B1.2 Proteins MCQ

What is the relationship between amino acid sequence and the diversity in form and function of proteins?

• C. Amino acid sequence is only related to the form of proteins

• B. Amino acid sequence determines the diversity in form and function of proteins

• A. Amino acid sequence has no impact on the diversity in form and function of proteins

• D. Amino acid sequence is only related to the function of proteins

Tags

NGSS.HS-LS1-1

How are protein molecules affected by their chemical and physical environments?

• A. Protein molecules are not affected by their environments

• B. Protein molecules are only affected by their chemical environments

• D. Protein molecules are affected by both their chemical and physical environments

• C. Protein molecules are only affected by their physical environments

What is the generalized structure of an amino acid?

• D. Amine Group, Carboxylic Acid Group, Side Chain (R Group), and Hydrogen attached to a central alpha carbon

• C. Side Chain (R Group) only

• B. Carboxylic Acid Group only

• A. Amine Group only

Tags

NGSS.HS-LS1-1

What is the word equation for the formation of dipeptides?

• A. Amino Acid + Amino Acid = Dipeptide

• D. Amino Acid + Carbon = Dipeptide

• B. Amino Acid + Water = Dipeptide

• C. Amino Acid + Oxygen = Dipeptide

What is the function of essential amino acids in the diet?

• D. Essential amino acids are only found in animal products

• A. Essential amino acids can be synthesized by the body

• B. Essential amino acids must be obtained from food

• C. Essential amino acids are not important for health

What is denaturation in proteins?

• A. Denaturation is the formation of proteins

• B. Denaturation is the breakdown of proteins

• C. Denaturation is the change in shape of proteins resulting in loss of function

• D. Denaturation is the synthesis of proteins

What determines the shape of proteins?

• D. The size of amino acids

• C. The sequence of amino acids

• B. The type of amino acids

• A. The number of amino acids

Tags

NGSS.HS-LS1-1

What is the primary protein structure based on?

• B. The interactions between R groups

• A. The folding of the polypeptide

• D. The formation of disulfide bonds

• C. The number and sequence of amino acids

Tags

NGSS.HS-LS1-1

What is the tertiary structure of proteins dependent on?

• A. Hydrogen bonds only

• B. Ionic bonds only

• C. Covalent bonds only

• D. Hydrogen bonds, ionic bonds, disulfide covalent bonds, and hydrophobic interactions

How do globular and fibrous proteins differ?

• D. Globular proteins are structural, fibrous proteins are functional

• A. Globular proteins are insoluble, fibrous proteins are soluble

• B. Globular proteins have a long and narrow shape, fibrous proteins are spherical

• C. Globular proteins have a repetitive amino acid sequence, fibrous proteins have an irregular sequence