Question 1

Which process is illustrated in the first image, where two monomers are joined and a water molecule is released?

Accepted Answer

Dehydration synthesis

Question 2

What is the main difference between saturated and unsaturated fatty acids as shown in the sixth image?

Accepted Answer

Saturated fatty acids have only single bonds between carbons, while unsaturated have one or more double bonds.

Question 3

Which of the following best describes the structure shown in the third image?

Accepted Answer

A monosaccharide

Question 4

What type of reaction is shown in the second image, where a polymer is broken down and water is consumed?

Accepted Answer

Hydrolysis

Question 5

Which macromolecule is NOT a true polymer because it is not made from repeating similar monomers?

Accepted Answer

Lipid

Question 6

Refer to the fifth image. What is the atomic number of carbon, and what does it represent?

Accepted Answer

6; the number of protons

Question 7

Which level of protein structure is stabilized primarily by hydrogen bonds, as shown in the ninth image?

Accepted Answer

Secondary structure

Question 8

Which of the following is a function of carbohydrates in living organisms?

Accepted Answer

Providing structural support and energy

Question 9

Which molecule, shown in the fourth image, is formed by joining two monosaccharides through a dehydration reaction?

Accepted Answer

Disaccharide

Question 10

What is the main structural difference between DNA and RNA as shown in the tenth image?

Accepted Answer

DNA contains deoxyribose sugar, while RNA contains ribose sugar.

Question 11

Which of the following best describes the role of phospholipids, as illustrated in the eighth image?

Accepted Answer

They form the main structure of cell membranes.

Question 12

Which type of bond is responsible for holding together the monomers in a protein's primary structure?

Accepted Answer

Peptide bond

Question 13

Which of the following is a purine base found in nucleic acids, as shown in the tenth image?

Accepted Answer

Adenine

Question 14

What is the result of protein denaturation?

Accepted Answer

The protein loses its native conformation and function.

Question 15

Which of the following best explains why lipids are not considered true polymers?

Accepted Answer

They are not made from repeating similar monomers.

Question 16

Which of the following is a function of nucleic acids in cells?

Accepted Answer

Storing and transmitting genetic information

Question 17

Which of the following statements about glycogen is correct?

Accepted Answer

It is a polysaccharide used for energy storage in animals.

Question 18

Which of the following best describes the relationship between monomers and polymers?

Accepted Answer

Polymers are large molecules made from repeating monomers.

Question 19

Which of the following is a real-life example of hydrolysis?

Accepted Answer

Digestion of starch into glucose in the human intestine

Question 20

Which of the following best explains why carbon is the backbone of biological macromolecules?

Accepted Answer

Carbon can form up to four covalent bonds, allowing for complex structures.

Introduction to Macromolecules and Biochemistry

Study Guide - Practice Questions