ʺSpecial Pairʺ Is the Name Given to the ________ in the Photochemical

question 52

Multiple Choice

ʺSpecial pairʺ is the name given to the ________ in the photochemical complex of the purple bacteria.

• A) two bacteriochlorophyll a molecules
• B) two bacteriochlorophyll b molecules
• C) two quinones
• D) two reaction centers

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Definitions:

Ions

Ions are atoms or molecules with a net electric charge due to the loss or gain of one or more electrons.

Carbon Dioxide

Carbon dioxide is a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air and is absorbed by plants in photosynthesis.

Molecule

The smallest unit of a chemical substance that retains its chemical properties, consisting of two or more atoms bonded together.

Compound

A substance made up of two or more elements chemically combined in fixed proportions.