Which of the following events accompanies absorption of energy by chlorophyll molecules of the reaction-center complex? a) an electron is excited. b) a molecule of water is split. c) nad+ is reduced to nadh. d) atp is synthesized from the energy absorbed. 6) what are the products of linear electron flow during the light reactions of photosynthesis? a) atp and p700 b) atp and nadph c) heat and fluorescence d) adp and nadp+

B

Explanation:

The energy harnessed from the sun is used to split a water molecule into 2H+ and O-. In this process, called photolysis, high energy electrons are released and are used to replaced the electrons that have moved from the reaction center of photosystems to be passed down the photosystem protein chain. As the electron from the reaction center passes down this protein chain, their energy is harnessed to pumps H+ ions from the stroma into the lamellae. This proton motive force will then be used to create ATPs by ATP synthase.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.