Which Level of Structural Organization Best Describes the A-Helix and B-Strand

question 31

Multiple Choice

Which level of structural organization best describes the a-helix and b-strand components of protein structure?

• A)primary
• B)secondary
• C)tertiary
• D)quaternary

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Definitions:

Maxilla

The upper jawbone, forming the central part of the face above the mouth.

Meniscus

A crescent-shaped fibrocartilaginous structure in the knee that acts as a shock absorber between the thigh bone and the shin bone.

Menisc

A crescent-shaped fibrocartilaginous anatomical structure that partly divides a joint cavity and can refer specifically to the ones in the knee.

Vertebrae

The individual bones that stack to form the vertebral column (spine) in vertebrates.