Question 1

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

Accepted Answer

They do not require energy.

Question 2

Which of the following is a function of the plasma membrane in cells?

Accepted Answer

It regulates the movement of substances into and out of the cell.

Question 3

Which of the following is a product of cellular respiration?

Accepted Answer

Carbon dioxide

Question 4

A scientist observes that a certain enzyme works best at pH 7. What would likely happen if the pH is changed to 3?

Accepted Answer

The enzyme would denature and lose function.

Question 5

Which of the following best describes the role of ribosomes in a cell?

Accepted Answer

They assemble amino acids into proteins.

Question 6

If a cell is placed in a hypertonic solution, what will happen to the cell?

Accepted Answer

It will shrink as water leaves the cell.

Question 7

Which of the following is a correct equation for photosynthesis?

Accepted Answer

$$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6$ + 6O_2$$

Question 8

Which organelle is responsible for producing ATP in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 9

A genetic cross between two heterozygous individuals (Aa x Aa) for a single trait will result in what phenotypic ratio in the offspring?

Accepted Answer

3:1

Question 10

Which of the following best explains why water is an excellent solvent for biological reactions?

Accepted Answer

Water can form hydrogen bonds with many substances.

Question 11

Which process is responsible for the movement of oxygen from the lungs into the blood?

Accepted Answer

Simple diffusion

Question 12

Which of the following is a function of mitosis in multicellular organisms?

Accepted Answer

Growth and repair of tissues

Question 13

Which of the following best describes the structure of DNA?

Accepted Answer

A double helix composed of two antiparallel strands

Question 14

Which of the following is an example of a codominant inheritance pattern?

Accepted Answer

A person with AB blood type

Question 15

Which of the following best describes the function of tRNA during translation?

Accepted Answer

It carries amino acids to the ribosome.

Question 16

A population of beetles is exposed to a pesticide. After several generations, most beetles are resistant. This is an example of:

Accepted Answer

Natural selection

Question 17

Which of the following is a correct representation of the Hardy-Weinberg equation?

Accepted Answer

$$p^2 + 2pq$$ + $$q^2 = 1$

Question 18

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

Accepted Answer

Storing genetic information

Question 19

Which of the following best describes the process of osmosis?

Accepted Answer

Movement of water from low to high solute concentration across a semipermeable membrane

Question 20

Which of the following is a real-world example of homeostasis?

Accepted Answer

A lizard basking in the sun to raise its body temperature

College Biology Exam Study Guidance

Study Guide - Practice Questions