Question 1

Which of the following is NOT a characteristic shared by all living things?

Accepted Answer

They do not respond to their environment.

Question 2

Which step of the scientific method involves making an educated guess that can be tested?

Accepted Answer

Hypothesis

Question 3

Which of the following elements is NOT one of the main elements found in living organisms?

Accepted Answer

Calcium

Question 4

Water is essential for life because it is a polar molecule. What property does this give water?

Accepted Answer

It sticks to itself and other things (cohesion and adhesion).

Question 5

Which macromolecule is primarily responsible for storing genetic information?

Accepted Answer

Nucleic acids

Question 6

Which of the following structures is found in eukaryotic cells but NOT in prokaryotic cells?

Accepted Answer

Nucleus

Question 7

A plant cell is placed in a solution where water moves into the cell. What process is responsible for this movement?

Accepted Answer

Osmosis

Question 8

Which equation correctly represents cellular respiration?

Accepted Answer

$$\mathrm{Glucose} + \mathrm{O}_2 \rightarrow \mathrm{CO}_2 + \mathrm{H}_2\mathrm{O} + \mathrm{ATP}$$

Question 9

Which organelle is responsible for producing ATP in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 10

Which process allows plants to convert sunlight into chemical energy?

Accepted Answer

Photosynthesis

Question 11

Which of the following best describes the outcome of mitosis?

Accepted Answer

Two identical cells

Question 12

Which bases pair together in DNA?

Accepted Answer

A with T, C with G

Question 13

Natural selection is best described as:

Accepted Answer

The process by which the best-adapted organisms survive and reproduce

Question 14

Which of the following is the correct order of biological organization from smallest to largest?

Accepted Answer

Organism → Population → Community → Ecosystem

Question 15

Which domain includes organisms with a nucleus?

Accepted Answer

Eukarya

Question 16

Which of the following is a decomposer in an ecosystem?

Accepted Answer

Fungus

Question 17

A scientist observes that a certain plant grows faster in sunlight than in shade. What is the next step in the scientific method?

Accepted Answer

Form a hypothesis

Question 18

Which cell structure is responsible for controlling what enters and exits the cell?

Accepted Answer

Cell membrane

Question 19

Which of the following best explains why water is important for regulating temperature in living organisms?

Accepted Answer

Water has a high specific heat, allowing it to absorb and release heat slowly.

Question 20

Which of the following kingdoms contains only multicellular, autotrophic organisms?

Accepted Answer

Plantae

Comprehensive Study Notes: Introduction to Biology and Core Concepts

Study Guide - Practice Questions