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- 1. Multiple Choice
single celled organism that lacks a nucleus
bacteria
cell wall
flagellum
endospore
- 2. Multiple Choice
a long, whip-like structure that helps a cell to move.
pasteurization
bacteria
flagellum
endospore
- 3. Multiple Choice
a process of heating food to a temperature that is high enough to kill most harmful bacterial without changing the taste of the food.
pasteurization
flagellum
endospore
conjugation
- 4. Multiple Choice
a structure produced by prokaryotes, such as bacteria, in unfavorable conditions; a thick wall encloses the DNA and some of the cytoplasm.
bacteria
cell wall
endospore
microscope
- 5. Multiple Choice
a form of asexual reproduction in which one cell divides, forming two identical cells.
binary fission
conjugation
decomposer
pasteurization
- 6. Multiple Choice
What shape are these bacteria?
cocci
bacili
spirilla
linguine
- 7. Multiple Choice
What shape are these bacteria?
cocci
bacilli
spirilla
fusilli
- 8. Multiple Choice
What shape are these bacteria?
cocci
bacilli
spirilla
tortellini
- 9. Multiple Choice
Cells that lack membrane bound organelles such a nucleus are called
prokaryotic
eukaryotic
- 10. Multiple Choice
The scientist who discovered penicillin (a type of anitbiotic).
Bill Nye
Alexander Flemming
Edward Jenner
Bill Gates
- 11. Multiple Choice
Bacteria are single-celled microscopic organisms
true
false
- 12. Multiple Choice
Type of medicine used to kill bacterial infections.
vaccine
antibiotics
pasteurization
vitamins
- 13. Multiple Choice
Nitrogen fixing bacteria help put nutrients back into the soil and help plants grow.
true
false
- 14. Multiple Choice
What might happen if you didn't have bacteria in your digestive tract?
Your intestines would shut down
Your body couldn't break down certain types of food
You would never get sick
You wouldn't be able to eat vegetables
- 15. Multiple Choice
Which of the following is a true statement about bacteria?
Bacteria exist in only a few environments on earth
Bacteria can grow to extremely large sizes
Most bacteria are harmful to humans
Bacteria can be both harmful and helpful to humans
- 16. Multiple Choice
What term best describes the function of flagella in bacteria?
Locomotion
Digestion
Absorption
Reproduction
- 17. Multiple Choice
How are bacterial cells different from plant and animal cells?
Bacterial cells contain many more cell organelles.
Bacterial cells contain almost no cell organelles.
Bacterial cells have more complex cell organelles.
Bacterial cells have well-defined nuclei.
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