$$n \ \text{C}_6\text{H}_{12}\text{O}_6 \rightarrow (\text{C}_6\text{H}_{10}\text{O}_5)_n + n \ \text{H}_2\text{O}$$

Question 1

Which of the following best describes a polysaccharide?

Accepted Answer

A polymer consisting of hundreds to millions of monosaccharide units.

Question 2

What is the primary function of cellulose in plants?

Accepted Answer

Structural support

Question 3

Which of the following is a homopolysaccharide?

Accepted Answer

Glycogen

Question 4

Polysaccharides differ from each other in all of the following ways EXCEPT:

Accepted Answer

Number of peptide bonds

Question 5

Which equation correctly represents the formation of a polysaccharide from monosaccharides?

Accepted Answer

$$n \ 	ext{C}_6	ext{H}_{12}	ext{O}_6 ightarrow (	ext{C}_6	ext{H}_{10}	ext{O}_5)_n + n \ 	ext{H}_2	ext{O}$$

Question 6

Which of the following statements about starch is TRUE?

Accepted Answer

It is a storage polysaccharide in plants composed of glucose units.

Question 7

A patient is diagnosed with a deficiency in the enzyme that breaks down glycogen. Which process will be most directly affected?

Accepted Answer

Short-term energy release during fasting

Question 8

Which of the following best explains why cellulose cannot be digested by humans?

Accepted Answer

Humans lack the enzyme to hydrolyze $$\beta-1$$,4-glycosidic bonds.

Question 9

Which property is shared by both starch and glycogen?

Accepted Answer

Both are composed of glucose monomers.

Question 10

Which of the following is a heteropolysaccharide?

Accepted Answer

Hyaluronic acid

Question 11

A scientist is comparing two polysaccharides. One is highly branched and the other is mostly linear. Which is most likely to be glycogen?

Accepted Answer

The highly branched polysaccharide

Question 12

Which of the following best describes the difference between amylose and amylopectin?

Accepted Answer

Amylose is linear, while amylopectin is branched.

Question 13

Which of the following is NOT a way in which polysaccharides can differ from each other?

Accepted Answer

Number of peptide bonds

Question 14

Which of the following best explains why glycogen is more suitable for rapid energy release than starch?

Accepted Answer

Glycogen is more highly branched, allowing more sites for enzymatic action.

Question 15

Which of the following is a correct statement about homopolysaccharides?

Accepted Answer

They are composed of only one type of monosaccharide.

Polysaccharides: Structure, Types, and Functions

Study Guide - Practice Questions