Module 8 Poll and Assignment

Question 1

You have injured your arm and your sibling tells you that you must sterilize your wound. Why are they wrong?

a. sterilization is a process that uses scrubbing and could damage the wound

b. sterilization is a process exclusively used on inanimate objects

c. sterilization will only reduce the microbial load without killing the pathogen

d. sterilization absolutely requires heat to completely destroy the microbes

Answer 1

b.

Question 2

For a research project, you pasteurized your growth medium. Once the process is complete, you leave your flask on the bench to cool down. AFter a few days, you notice growth in your medium. What is the best explanation?

a. The aim of pasteurization is to completely eliminate microbes; therefore you made a mstake during the procedure

b. The aim of pasteurization is to reduce the microbial population to a safe level; therefore you did not sterilize your growth medium

c. The aim of pasteurization is to only kill metabolically active cellular microbes; therefore, spores survive pasteurization process and germinated in your growth medium

d. pasteruization sterilizes solids and not liquids

Answer 2

b.

Question 3

you want to know if your new antimicrobial compound has bacteriolytic activity. What is fastest and easiest methods that you will use to measure the effect on bacterial population

a. turbidimetric method only
b. plate counts and turbidimetric methods
c. Microscoping counte method only
d. plate count only

Answer 3

b.

Question 4

How many bacteria can a compound with 99,999 efficacy kill

a. 10k and above
b. 100k and below
c. 100k and above
d. 1 mill
e. 1 bill

Answer 4

b.

Question 5

You are trying to prevent fungus infection in the hospital. What type of activity should your antimicrobial agent have if it is used to sterilize surfaces in a hospital room

a. bactericidal
b. fungistatic
c. fungicidal
d. viricidal

Answer 5

c.

Question 6

A patient with a penumonia receives a beta lactam but their condition does not improve. The patient is given a macrolide and they fully recover. why

a. infected with mycoplasma pneumoniae

b. infected with chlamydia pneumoniae

c. infected with streptococcus pneumonia

d. infected with a virus

Answer 6

a.

Question 7

Your patient asks you to explain why ivermectin cannot be used to treat sars-cov-2 infections and can only be used against parasitic worms. how do you respond

a. Viruses reproduce so rapidly that ivermectin would never have a chance to act

b. ivermectin will only work soon after infection, we cannot diagnose in time

c. there is no explanation

d. The target of ivermectin are present in invertebrate nerve and muscle cells and are not present in viruses