Lecture 5 Part 1 - MC

Question 1

What is the primary difference in the structure of glucose and galactose?

A) Number of carbon atoms
B) Orientation of the hydroxyl (HO) groups
C) Presence of hydrogen atoms
D) Type of glycosidic bonds

Answer 1

Correct Answer: B) Orientation of the hydroxyl (HO) groups

Question 1

Which of the following carbohydrates is not hydrolyzed by human digestive enzymes?

A) Glucose
B) Stachyose
C) Amylose
D) Amylopectin

Answer 1

B) Stachyose

Question 2

Amylose and Amylopectin are both forms of which type of carbohydrate?

A) Disaccharides
B) Monosaccharides
C) Oligosaccharides
D) Polysaccharides

Answer 2

Correct Answer: D) Polysaccharides

Question 3

Which type of glycosidic bond is exclusive to amylose?

A) Alpha(1-6)
B) Alpha(1-4)
C) Beta(1-4)
D) Beta(1-6)

Answer 3

B) Alpha(1-4)

Question 4

Which polysaccharide is the primary storage form of glucose in the human body?

A) Amylopectin
B) Cellulose
C) Glycogen
D) Stachyose

Answer 4

Correct Answer: C) Glycogen

Question 5

What characteristic distinguishes cellulose from starches like amylose and amylopectin?

A) Cellulose is a linear chain of glucose molecules.
B) Cellulose is composed entirely of alpha(1-6) glycosidic bonds.
C) Cellulose contains beta(1-4) glycosidic bonds, making it indigestible by humans.
D) Cellulose is stored in human muscles and liver.

Answer 5

Correct Answer: C) Cellulose contains beta(1-4) glycosidic bonds, making it indigestible by humans.

Question 6

What is the primary role of glycogen in the body?

A) To serve as structural support in plant cell walls
B) To store glucose in a highly branched form
C) To emulsify fats in the digestive system
D) To break down proteins and fats

Answer 6

B