Question 1

Which of the following best describes a dehydration reaction in the synthesis of macromolecules?

Accepted Answer

A reaction in which a water molecule is removed to form a new bond between monomers.

Question 2

Which of the following is NOT considered a true polymer?

Accepted Answer

Lipids

Question 3

A biologist is studying a molecule with the formula $C_{6}H_{12}O_{6}$. Which class of macromolecule does this molecule most likely belong to?

Accepted Answer

Carbohydrate

Question 4

Which of the following statements about hydrolysis is correct?

Accepted Answer

Hydrolysis adds a water molecule, breaking a bond between monomers.

Question 5

Which of the following is a correct example of a monomer and its corresponding polymer?

Accepted Answer

Amino acid and protein

Question 6

A scientist observes that a certain macromolecule is composed of many similar building blocks joined by covalent bonds. Which term best describes this macromolecule?

Accepted Answer

Polymer

Question 7

Which of the following is a distinguishing feature of lipids compared to other macromolecules?

Accepted Answer

They are hydrophobic due to their hydrocarbon content.

Question 8

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

Accepted Answer

They are not composed of monomer subunits.

Question 9

If a cell needs to break down a polysaccharide into its monosaccharide components, which type of reaction will it use?

Accepted Answer

Hydrolysis

Question 10

Which of the following is a correct statement about the four classes of life's organic molecules?

Accepted Answer

Proteins, carbohydrates, and nucleic acids are all polymers, but lipids are not true polymers.

Question 11

A dehydration reaction between two glucose molecules results in the formation of which type of bond?

Accepted Answer

Glycosidic linkage

Question 12

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

Accepted Answer

Monomers are joined together by dehydration reactions to form polymers.

Question 13

Which of the following is a real-world example of a dehydration reaction?

Accepted Answer

Forming a protein from amino acids during translation in a ribosome

Question 14

Which of the following statements about carbohydrates is correct?

Accepted Answer

Monosaccharides are the simplest carbohydrates and have molecular formulas that are usually multiples of $CH_2O$.

Question 15

Which of the following is a correct pairing of a macromolecule class and a specific example?

Accepted Answer

Carbohydrate – starch

Chapter 5: The Macromolecules of Life – Structure and Function

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