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A level biology Coursework

A level biology Coursework - Microbiology Forum

A level biology Coursework - Discuss Microbiology Science and Protocols here. Post questions on the study of viruses, fungi, parasites and bacteria here. Microbiology Forum.


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  #1  
Old 04-02-2008, 01:59 PM
Twinkl10@aol.com
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Default A level biology Coursework



Hi, I am doing my A level biology coursework. I am struggling to find out
why streptomycin is more effective at inhibiting the growth of Gram negative
bacteria (E coli) than at inhibiting the growth of gram postive bacteria (B
Subtilis). I know about how the antibitoic wokrs, (inhibiting protein synthesis
etc) but can not link this to why the effectiveness differs upon the type of
bacteria.
Any help would eb appreciated and included in my bibiliography. thankyou




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Old 04-03-2008, 02:41 AM
Bob
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Default A level biology Coursework

On Wed, 2 Apr 2008 09:59:31 EDT, [Only registered users see links. ] wrote:


It _might_ be for any of the reasons why bacteria can be Str-R
(streptomycin resistant).

Uptake
Inactivation
Ribosome not affected.

That is, they might be resistant at most any step. A priori there is
no particular way to know.

My memory says that uptake is the issue in this case. Please check
that -- but you may need to go to the older literature to find anyone
who bothers to say.

Let's see.. The msg title suggests you are in high school. Do you have
access to a college library -- with a reference librarian who can help
with the search? If not... Try PubMed, and even Google. Maybe even
google on "Why are aminoglycosides more effective against gram
negative bacteria". Play around.


Always be careful with such generalities. Str was much used against
tuberculosis in the old days.

bob

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  #3  
Old 04-04-2008, 12:04 AM
N10
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Default A level biology Coursework

Hi

Research and think about what Bob suggests

Think about cell wall Structure


There is no shortage of information on this topic if you know how to use
goggle

Twinkl10 sucks as an email identity but then again what do I know..


I wish you the very best with A levels at least you have rare ability to
ask when you dont know...thats called collboration well done


All the best N10


<[Only registered users see links. ]> wrote in message
news:[Only registered users see links. ]. net...


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