Southeastern Louisiana University GBIO 200 Stiller
Exam 1-4: Practice Questions, Answers & Complete
Study Guide (Cell Biology 2026) Latest Update This
Year. Pdf
Exam 1: Cell Structure, Chemistry & Metabolism (Qs 1–65)
Q1. Which of these best distinguishes a prokaryotic cell from a eukaryotic cell?
A) Prokaryotic cells have a nucleus
B) Prokaryotic cells do not have a membrane-bounded nucleus, but eukaryotic cells do
have such a nucleus
C) Eukaryotic cells are always multicellular
D) Prokaryotic cells are larger than eukaryotic cells
Answer: B
Prokaryotic cells lack a membrane-bound nucleus, while eukaryotic cells have a true
nucleus .
Q2. Which of the following statements is correct?
A) All organisms are composed of cells
B) Cells come only from pre-existing cells
C) Cells are the fundamental unit of life
D) All of these statements are correct
,Answer: D
These are the three tenets of cell theory .
Q3. What type of microscope would you use to observe the behavior of unicellular
organisms in a drop of pond water?
A) Electron microscope
B) Light microscope
C) Scanning tunneling microscope
D) X-ray crystallography
Answer: B
A light microscope is used to observe living organisms .
Q4. The organelle where aerobic respiration occurs to generate most of the cell's usable
energy is?
A) Chloroplast
B) Mitochondrion
C) Golgi apparatus
D) Ribosome
Answer: B
Mitochondria are the site of aerobic respiration .
,Q5. Plant cells are able to make their own food because they have?
A) Mitochondria
B) Chloroplasts
C) Ribosomes
D) Vacuoles
Answer: B
Chloroplasts enable photosynthesis .
Q6. Exocytosis?
A) Moves molecules into a cell
B) Moves molecules out of a cell
C) Requires no energy
D) Destroys molecules
Answer: B
Exocytosis moves molecules out of the cell .
Q7. When two or more atoms combine they form?
A) A molecule
B) An ion
C) A compound
D) A mixture
, Answer: A
Atoms combine to form molecules .
Q8. What constitutes the atomic number of an atom?
A) Neutrons
B) Protons
C) Electrons
D) Protons and neutrons
Answer: B
The atomic number equals the number of protons .
Q9. What varies to change the isotopic form of an atom?
A) Protons
B) Neutrons
C) Electrons
D) Protons and electrons
Answer: B
Isotopes differ in neutron number .
Q10. The negatively charged particle in an atom is the?
A) Proton
B) Neutron
Exam 1-4: Practice Questions, Answers & Complete
Study Guide (Cell Biology 2026) Latest Update This
Year. Pdf
Exam 1: Cell Structure, Chemistry & Metabolism (Qs 1–65)
Q1. Which of these best distinguishes a prokaryotic cell from a eukaryotic cell?
A) Prokaryotic cells have a nucleus
B) Prokaryotic cells do not have a membrane-bounded nucleus, but eukaryotic cells do
have such a nucleus
C) Eukaryotic cells are always multicellular
D) Prokaryotic cells are larger than eukaryotic cells
Answer: B
Prokaryotic cells lack a membrane-bound nucleus, while eukaryotic cells have a true
nucleus .
Q2. Which of the following statements is correct?
A) All organisms are composed of cells
B) Cells come only from pre-existing cells
C) Cells are the fundamental unit of life
D) All of these statements are correct
,Answer: D
These are the three tenets of cell theory .
Q3. What type of microscope would you use to observe the behavior of unicellular
organisms in a drop of pond water?
A) Electron microscope
B) Light microscope
C) Scanning tunneling microscope
D) X-ray crystallography
Answer: B
A light microscope is used to observe living organisms .
Q4. The organelle where aerobic respiration occurs to generate most of the cell's usable
energy is?
A) Chloroplast
B) Mitochondrion
C) Golgi apparatus
D) Ribosome
Answer: B
Mitochondria are the site of aerobic respiration .
,Q5. Plant cells are able to make their own food because they have?
A) Mitochondria
B) Chloroplasts
C) Ribosomes
D) Vacuoles
Answer: B
Chloroplasts enable photosynthesis .
Q6. Exocytosis?
A) Moves molecules into a cell
B) Moves molecules out of a cell
C) Requires no energy
D) Destroys molecules
Answer: B
Exocytosis moves molecules out of the cell .
Q7. When two or more atoms combine they form?
A) A molecule
B) An ion
C) A compound
D) A mixture
, Answer: A
Atoms combine to form molecules .
Q8. What constitutes the atomic number of an atom?
A) Neutrons
B) Protons
C) Electrons
D) Protons and neutrons
Answer: B
The atomic number equals the number of protons .
Q9. What varies to change the isotopic form of an atom?
A) Protons
B) Neutrons
C) Electrons
D) Protons and electrons
Answer: B
Isotopes differ in neutron number .
Q10. The negatively charged particle in an atom is the?
A) Proton
B) Neutron
