What Do Free Radicals Do

question 50

Multiple Choice

What do free radicals do?  

• A)Improve the efficiency of aerobic respiration.
• B)Act as coenzymes in glycolysis.
• C)Damage biological molecules.
• D)Remove metals that combine with oxygen gas.
• E)Enhance enzyme activity.

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Definitions:

Ctenophores

Phylum of marine animals (comb jellies) whose bodies consist of two layers of cells enclosing a gelatinous mass. The outer surface is covered with comblike rows of cilia, by which the animal moves.

Nematocysts

Specialized cells in cnidarians (like jellyfish) that shoot out a toxic barb in self-defense or to capture prey.

Biradially Symmetrical

A type of symmetry in organisms where the body can be divided into mirror-image halves in two different planes.

Cnidarian

A group of aquatic invertebrates known for their stinging cells, including jellyfish, corals, and sea anemones.