Question

Proteins differ from one another because
A) The peptide bonds linking amino acids differ from protein to protein
B) Each protein contains its own unique sequence of sugar molecules
C) The number of nucleotides found in each protein varies from molecule to molecule
D) The sequence of amino acids in the polypeptide chain differs from protein to protein

Answer 1

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answer is (d)

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Answer 2

Answer:

Proteins differ from one another because each protein contains its own unique sequence of sugar molecules.

correct answer is B) Each protein contains its own unique sequence of sugar molecules

Explanation:

Proteins are macromolecular polypeptides—i.e., very large molecules (macromolecules) composed of many peptide-bonded amino acids. Most of the common ones contain more than 100 amino acids linked to each other in a long peptide chain.

Proteins are made up of amino acids that join together to form long chains. You can think of a protein as a string of beads in which each bead is an amino acid. There are 20 amino acids that help form the thousands of different proteins in your body. Proteins do most of their work in the cell and perform various jobs.

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