The R Group or Side Chain of the Amino Acid

question 43

Multiple Choice

The R group or side chain of the amino acid serine is -CH₂-OH. The R group or side chain of the amino acid alanine is -CH₃. Where would you expect to find these amino acids in a globular protein in aqueous solution?

• A)Serine would be in the interior, and alanine would be on the exterior of the globular protein.
• B)Alanine would be in the interior, and serine would be on the exterior of the globular protein.
• C)Both serine and alanine would be in the interior of the globular protein.
• D)Both serine and alanine would be on the exterior of the globular protein.
• E)Both serine and alanine would be in the interior and on the exterior of the globular protein.

---

Definitions:

Korsakoff Syndrome

A chronic memory disorder caused by severe deficiency of thiamine (vitamin B1), most commonly due to alcohol misuse, characterized by memory loss and confabulation.

Apraxia

A neurological condition characterized by the inability to perform movements or gestures, despite having the desire and physical capability to do so.

Agnosia

A neurological condition where a person is unable to recognize and identify objects, persons, sounds, shapes, or smells, despite having the necessary sensory functions.

Aphasia

A condition that impairs a person's ability to process language, affecting speech, writing, and the ability to understand language.