Bacteria
Name______
Use your notes and textbook pages 484 – 495 to complete the following.
1. Give three types of environments in which archaebacteria are found.
2. In what three ways do eubacteria obtain nutrients?
3. How does a bacterium’s cell wall protect it?
4. Where is the genetic material of a bacterium found?
5. What structure do some bacteria use to move?
6. Identify the type of bacterial reproduction described. Use these choices:
binary fission, conjugation.
______a. bacterium with a new genetic makeup is produced
______b. circular chromosome is copied
______c. genetic material is transferred through a pilus
______d. two identical cells are produced
______e. sexual reproduction occurs
7. Scientists think the first bacteria on Earth were
a. aerobic b. anaerobic c. fatal d. oxygen-dependent
8. Bacteria that are obligate anaerobes release energy from food by
a. cellular respiration b. using oxygen c. using nitrogen d. fermentation
9. As an endospore, a bacterium
a. produces toxins b. dries out c. causes disease d. is protected
10. Botulism is caused by endospores of C. botulinum that have
a. been killed b. produced toxins c. germinated d. reproduced
11. Nitrogen is important because all organisms need it to make
a. proteins b. ATP c. DNA d. all of these
12. The process by which bacteria use enzymes to convert nitrogen gas into
ammonia is called
a. nitrogenation b. atmospheric separation
c. nitrogen fixation d. eutrophication
13. Bacteria return nutrients to the environment by breaking down
a. dead organic matter b. inorganic materials
c. enzymes and sugar d. nitrogen in legumes
14. Bacteria are not used to make
a. vinegar b. jams c. cheese d. yogurt
15. Bacteria are responsible for the following diseases
a. strep throat and tetanus b. gonorrhea and syphilis
c. tuberculosis and diptheria d. all of these
16. For each pair of words below, circle the word that applies to bacteria
a. unicellular multicellular
b. prokaryote eukaryote
17. Where do Eubacteria live?
18. Why are bacteria so successful at surviving? What adaptations do they
have?
19. Label the attached diagram of bacterial structure and explain the function or
purpose of each part that you label.
20. Complete the section assessment questions #1 – 4 and #6 pg. 495. Put
your work on the back side of the diagram page.