What Two Types of Secondary Structure Are Depicted in the Ribbon

question 31

Multiple Choice

What two types of secondary structure are depicted in the ribbon diagram of the protein shown below?

• A)β-spirals and α-turns
• B)double stranded helices and β-arrays
• C)random coils and β-arrays
• D)α-helices and β-pleated sheets
• E)α-spirals and β-turns

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Definitions:

Pitch

In music, the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.

Absolute Threshold

The minimum amount of stimulation needed for a stimulus to be detected by the senses.

Loudness

The subjective perception of the intensity of sound, often associated with the amplitude of sound waves.

Activated Hair Cells

Sensory cells located in the inner ear that are responsible for converting sound vibrations into electrical signals that can be interpreted by the brain.