Microbiology Answers

post streptococcal infection

In the nitrogen cycle, nitrogen fixation is primarily carried out by?
A. bacteria
B. humans
C. plants
D. ammonia

How could you interrupt bacterial translation without affecting human cell translation?

When using a water and bleach mixture to disinfect a flat surface, can you explain why it is recommended that it is best to let the mixture dry after applied?

Describe how selective and differential media facilitate the bacteriological analysis of water samples?

synthetic nucleic acids are useful as which of the following?
a. as primers for PCR
b. as antisense RNAs
c as DNA probes
d. as DNA probes an antisense RNAs
e. as DNA probes, primers, and antsense RNA;s

which culture uses the most glucose?

a) E. coli growing in glucose broth at 35 c with o2 for five days.
b) E coli growing in glucose broth at 35 c without o2 for five days.
C) botha a and b
d) neither a not b

If a bacterium has a generation time of 30min and you start with 100cells at time 0, how many cells will you have in 30min

what is the weakest bond?

Which type of enzymes take part in digestion?
A. Hydrolases B. Oxido-reductases C. Synthetases D. Isomerases