Question 1

A scientist wants to test the effect of a new fertilizer on plant growth. She sets up two groups of plants: one receives the fertilizer, and the other does not. All other conditions are kept constant. What is the independent variable in this experiment?

Accepted Answer

The type of fertilizer used

Question 2

Which of the following best describes a hypothesis?

Accepted Answer

A testable prediction based on observations

Question 3

Which of the following is an example of a controlled variable in an experiment testing the effect of temperature on enzyme activity?

Accepted Answer

The type of enzyme used

Question 4

Which of the following is NOT a characteristic of living organisms?

Accepted Answer

Ability to move voluntarily

Question 5

Which of the following statements about isotopes is TRUE?

Accepted Answer

Isotopes have the same number of protons but different numbers of neutrons

Question 6

A single covalent bond involves the sharing of how many electrons?

Accepted Answer

$$2$$

Question 7

If a solution measures $$3 on $$the pH scale, that solution:

Accepted Answer

Has a high concentration of $$\mathrm{H^+}$$ ions

Question 8

What happens when hydrochloric acid ($$\mathrm{HCl}) is $$added to pure water?

Accepted Answer

The concentration of $$\mathrm{H^+}$$ ions increases

Question 9

How do buffers help maintain pH in biological systems?

Accepted Answer

They accept or release $$\mathrm{H^+}$$ ions

Question 10

Which of the following is a function of glycogen in vertebrate animals?

Accepted Answer

Energy storage

Question 11

Which of the following is NOT a nucleic acid or nucleotide?

Accepted Answer

Collagen

Question 12

Which of the following is associated with rough endoplasmic reticulum (ER)?

Accepted Answer

Protein synthesis

Question 13

Which of the following is NOT a feature of a prokaryotic cell?

Accepted Answer

Nucleus

Question 14

Which organelle packages enzymes and forms lysosomes?

Accepted Answer

Golgi apparatus

Question 15

The formation of ATP in the mitochondria, which is an oxygen-dependent reaction, is called what?

Accepted Answer

Aerobic metabolism

Question 16

Which of the following is NOT a function of plastids?

Accepted Answer

Converting food into ATP

Question 17

A scientist is studying a cell that contains a nucleus, mitochondria, and chloroplasts. Which type of organism is this cell most likely from?

Accepted Answer

A plant

Question 18

Which of the following best explains why water is a good solvent for ionic compounds?

Accepted Answer

Water is a polar molecule

Question 19

Which of the following is a property of water that helps moderate Earth's climate?

Accepted Answer

High specific heat

Question 20

Which of the following is a correct statement about dehydration synthesis?

Accepted Answer

It joins monomers by removing a molecule of water

General Biology: Foundational Concepts and Review Questions (Ch. 1–4)

Study Guide - Practice Questions

Study Guide - Flashcards