Question 1

Which of the following elements are found in proteins?

Accepted Answer

C, H, O, N, P, S

Answer

C, H, O

Answer

C, H, O, N, P

Answer

C, H, O, N

Question 2

Which of the following is the monomer of a protein?

Accepted Answer

amino acid

Answer

nucleotide

Answer

monosaccharide

Answer

steroid

Question 3

Which of the following functional groups are found in all amino acids?

Accepted Answer

amino and carboxyl groups

Answer

amino and sulfhydryl

Answer

carboxyl and sulfhydryl

Question 4

Which of the following describes the dehydration reaction of two amino acids?

Accepted Answer

Carboxyl group of the first amino acid binds with the amino group of the second amino acid.

Answer

Amino group of the first amino acid binds with the amino group of the second amino acid.

Answer

Carboxyl group of the first amino acid binds with the carboxyl group of the second amino acid.

Answer

R group of the first amino acid binds with the R group of the second amino acid.

Question 5

Which of the following bonds is found in the secondary structure of a protein?

Accepted Answer

hydrogen

Answer

covalent

Answer

peptide

Answer

ionic

Question 6

Which of the following structures involves the R groups interacting in a single polypeptide?

Accepted Answer

tertiary

Answer

quaternary

Answer

primary

Answer

secondary

Question 7

The amino acid glutamic acid has a R group with a negative charge. During folding, which of the following describes the orientation of the R group?

Accepted Answer

Exterior protein due to the negative charge providing hydrophilic properties.

Answer

Interior protein due to the negative charge providing hydrophilic properties.

Answer

Exterior protein due to the negative charge providing hydrophobic properties.

Answer

Interior protein due to the negative charge providing hydrophobic properties.

Question 8

In terms of directionality of the protein, which of the following provides naming for the side with the amino group?

Accepted Answer

N-terminus

Answer

S-terminus

Answer

A-terminus

Answer

C-terminus

Question 9

In terms of directionality of the protein, which of the following provides naming for the side with the carboxyl group?

Accepted Answer

C-terminus

Answer

A-terminus

Answer

S-terminus

Answer

N-terminus

Question 10

Which of the following identifies the number of water molecules needed to remove the amino acids from a polypeptide with 20 amino acids?

Accepted Answer

19

Answer

21

Answer

22

Answer

20

Related quizzes

Related quizzes