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What happens when a photon of light strikes a chlorophyll molecule? A. Chlorophyll generates ATP...

Question:

What happens when a photon of light strikes a chlorophyll molecule?

A. Chlorophyll generates ATP by breaking down glucose molecules.

B. Chlorophyll catalyzes a reaction between carbon dioxide and RUBP.

C. Chlorophyll donates an electron to water.

D. Chlorophyll donates an electron to an electron acceptor.

Light Dependent Reactions:

The light dependent reactions of photosynthesis rely on the energy of a photon to excite electrons to higher energy levels. The light dependent reactions occurs in the thylakoid membrane of chloroplast. The light dependent reactions are responsible for producing the necessary energy for the light independent reactions.

Answer and Explanation:

When a photon of light strikes a chlorophyll molecule chlorophyll will donate the electron to an electron's acceptor, which is continuously passed along creating a chain of redox reactions. These reactions that occur are called the electron transport chain. Water is the first electron donor, which donates an electron to chlorophyll.

Answered choice D


Learn more about this topic:

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Photolysis and the Light Reactions: Definitions, Steps, Reactants & Products

from Biology 101: Intro to Biology

Chapter 8 / Lesson 8
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