1. In a tube of Thioglycollate broth, _ would grow atthe very top portion of the tube while ___ would grow throughoutthe tube.
B. Obligate anaerobes, obligate aerobes
C. Microaerophiles, facultative anaerobes
D. Obligate aerobes, facultative anaerobes
2. Which of the following does acheivesterilization?
A. freezing
B. boiling
C, ethylene oxide
D. none of the above
3. All of the following are modes of action of antiviraldrugs except __
A. inhibition of peptidoglycan synthesis
b. inhibition of DNA or RNA synthesis
C. inhibition of fusion
d. inhibition of uncoating
4. The beta-lactams affect the crosslinking between NAMsubunits. How are we able to use these drugs against bacteria andnot do significant harm to our own cells?
a. Human cells use 80S ribosomes, while bacteria use 70Sribosomes.
b. Human cells do not possess peptidoglycan.
c. Human cells have different cell membranes than bacteria.
5. Tamiflu works against the influenza virus by blocking theaction of neuraminidase, thereby blocking ____ of the virus.
A. attachment
b. biosynthesis
c. release
6. Mary is put on antibiotic treatment for an infection.After a week, she develops thrush, a yeast infection on thetongue. This represents which of the following?
A. synergism
b. superinfection
c. double whammy syndrome
7.  Which letter represents the phase of thegrowth curve where the maximum population density is the greatest?Choose the answer that has BOTH the letter and the descriptioncorrect.
1 A: lag phase
3. C: stationary phase
4. B. stationary phase
