Question 1

Which of the following molecules from the first image is a hydrocarbon?

Accepted Answer

A

Question 2

Which structural variation of carbon backbones is illustrated by the lower right panel in the second image (showing hexagonal rings with double bonds)?

Accepted Answer

Ring forms

Question 3

Which functional group is shown in the fifth image?

Accepted Answer

Carboxyl group

Question 4

The molecule in the fourth image is an example of which biomolecule monomer?

Accepted Answer

Amino acid

Question 5

Which class of biomolecules does NOT form true polymers, as shown in the seventh image?

Accepted Answer

Lipids

Question 6

Which process, depicted in the tenth image, is responsible for linking monomers together to form polymers?

Accepted Answer

Dehydration synthesis

Question 7

Which of the following best describes the difference between the two carbohydrates shown in the eleventh image?

Accepted Answer

The left is a monosaccharide, the right is a modified carbohydrate with a phosphate group.

Question 8

In the thirteenth image, what type of bond is formed between two glucose molecules to create maltose?

Accepted Answer

Glycosidic bond

Question 9

According to the fourteenth image, which polysaccharide provides structural support in the exoskeletons of lobsters and insects?

Accepted Answer

Chitin

Question 10

Which two functional groups are always present in the amino acid structure shown in the fifteenth image?

Accepted Answer

Carboxyl and amino groups

Question 11

Which level of protein structure is determined by the sequence of amino acids, as shown in the seventeenth image?

Accepted Answer

Primary structure

Question 12

What is the role of chaperone proteins as depicted in the eighteenth image?

Accepted Answer

Assist in protein folding or re-naturing

Question 13

Which three components make up a nucleotide, as shown in the twentieth image?

Accepted Answer

Nitrogenous base, phosphate group, and pentose sugar

Question 14

Which nitrogenous bases are classified as purines, as shown in the twenty-second image?

Accepted Answer

Adenine and guanine

Question 15

Which type of bond links nucleotides together in a nucleic acid polymer, as shown in the twenty-fourth image?

Accepted Answer

Phosphodiester bond

Question 16

Which of the following statements about DNA structure, as shown in the twenty-fifth image, is correct?

Accepted Answer

The two DNA strands are antiparallel

Question 17

Which type of fatty acid, as shown in the twenty-seventh image, contains only single bonds between carbon atoms?

Accepted Answer

Saturated fatty acid

Question 18

What is the major structural difference between phospholipids and triglycerides, as shown in the twenty-ninth image?

Accepted Answer

Phospholipids contain a phosphate group and two fatty acids; triglycerides contain three fatty acids and no phosphate group

Question 19

Which molecule, as shown in the thirtieth image, is a steroid?

Accepted Answer

The molecule with four fused carbon rings

Question 20

Which statement about biological waxes, as shown in the thirty-first image, is correct?

Accepted Answer

They are fatty acids bound to long-chain alcohols

Molecules of Microbiology: Structure, Function, and Classification of Biomolecules

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