Bacteria Quiz

Answer each question by clicking the correct blue button. Only the first answer selected is graded.

1. Bacteria are classified according to their:

A. color.

B. gender.

C. shape.

D. function.

2. Whip-like structures used by bacteria for movement are called:

A. spheres.

B. flagella.

C. pseudopods.

D. cilia.

3. A bacteria such as pneumococcus would have which shape?

A. round.

B. rod.

C. spiral.

D. hexagonal.

4. Bacteria that do not need oxygen to live are called:
A. aerobic.
B. antioxidants.
C. oxygen free.
D. anaerobic

5. A bacteria that causes a disease is known as a:
A. “bug”.
B. parasite.
C. pathogen.
D. saprophyte.

6. The main reason organisms are placed into the kingdoms eubacteria or archaebacteria is that:

A. they can live anywhere on earth.

B. they have a prokaryotic cell.

C. they can photosynthesize underwater.

D. they are composed of eukaryotic cells.

7. The genetic material found in bacteria is contained on:
A. the nuclear envelope.
B. a single strand of circular DNA called a plasmid.
C. mitochondria.
D. many twisted DNA segments.

8. In which of the following environments would one expect to find bacteria:

A. polar ice.

B. hot springs.

C. inside another organisms.

D. all of these are correct.

Grade exam.