction center
primary electron acceptor

ATP synthase

Explanation:

ATP synthase is an enzyme with two functional components and is responsible for the synthesis of ATP through photophosphorylation. Along with other components of the electron transport chain, the ATP synthase of the chloroplast is present on the stromal side of thylakoid membranes. ATP synthase complexes are not part of photosystems.

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hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure