What Structural Feature Makes the 20 Common Amino Acids Different

question 19

Multiple Choice

What structural feature makes the 20 common amino acids different from one another?

• A)different side chains (R groups)attached to the carboxyl carbon
• B)different side chains (R groups)attached to the amino groups
• C)different side chains (R groups)attached to an α carbon
• D)different asymmetric carbons

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Definitions:

Chemoheterotrophs

Organisms that obtain their energy by consuming organic molecules created by other organisms.

Vector

In biology, an organism that transmits a disease or parasite from one animal or plant to another. In mathematics and physics, it represents a quantity having both magnitude and direction.

Pilus

A thin, hair-like structure on the surface of some bacteria that is involved in adherence to surfaces or in the transfer of genetic material.

Capsule

A small container or covering, often used for medication, or the outer layer of some plant seeds or spores.