NURSING EXAM QUESTIONS
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What are called the fragments of molecules of amino acids that are fixed with the alfa-carbon?
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Radical
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Side chains/side substituents
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Substituents
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peptides
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Explanation:
Detailed explanation-1: -NH2−CH2−COOH is amino acid, as the amino and carboxylate groups are attached to the same carbon atom.
Detailed explanation-2: -All the amino acids are found in -helices, but glycine and proline are uncommon, as they destabilize the -helix. Glycine is exempt from many steric constraints because it lacks a carbon.
Detailed explanation-3: -Proline is the known amino acid that can disrupt the alpha-helical structure. From all the amino acids, the Nitrogen atom of the amino group of Proline is different.
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