Question 1

Which of the following best describes a polymer in biological systems?

Accepted Answer

A molecule made up of repeating units called monomers linked by covalent bonds.

Question 2

Which process is responsible for joining monomers together to form a polymer, and what is the byproduct of this reaction?

Accepted Answer

Dehydration reaction; water ($H_2O$) is released.

Question 3

Which class of biological macromolecules is NOT considered a polymer?

Accepted Answer

Lipids

Question 4

A hydrolysis reaction in a cell is most likely to:

Accepted Answer

Break a polymer into its monomer subunits by adding water ($H_2O$).

Question 5

If a polymer is composed of 8 monomers, how many water molecules are required to completely hydrolyze it into monomers?

Accepted Answer

$7$

Question 6

Which of the following is a correct pairing of a biological macromolecule and its monomer?

Accepted Answer

Protein – Amino acid

Question 7

Which statement best explains why lipids are not considered true polymers?

Accepted Answer

Lipids are not made from repeating monomer subunits linked in a chain.

Question 8

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

Accepted Answer

Providing energy and structural support.

Question 9

A student is studying a molecule that consists of a long chain of nucleotides. Which type of biological macromolecule is this?

Accepted Answer

Nucleic acid

Question 10

Which of the following best describes the difference between a dehydration reaction and a hydrolysis reaction?

Accepted Answer

Dehydration reaction forms polymers by removing water; hydrolysis breaks polymers by adding water.

Question 11

Which of the following is the correct term for a polymer made up of five monomers?

Accepted Answer

Pentamer

Question 12

Which biological macromolecule is primarily responsible for catalyzing chemical reactions in cells?

Accepted Answer

Proteins

Question 13

Which of the following is NOT a function of nucleic acids?

Accepted Answer

Forming cell membranes

Question 14

A molecule composed of 16 monomers is called a:

Accepted Answer

16-mer

Question 15

Which of the following statements about monomers and polymers is correct?

Accepted Answer

Monomers are the building blocks that link together to form polymers.

Question 16

Which of the following is a real-life example of a dehydration reaction in the human body?

Accepted Answer

Formation of glycogen from glucose monomers in the liver.

Question 17

Which of the following best explains why hydrolysis reactions are important for digestion?

Accepted Answer

They break down large polymers into smaller monomers that can be absorbed.

Question 18

Which of the following is the correct sequence for the formation of a polymer from monomers?

Accepted Answer

Monomer $\rightarrow$ Dimer $\rightarrow$ Trimer $\rightarrow$ Tetramer $\rightarrow$ Polymer

Biological Macromolecules: Structure, Function, and Polymerization

Study Guide - Practice Questions