Question 1

Which organelle is responsible for modifying, sorting, and packaging proteins for secretion, as shown in the image provided?

Accepted Answer

Golgi apparatus

Question 2

Based on the atomic structure shown in the third image, which element is most likely represented?

Accepted Answer

Lithium (Li)

Question 3

Which of the following best describes the difference between covalent and ionic bonds?

Accepted Answer

Covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between charged atoms.

Question 4

Which side of a water molecule has a partial negative charge?

Accepted Answer

Oxygen

Question 5

What is the correct order of steps in the scientific method?

Accepted Answer

Observation → Hypothesis → Experiment → Analysis → Conclusion → Communicate results

Question 6

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

Accepted Answer

Nucleus

Question 7

Which of the following is a major difference between prokaryotic cells and eukaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.

Question 8

Which of the following correctly describes a reaction that has reached chemical equilibrium?

Accepted Answer

The rate of the forward reaction is equal to the rate of the reverse reaction.

Question 9

Which of the following is NOT a requirement of life (to be considered living)?

Accepted Answer

Multicellular

Question 10

A nitrogen atom has an atomic number of 7 and an atomic mass of 15. How many neutrons does this nitrogen atom have?

Accepted Answer

$$15 - 7 = 8$$ neutrons

Question 11

Which of the following best describes the Central Dogma of molecular biology?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein.

Question 12

Which of the following is a trace element required by living organisms?

Accepted Answer

Iron

Question 13

Which of the following is the correct scientific name format for a bacterium?

Accepted Answer

Staphylococcus aureus

Question 14

Which of the following is a function of the smooth endoplasmic reticulum (Smooth ER)?

Accepted Answer

Lipid synthesis and detoxification

Question 15

Which type of bond involves the sharing of pairs of electrons between two atoms?

Accepted Answer

Covalent bond

Question 16

Which of the following is a possible hypothesis for an experiment where mold color changes with temperature?

Accepted Answer

Temperature has an effect on the color of mold growth.

Question 17

Which of the following is a major theme in biology that explains the unity and diversity of life?

Accepted Answer

Evolution

Question 18

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

Accepted Answer

Biosphere → Ecosystem → Community → Population → Organism

Question 19

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

Accepted Answer

Have membrane-bound organelles

Question 20

Which of the following best describes the function of the mitochondria?

Accepted Answer

ATP production through cellular respiration

Exam 1 Review: Biology Concepts and Cell Structure Guidance

Study Guide - Practice Questions