Which Statement About Secondary Structures Is FALSE

question 20

Multiple Choice

Which statement about secondary structures is FALSE?

• A) Some proteins only contain α-helices or β sheets.
• B) Structural proteins often contain only β sheets.
• C) Secondary structure is stabilized by hydrogen bonding between amides in the polypeptide backbone.
• D) Side chains are involved in the hydrogen bonds that stabilize the secondary structure.
• E) A protein can contain both α-helices and β sheets.

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Definitions:

Bodily Humors

An ancient medical theory suggesting that the health and temperament of the human body are determined by a balance among four bodily fluids: blood, phlegm, black bile, and yellow bile.

Black Bile

Black bile, one of the four humors in ancient Greek medicine, was believed to be associated with melancholy and sadness, representing a historical understanding of bodily fluids affecting temperament.

Frontal Lobe Damage

Impairment or injury to the frontal lobes of the brain, which can affect personality, decision making, and control over behavior.

Language Abilities

The capacity to understand, produce, and use complex systems of communication, particularly the ability to do so verbally.