Movement of Matter or Energy in Nature May Be the Result

question 49

Multiple Choice

Movement of matter or energy in nature may be the result of

• A)concentration gradients.
• B)differential pressures.
• C)differences in electrical charges.
• D)the existence of thermal differentials.
• E)all of these.

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Definitions:

Electron Transport System

A series of compounds that transfer electrons from electron donors to electron acceptors via redox reactions, generating ATP.

ATP

Adenosine triphosphate, a molecule used as the primary energy carrier in cells for metabolic processes.

NADPH

Nicotinamide adenine dinucleotide phosphate, a cofactor used in anabolic reactions, such as lipid and nucleic acid synthesis, which requires reducing power.

PGA

A common abbreviation with multiple meanings; in a biological context, it could refer to Phenylglyoxylic acid, otherwise, it's often used for Professional Golfers' Association.