Question

In: Biology

why would an antibiotic effect a bacterium and not a fungus , etc? or gram -...

why would an antibiotic effect a bacterium and not a fungus , etc? or gram - and not a gram + or an acid fast bacteria?

Solutions

Expert Solution

The chemical properties which gram negative bacteria has that do not allow antibiotics to utilise these cell wall pethways to effectively penetrate the outer membrane.


Related Solutions

Choose one antibiotic that you would expect to show different effects on Gram-positive and Gram-negative bacteria....
Choose one antibiotic that you would expect to show different effects on Gram-positive and Gram-negative bacteria. Which bacterium is more susceptible? Why do you think this might be the case?
An octapeptide was isolated from a fungus for use as a new antibiotic. The composition of...
An octapeptide was isolated from a fungus for use as a new antibiotic. The composition of the peptide was 2 Gly, Lys, Met, Pro, Arg, Trp, Tyr. Edman degradation of the intact peptide yields FDNB- glycine. The peptide was then treated with carboxypeptidase A, B and C, only carboxypeptidase C had any effect cleaving off Pro. The peptide was then treated with trypsin (cleaves at Arg and Lys), which gave two tripeptides and a dipeptide.   The compositions of the tripeptides...
If we describe a bacterium as “antibiotic resistant”, we mean that the cell _____________. A. will...
If we describe a bacterium as “antibiotic resistant”, we mean that the cell _____________. A. will grow/multiply on plates that contain the antibiotic B. will die on plates that contain the antibiotic C. cannot grow/multiply unless you provide the antibiotic. D. makes its own antibiotic so it can grow/multiply without you providing any. A met-- mutant A. will grow/multiply on plates that contain methionine B. will die on plates that contain methionine C. is resistant to methionine. D. makes its...
11.(3 pts) Consider what would happen to a gram-positive bacterium that could no longer link glucose...
11.(3 pts) Consider what would happen to a gram-positive bacterium that could no longer link glucose monomers together to form insoluble glycogen granules. Draw an “X” on the line next to the each of your predicted outcome(s) for the cell. ______ The osmotic pressure will increase inside the cell, cause it to lyse ______ The cell will be more susceptible to periods of carbon starvation ______ The cell will grow at a faster rate using the free glucose monomers Explain...
Describe natural antibiotic resistance in Gram-negative bacteria and how people fuel the fire of antibiotic resistance.
Describe natural antibiotic resistance in Gram-negative bacteria and how people fuel the fire of antibiotic resistance.
what effect would transduction, transformation & conjugation have on the amount of antibiotic resistance in bacteria?
what effect would transduction, transformation & conjugation have on the amount of antibiotic resistance in bacteria?
Biotechnology of microorganisms. You wish to synthesize an antibiotic (a protein) using a bacterium which does...
Biotechnology of microorganisms. You wish to synthesize an antibiotic (a protein) using a bacterium which does not have that gene. (a) Draw a diagram of the plasmid you would use to transform the bacteria. (b) How would you select the bacteria containgin the plasmid? (c) Do you think it would be appropriate to use a species which allow a high number of copies of the same plasmid? Why? (d) Do you think an inducible promoter is needed to control the...
Thought and comments about this article MRSA which is a gram positive bacterium and is concerned...
Thought and comments about this article MRSA which is a gram positive bacterium and is concerned with skin and soft tissue infections, is one of the causes of community and hospital acquired serious infections. Community acquired MRSA (CA-MRSA) are distinct from hospital strains, infects and arises in young people of a community, those who are generally healthy and their healthcare do not receive in the hospital or on outpatient basis. Pimples and boils are the examples in this infection. On...
Thought and comments about this article MRSA which is a gram positive bacterium and is concerned...
Thought and comments about this article MRSA which is a gram positive bacterium and is concerned with skin and soft tissue infections, is one of the causes of community and hospital acquired serious infections. Community acquired MRSA (CA-MRSA) are distinct from hospital strains, infects and arises in young people of a community, those who are generally healthy and their healthcare do not receive in the hospital or on outpatient basis. Pimples and boils are the examples in this infection. On...
Select a bacterium, which shows antibiotic resistance in your hospital or your preceptor site. Interpret the...
Select a bacterium, which shows antibiotic resistance in your hospital or your preceptor site. Interpret the specific pattern of resistance for that specific bacterium. For example, to what antibiotics are the bacterium resistant, and what is the evolutionary mechanism or pattern of resistance? What percentage of cases of infection in your hospital need to be caused by resistant organisms before action is taken?PLEASE MENTION YOUR REFRENCES!
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT