Question

A review of the light-dependent reaction:


Water H+ Stroma NADPH

Electron Absorbing NADPH+ ATP

Chlorophyll a Concentration





There are several pigments found in chloroplasts of leaves that aid in ___________________ light. When light is absorbed by leaf pigments, electrons within each photosystem (made of pigment proteins) are boosted to a higher energy level. One of these pigments, _____________ ____ is known as the reaction center and when it is energized, it donates an ______________________ which is passed down an electron transport chain which is similar to one found in the mitochondria. The electron donated from PSII replaces the electron donated by PSI. The energy given off by the electron donated in PSI is used to reduce _________ to __________ (one of the products of the light-dependent reactions). NADP+ is considered the final _____________ acceptor in this electron transport system. The energy given off by the electrons as they are passed down a chain of proteins is harvested to pump ________ ions into the lumen (middle) of the thylakoid membrane of the chloroplast. Additional H+ ions build up in the lumen due to ___________ splitting. Once a _________________ gradient of H+ ions builds in the lumen, H+ ions begin to leak through a channel back into the ___________ of the chloroplast (an acidic fluid). ATP synthase is part of this channel and as a result of H+ ions leaking, it changes shape adding a free phosphate to ADP in order to generate new _________ molecules, the second product of the light reaction.







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Answer 1

Answer:

absorbing

chlorophyll A

electron

NADP+ to NADPH

electron or Hydrogen

H+

water or H2O splitting

concentration gradient

stroma

ATP

Answer 2

Answer:

को h ह्य

Nnnkk

Explanation:

H धन v5 Fig वो

. G महज हम की

गठन तो हम

फ़ू नल को h

Ghh