Question 1

Which type of bond is most commonly formed between carbon atoms in organic molecules?

Accepted Answer

Covalent bond

Question 2

During the polymerization of glucose molecules to form starch, which molecule is lost in the process?

Accepted Answer

Water ($$H_2O)$$

Question 3

Which reaction breaks down polymers into monomers by adding water?

Accepted Answer

Hydrolysis

Question 4

How do functional groups affect hydrocarbon chains?

Accepted Answer

They alter the chemical properties and reactivity of the chains.

Question 5

Which of the following is NOT one of the four major groups of biological macromolecules?

Accepted Answer

Vitamins

Question 6

Which of the following pairs correctly matches a macromolecule with its monomer?

Accepted Answer

Carbohydrate - Monosaccharide

Question 7

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

Accepted Answer

Energy storage

Question 8

Which structural feature distinguishes an unsaturated fat from a saturated fat?

Accepted Answer

Double bonds between carbon atoms

Question 9

Proteins are polymers made up of which type of monomer?

Accepted Answer

Amino acids

Question 10

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

Accepted Answer

A phosphate group, a pentose sugar, and a nitrogenous base

Question 11

Which sugar is found in RNA but not in DNA?

Accepted Answer

Ribose

Question 12

Which of the following best defines an acid?

Accepted Answer

A substance that increases the concentration of $$H^+$$ ions in solution

Question 13

What is the pH range for acidic solutions?

Accepted Answer

$$0 to$$ $$7$$

Question 14

Which of the following is an example of a dehydration reaction?

Accepted Answer

Linking two monosaccharides to form a disaccharide and releasing water

Question 15

Which of the following is a dimer of carbohydrates?

Accepted Answer

Sucrose

Question 16

Which macromolecule is most directly involved in storing genetic information?

Accepted Answer

Nucleic acid

Question 17

Which of the following best describes the process of hydrolysis?

Accepted Answer

Breaking a polymer into monomers by adding a water molecule

Question 18

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

Accepted Answer

Long-term energy storage

Question 19

Which of the following is a polymer of nucleotides?

Accepted Answer

DNA

Question 20

Which of the following statements about proteins is correct?

Accepted Answer

Proteins are the most abundant macromolecule in the human body.

Biology Study Guide: Macromolecules, Chemical Reactions, and Acids

Study Guide - Practice Questions