Question 1

Which of the following best describes the difference between a monomer and a polymer in organic molecules?

Accepted Answer

A monomer is a single molecule that can join with others to form a polymer, while a polymer is a chain of monomers.

Question 2

Which chemical reaction is responsible for joining two monosaccharides to form a disaccharide?

Accepted Answer

Dehydration synthesis reaction

Question 3

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

Accepted Answer

Starch and glucose

Question 4

A patient is diagnosed with a deficiency in phospholipids. Which cellular structure would most likely be affected?

Accepted Answer

Cell membrane

Question 5

Which of the following best describes the structure of a triglyceride?

Accepted Answer

Three fatty acids bonded to a glycerol molecule

Question 6

Which of the following is a saturated fatty acid?

Accepted Answer

A fatty acid with only single bonds between carbon atoms

Question 7

Which of the following is the correct formula for glucose?

Accepted Answer

$$C_6H_{12}O_6$

Question 8

Which of the following is NOT a function of proteins in living organisms?

Accepted Answer

Storing genetic information

Question 9

Which molecule is the primary energy currency of the cell?

Accepted Answer

ATP

Question 10

Which of the following best describes the difference between DNA and RNA?

Accepted Answer

DNA contains the sugar deoxyribose, while RNA contains the sugar ribose.

Question 11

Which of the following is a correct pairing of a nitrogenous base in DNA?

Accepted Answer

Adenine pairs with Thymine

Question 12

Which of the following is a function of enzymes in biological systems?

Accepted Answer

Speeding up chemical reactions by lowering activation energy

Question 13

A dehydration synthesis reaction results in which of the following?

Accepted Answer

Formation of a covalent bond and release of water

Question 14

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

Accepted Answer

Providing energy for cellular processes

Question 15

Which of the following is a correct example of a nucleic acid and its monomer?

Accepted Answer

DNA and nucleotide

Question 16

Which of the following is a function of phospholipids in cells?

Accepted Answer

Forming the bilayer structure of cell membranes

Question 17

Which of the following is a correct description of an amino acid?

Accepted Answer

A molecule containing an amino group, a carboxyl group, and a variable R group

Question 18

Which of the following is a correct example of a polysaccharide?

Accepted Answer

Cellulose

Question 19

Which of the following is a function of nucleic acids in living organisms?

Accepted Answer

Storing and transmitting genetic information

Question 20

Which of the following is a correct description of ATP?

Accepted Answer

A molecule that stores and transfers energy within cells

Key Vocabulary for Organic Molecules (General Biology Ch. 5)

Study Guide - Practice Questions