In the thylakoid membrane of a chloroplast, a specialized molecule that shares the reaction-center complex with a pair of chlorophyll a molecules and that accepts an electron from them.Group of answer choicesNADP⁺PEP carboxylaseprimary electron acceptorrubiscoreaction-center complexphotosystemG3Plight-harvesting complex

A light-capturing unit in a chloroplast’s thylakoid membrane has two molecules of P700 chlorophyll a at its reaction center. (It is called P700 because it most effectively absorbs light of wavelength 700 nm).Group of answer choicesprimary electron acceptorrubiscoreaction-center complexphotosystemPEP carboxylase

A complex of proteins that contains a special pair of chlorophyll a molecules and a primary electron acceptor.Group of answer choicesphotosystemrubiscoreaction-center complexprimary electron acceptorlight-harvesting complex