______ Prevent or Limit the Ability of Free Radicals to Damage

question 54

Multiple Choice

______ prevent or limit the ability of free radicals to damage polyunsaturated fatty acids and DNA in cells.

• A)Phosphates
• B)Antioxidants
• C)Antidotes
• D)Oxidizing agents

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Definitions:

Crepuscular

Pertaining to animals that are active primarily during twilight, i.e., at dawn and dusk.

Nocturnal

Describing organisms that are active primarily during the night and sleep during the day.

Diurnal

Describing organisms active during the day and resting at night; also pertains to daily cycles of light and darkness.

Biological Clocks

Biological clocks are internal mechanisms in organisms that regulate cycles of activity and rest, including sleep-wake cycles and hormonal changes, in accordance with environmental changes.