Protein Lecture 2 Part 1 - MC

Question 1

What percentage of body weight is typically made up of proteins?

A) 5%
B) 15%
C) 25%
D) 35%

Answer 1

B

Question 2

Which type of protein is primarily involved in the structure of tissues like muscles and bones?

A) Enzyme proteins
B) Structural proteins
C) Transport proteins
D) Protective proteins

Answer 2

B

Question 3

What is the primary role of enzyme proteins such as amylase?

A) To transport oxygen
B) To catalyze biochemical reactions
C) To provide structural support
D) To regulate body temperature

Answer 3

B

Question 4

Which proteins are crucial for maintaining fluid balance through osmosis?

A) Structural proteins
B) Contractile proteins
C) Proteins for fluid balance
D) Protein-derived hormones

Answer 4

C

Question 5

Amino acids are characterized by all of the following except:

A) An amino group
B) A carboxyl group
C) An oxygen molecule as the central atom
D) An “R” side chain

Answer 5

C

Question 6

Which amino acids are considered essential?

A) Those that can be synthesized de novo by the body
B) Those that cannot be synthesized de novo and must be obtained through diet
C) Those that are only needed during illness and stress
D) All amino acids are essential

Answer 6

B

Question 7

Which description best matches aromatic amino acids?

A) They contain a straight or branched carbon chain
B) They contain a ring structure and include tryptophan, tyrosine, phenylalanine
C) They carry a net positive charge
D) They are hydrophobic and interact with water

Answer 7

B