AP Biology Unit 1 Proteins

Which of the following element(s) are found in proteins?

• Carbon / Hydrogen

• Oxygen

• Phosphorus

• Nitrogen

• Sulfur

Tags

NGSS.HS-LS1-6

Which of the following is the monomer of a protein?

• Amino acid

• Monosaccharide

• Nucleotide

• Steroid

Tags

NGSS.HS-LS1-6

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

• Amino

• Carboxyl

• Hydroxyl

• Sulfhydryl

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

• Carboxyl group of first amino acid binds with carboxyl group of second amino acid

• Carboxyl group of first amino acid binds with amino group of second amino acid

• R group of first amino acid binds with R group of second amino acid

• Amino group of first amino acid binds with amino group of second amino acid

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

• Hydrogen

• Peptide

• Covalent

• Ionic

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

• Primary

• Secondary

• Tertiary

• Quaternary

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?

• Exterior of protein due to negative charge providing hydrophilic properties

• Exterior of protein due to negative charge providing hydrophobic properties

• Interior of protein due to negative charge providing hydrophobic properties

• Interior of protein due to negative charge providing hydrophilic properties

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

• A-terminus

• C-terminus

• N-terminus

• S-terminus

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

• A-terminus

• C-terminus

• N-terminus

• S-terminus

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

• 19

• 20

• 21

• 22