Keystone Quia Quiz—Cell Physiology Unit
Please choose the correct answer. Good Luck
1. Which characteristic is shared by all prokaryotes and eukaryotes?
A. ability to store hereditary information
B. use of organelles to control cell processes
C. use of cellular respiration for energy release
D. ability to move in response to environmental stimuli
2. Unlike prokaryotic cells, eukaryotic cells have the capacity to
A. assemble into multicellular organisms
B. establish symbiotic relationships with other organisms
C. obtain energy from the Sun
D. store genetic information in the form of DNA
3. In the picture of a cell below, which label indicates the part of the cell that contains most of
the cell's genetic material?
4. Living organisms can be classified as prokaryotes or eukaryotes. Which two structures are
common to both prokaryotic and eukaryotic cells?
A. cell wall and nucleus
B. cell wall and chloroplast
C. plasma membrane and nucleus
D. plasma membrane and cytoplasm
5. A biologist looks at an organism through a microscope. Which of the following observations
tells the biologist that the organism is eukaryotic?
A. The organism is unicellular.
B. The organism moves with flagella.
C. The organism has a cell membrane.
D. The organism has membrane-bound organelles.
6. This figure below shows an animal cell.
Which number corresponds to the organelle that produces cellular energy?
A. 1
B. 2
C. 3
D. 4
7. Which set of organelles would be found in both human cells and plant cells?
A. chloroplast, nucleus, and cell wall
B. nucleus, endoplasmic reticulum, and cell wall
C. mitochondria, nucleus, and endoplasmic reticulum
D. mitochondria, chloroplasts, endoplasmic reticulum, and centrioles
8. A diagram of a plant cell is shown below.
Which number identifies the organelle that functions to store water and dissolved salts?
A. 1
B. 2
C. 3
D. 4
9. Which process would be directly affected if all of a cell’s ribosomes were weakened?
A. replicating DNA
B. producing new protein
C. metabolizing glucose to produce ATP
D. transporting nutrients across the cell membrane
10. In a cell, which of the following organelles most likely contains digestive enzymes?
A. centriole
B. chloroplast
C. lysosome
D. ribosome
11. Some organelles have their own DNA that is distinct from the cell’s nuclear DNA. This is true
of which organelle?
A. cell wall
B. mitochondria
C. plasma membrane
D. vacuole
12. The rough endoplasmic reticulum and Golgi apparatus work together in eukaryotic cells.
What is one way that the Golgi apparatus functions?
A. It assembles nucleic acids from monomers.
B. It breaks down old, damaged macromolecules.
C. It packages new protein molecules into vesicles.
D. It determines which protein molecules to synthesize.
13. Alveoli are microscopic air sacs in the lungs of mammals. Which statement best describes
how the structure of the alveoli allows the lungs to function properly?
A. They increase the amount of energy transferred from the lungs to the blood.
B. They increase the flexibility of the lungs as they expand during inhalation.
C. They increase the volume of the lungs, allowing more oxygen to be inhaled.
D. They increase the surface area of the lungs, allowing efficient gas exchange.
14. The plasma membrane of a cell consists of
A. protein molecules arranged in two layers with polar areas forming the outside of the
B. two layers of lipids organized with the nonpolar tails forming the interior of the
C. lipid molecules positioned between two carbohydrate layers.
D. protein molecules with polar and nonpolar tails.
15. What is the main function of a selectively permeable cell membrane?
A. storage of water
B. storage of chemicals
C. breaks down molecules within the cell
D. regulates what enters and leaves the cell
16. Carbon dioxide and oxygen are molecules that can move freely across a plasma membrane.
What determines the direction that carbon dioxide and oxygen molecules move?
A. orientation of cholesterol in the plasma membrane
B. concentration gradient across the plasma membrane
C. configuration of phospholipids in the plasma membrane
D. location of receptors on the surface of the plasma membrane
17. A sodium-potassium pump within a cell membrane requires energy to move sodium and
potassium ions into or out of a cell. The movement of glucose into or out of a cell does not
require energy. Which statement best describes the movement of these materials across a cell
A. Sodium and potassium ions move by active transport, and glucose moves by osmosis.
B. Sodium and potassium ions move by active transport, and glucose moves by facilitated
C. Sodium and potassium ions move by facilitated diffusion, and glucose moves by
D. Sodium and potassium ions move by facilitated diffusion, and glucose moves by active
18. The table below lists the concentrations of water inside and outside a cell under four
different conditions.
Under which condition will the cell experience a net loss of water to its environment?
A. Condition 1
B. Condition 2
C. Condition 3
D. Condition 4
19. Placing wilted lettuce in cold water will make it crisp again. Which statement best describes
what happens to restore the lettuce to its original condition?
A. Water left the lettuce cells by diffusion.
B. Water entered the cells of the lettuce by osmosis.
C. Osmosis caused salts to enter the lettuce cells.
D. Salts in the leaf caused water to leave the cells.
20. The diagram below shows solute molecules represented by “X” both outside and inside of a
A process that would result in the movement of these molecules out of the cell requires the use
B. antigens
D. antibodies
21. Use the image below titled “Water movement and the cell membrane” to answer the
following question.
The relative concentration of solute inside and outside a cell can cause water molecules to
move across the membrane. Which phrase would be an alternate title to the diagram?
A. Exocytosis in a Cell
B. Active Transport in a Cell
C. Osmosis Across a Membrane
D. Facilitated Diffusion Across a Membrane

Keystone Quia Quiz—Cell Physiology Unit Please choose the