Question

plete the following paragraph to describe how polypeptides are constructed from amino acids.
proteins are composed of __________ that contain a(n)
__________ group, an acid group, and a variable r group.

these groups are arranged around a central __________
atom.

a ________ reaction joins the ________ together,
forming a(n) ________ bond called a ________
bond.

when two or more __________ are bonded together, a
________ is formed and when a chain of ________
are bonded together, a __________ is formed.

the sequence of __________ greatly influence the behavior
and function of the resulting __________ .

options: amino, lipids, covalent, carboxyl, polypeptide, sulfur, dehydration, carbon, nucleotides, ionic, peptide, amino acids

Explanation:

1. Proteins are made of amino acids, which have an amino group, acid (carboxyl) group, and R group. So first blank: amino acids; second: amino.
2. Amino acids have groups around a central carbon atom. So blank: carbon.
3. Dehydration reaction joins amino acids, forming a covalent peptide bond. So blanks: dehydration, amino acids, covalent, peptide.
4. Two or more amino acids form a peptide; a chain of amino acids forms a polypeptide. So blanks: amino acids, peptide, amino acids, polypeptide.
5. Amino acid sequence influences protein (polypeptide) function. So blanks: amino acids, polypeptide (or protein).

Answer:

1. Proteins are composed of \textbf{amino acids} that contain a(n) \textbf{amino} group, an acid group, and a variable R group.
2. These groups are arranged around a central \textbf{carbon} atom.
3. A \textbf{dehydration} reaction joins the \textbf{amino acids} together, forming a(n) \textbf{covalent} bond called a \textbf{peptide} bond.
4. When two or more \textbf{amino acids} are bonded together, a \textbf{peptide} is formed and when a chain of \textbf{amino acids} are bonded together, a \textbf{polypeptide} is formed.
5. The sequence of \textbf{amino acids} greatly influence the behavior and function of the resulting \textbf{polypeptide} (or \textbf{protein}).