Which structure of protein gives information aboutnumber and sequence of amino acids in it_______________?
Correct answer: A. Primary structure
- A. Primary structure
- B. Secondary structure
- C. Tertiary structure
- D. Quaternary structure
Explanation
The primary structure of a protein is the exact number and sequence of its amino acids joined by peptide bonds. Secondary, tertiary and quaternary structures describe folding patterns and subunit associations that arise from this sequence. Students may choose c because the tertiary structure gives the overall three-dimensional shape, but it does not directly specify the amino acid sequence.
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About Proteins
Proteins are polymers of amino acids joined by peptide bonds, and their function depends on primary, secondary, tertiary and quaternary structure. The topic covers fibrous and globular proteins, enzymes, antibodies, hormones and transport proteins, as well as denaturation by heat or extreme pH.
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