Quick 10Q: Proteins Structure

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 describes 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