1. On what basis have bacteria traditionally been classified?
Shape of colony
Size of colony
Gram stain
All of the above

2. Gram-positive bacteria
appear purple after Gram staining
frequently cause diseases that cannot be cured by antibiotics
have a thicker layer of peptidoglycan
All of the above are true

3. Gram positive bacteria differ from Gram-negative bacteria in
their response to the Gram stain
their susceptibility to antibiotics
the make up of their cell walls
All of the above

4. One structure you would NOT find in a bacteria cell is a
cell wall 
Cell membrane
Mitochondria
chromosome

5. Bacteria cells have a cell wall only a cell membrane only
both a cell membrane and an outer wall
a cell wall inside of their cell membrane

6. Coccus Bacillus spirilla
The most commonly encountered bacteria are roughly spherical. The microbiological term describing this shape is
Coccus
Bacillus
spirilla

7. Another common bacterial shape is that of a rod, often called
Coccus
Bacillus
spirilla

8. Site of energy production Site of protein synthesis
In bacterial cells, ribosomes are packed into the cytoplasmic matrix and also loosely attached to the plasma membrane. What is the function of ribosomes?
Site of energy production
Site of protein synthesis
Contains the genetic material
Lets things in and out of the cell

9. Which of the following statements regarding bacterial DNA is true
Bacteria only possess 4 chromosomes
It is a single circular loop
It contains histone proteins
It is only single stranded

10. Petri dishes are incubated in an inverted position in order to prevent
condensed moisture from dropping onto the colonies, thus contaminating them directly.
The agar from drying out.
the colonies from sinking into the medium.
The bacteria from over-heating.

11. Cloudiness is a sign that bacteria have grown in a _______________ after inoculation and incubation.
streak plate
tube of nutrient broth
Gram stain
Simple stain

12. The optimum temperature for incubating an organism is the one at which
it grows with the shortest generation time
it has the longest time between cell divisions
it is near one extreme of its range of tolerated temperatures
its enzymes begin to denature

13. The stage of bacteria growth where death and growth are equal
Lag
Log
Stationary
death

14. E.Coli bacteria are Gram-negative cocci Gram negative baccili
Gram positive cocci
Gram positive baccili

15. The process in which the chromosomes of a bacteria replicates and the cell divides is called
Transduction
Binary fission
Conjugation
Meiosis

16. Prokaryotes are unlike all other organisms in that their cells
Lack nuclei
Have cell walls
Have organelles
Lack nucleic acids

17. Which statement is true about bacteria?
Bacteria are living organisms that consist of one cell.
Bacteria are the smallest of all living things.
Bacteria are the oldest and most diverse life forms.
All three statements are true.

18. There are three common shapes of bacteria. They are
rods, spheres, and spirals.
rods, spirals, and tubes.
spheres, hexagons, and spirals.
none of the above.

19. What has caused some bacteria to become drug-resistant?
the misuse of antibiotics to try and cure viral infections like the common cold
that 50 percent of all antibiotics end up in animal feed, creating super bacteria
both 1 and 2
none of the above

20. When streaking a plate, the loop should be flamed
At the beginning and end
At the beginning and end and between the first 2 quadrants
At the beginning and end and between the second and third quadrants
At the beginning and end and between each quadrant