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- 1. Multiple Choice
What does a eukaryotic cell have that a prokaryotic cell does not?
DNA
organelles
cell wall
cell membrane
- 2. Multiple Choice
What tool did scientists use to gather observations to form the cell theory?
thermometer
microscope
graduated cylinder
triple-beam balance
- 3. Multiple Choice
What characteristics are shared by most cells?
Most cells have membrane-bound organelles and a nucleus.
Most cells contain cytoplasm, are enclosed by a membrane, and have a nucleus.
Most cells are microscopic, enclosed by a membrane, and contain cytoplasm.
Most cells can be seen by the unaided eye and are enclosed by a membrane .
- 4. Multiple Choice
In what way are cells similar to atoms?
both are basic units or building blocks
both are alive
both have electron shells
both can be viewed under a light microscope
- 5. Multiple Choice
Would a poison that kills human cells by blocking pores in the nuclear membrane also kill bacteria?
Yes, both human cells and bacteria have a nucleus.
Yes, bacteria have a membrane on which the poison can act.
No, bacteria do not have pores in their nuclear membranes.
No, bacteria do not have a nucleus on which the poison can act.
- 6. Multiple Choice
Which is not a function of the cytoskeleton?
supports and shapes the cell
provides strength
transports wastes outside of the cell
aids in cell movement
- 7. Multiple Choice
What characteristics do mitochondria and chloroplasts share?
both have DNA and external and internal membranes
both are in animal cells
both contain enzymes and can break down wastes
both line the endoplasmic reticulum and aid in making proteins
- 8. Multiple Choice
What structure is only found in plant cells?
nucleus
vesicle
vacuole
cell wall
- 9. Multiple Choice
What is the function of the nucleus?
It makes proteins.
It provides the cell with energy.
It stores information.
It transports materials within the cell.
- 10. Multiple Choice
Which organelle is a membrane-bound sac that divides material from the rest of the cell and transports material around the cell?
vacuole
vesicle
ribosome
endoplasmic reticulum
- 11. Multiple Choice
What are the earliest known organisms?
marine cyanobacteria
land-living cyanobacteria
stromatolites
single eukaryotic cells
- 12. Multiple Choice
What does the theory of endosymbiosis explain?
how prokaryotic cells evolved
how eukaryotic cells evolved
how unicellular organisms evolved
how multicellular organisms evolved
- 13. Multiple Choice
What was one way that early microbes did not change Earth?
They deposited minerals on Earth's surface.
They added oxygen to the atmosphere.
They added carbon dioxide to the atmosphere.
They formed stromatolites.
- 14. Multiple Choice
How did the earliest microbes get energy?
from organic molecules
from photosynthesis
from the Sun
from oxygen
- 15. Multiple Choice
What is one advantage to sexual reproduction?
It allows new gene combinations to form.
It produces offspring quickly.
It produces many offspring.
It allows each parent to contribute all its genes to offspring.
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