Question

question 22
2 points
proteins come in four categories. which category best describes a protein which consists of long chains of amino acids that resemble a string of beads.
a tertiary structure
b primary structure
c secondary structure
d quaternary structure

Explanation:

• Primary structure: It is the linear sequence of amino acids in a protein, like a string of beads (amino acids) connected in a chain.
• Secondary structure: Involves local folding (e.g., alpha - helices, beta - sheets) due to hydrogen bonding.
• Tertiary structure: Overall 3 - D shape from interactions like hydrophobic interactions, disulfide bonds etc.
• Quaternary structure: Association of multiple polypeptide chains.

Answer:

B. primary structure