Proteins SYI QR

Amino acids contain which of the following groups?

• NH2, COOH, and R group
• NH2 and COOH
• COOH and R group
• NH2 and R group

How are amino acids joined to form proteins?

• By peptide bonds
• By hydrogen bonds
• By ionic bonds
• By covalent bonds

How many amino acids are found in a dipeptide?

• One
• Two
• Three or more
• Four

What reaction are amino acids joined to form proteins?

• Chemical
• Metabolic
• Hydrolysis
• Condensation

Which parts of amino acids join together?

• Amine and R group
• R group and carboxyl group
• R group to R group
• Amine and carboxyl group

What part of an amino acid can vary?

• Amine
• R group
• Carboxyl group
• Peptide group

What determines the primary structure of a protein?

• The order and number of amino acids
• Hydrogen bonding
• The shape of the chain
• The R group

Which of the following is a secondary structure of proteins?

• Alpha helix
• Beta glucose
• Globular shape
• Tertiary structure

What type of bonding is responsible for the secondary structure of proteins?

• Hydrogen bonding
• Ionic bonding
• Covalent bonding
• Peptide bonding

What is the tertiary structure of a protein?

• The 3D shape of the protein
• Alpha helix
• Beta pleated sheet
• Covalent bonds