Can bacteria mutate? how?

Yes, when there are several different types living together somewhere, one kind usually does better. And they have plasmids containing genertic materials that help them cope with their surroundings. Often they trade these with each other, sometimes even species to species rather than just within species.





They also mutate in response to chemicals and radiation. Maybe all die except for the one mutating bacterium, but then it grows. This happens when people abuse antibiotic treatments or do not complete them. A big example is NYC drug addicts with HIV and TB. It's hard enough to kill TB if they complete their treatment, but when they stop after only one or two weeks, the TB recovers from the antibiotics used and develops resistance to them, producing MDRTB (multiply drug resistant TB) or if it is already MDRTB, it gets even more resistance to the latest ones for MDRTB. Also a big problem in Russian prisons and drug abusers.





The exact details are very long to answer here, but you can find out more on this subject at:





http://users.rcn.com/jkimball.ma.ultrane...





Also in the masterpiece best selling book, THE COMING PLAGUE, by Laurie Garrett, available in paperback now at any good bookstore. This is a VERY GOOD BOOK, far better than any best seller in this category, including by M.D. or PhD authors. In other words, I am telling you the author did more work, and better work on this than supposed experts have done. She gets PhD in Public Health *** laude from me.





I use both references, AND you haven't seen anything yet, just wait a very few more years, less than five, my friend.

Can bacteria mutate? how?
yes. They mutate to keep up with changes in their envorment
Reply:Yes and they do constantly.


Their DNA is attacked by environmental chemicals and toxins and background radio-activity.


Most mutations die off but there are so many bacteria that some will survive and reproduce.
Reply:Not as fast as viruses, but they do mutate. In fact, many are now resistant to antibiotics becasue of mutation. The non-resistant ones die off, leaving the resistant ones to prosper. Natural selection in a nutshell.
Reply:how i understand bacteria mutatin is mutation as in resistance to antibiotics. bacteria like all cells have organelles. one of which is the endoplasmic reticulum. there r two types of these namely smooth and rough ER. the sER is involved in drug detoxification and synthesis so when there is bacteria lets say within the stomach and we take drugs for this bacteria to kill it. it might work the first time but later on the bacterias sER will begin to adapt to the drug taken and soon it will b immune to the drug. that in itself is a mutation of the original bacteria to suit its environment in order to survive.

Give any five kinds of bacteria describing their common features?

1. enterococcus fecalis


2. eshericiia coli


3. yersinia pestis


4. pseudomonas aeruginosa


5. klebsiella pneumonia





they are all gram negative bacteria. they can cause urogenital disease and/or gastrointestinal disease, and they all have peptidoglycan in their cell walls.

street fighting

Are bacteria growing in agar deeps motile?

how?

Are bacteria growing in agar deeps motile?
depends on the bacteria and the agar - if there is a lot of liquid left in the agar (soft agar) - they swim passively by water motion.


Some bacteria can actively swim (they have a flagellum) and move around in agar fairly well.

Can bacteria be transmitted through animals?Can antibiotics fight help fight viral and bacterial diseases?

Yes - bacteria could be transmitted through animals (through saliva, feces, blood, etc)


Yes - antibiotics can help fight BACTERIA


NO - antibiotics will not fight VIRUSES

Can bacteria be transmitted through animals?Can antibiotics fight help fight viral and bacterial diseases?
sure! they can.
Reply:firstly what do u mean can bacteria can be transmitted through animals??


i think u mean can an animal get infected by a bacteria infection then yes they can.





antibacteria agents can help fight bacterial diseases,





ill tell you how!





u know what peptidoglycans are ?? they are a component of the cell wall the bacteria has, penicillin binds to a pinicillin binding protein in the bacteria and this will prevent the growth of cell wall, this will lead the bacteria to release enzymes such as lysis which will destroy it and this is all due to fragile celll wall,





Viruses has No enzymes = no metabolism = resistance to true antibiotics


Most viruses are:





very susceptible to oxidising agents and radiation damage





resistant to quaternary ammonium and other biocides





Viruses with a lipid envelope are damaged by organic solvents and detergents








Many viruses are inactivated by;





extremes of pH


drying


moderate heating, e.g. 50°C for 30 minutes,





but survive freezing well.





hope this helped :P, if u have anymore questions


dnt hesitate to email me:-


noname_2001_2002@yahoo.co.uk


take care

What bacteria is commonly found in soil and dust?

pseodomonas aeruginosa. It causes a very bad infection and is the reason visitors are often forbidden to take live flowers into hospitals. It is also very hard to get rid of.

Some bacteria have a thickened slime layer that is called a/an...?

A capsule


A mucilaginous layer

Some bacteria have a thickened slime layer that is called a/an...?
look online
Reply:a lawyer.
Reply:ugh, i forgot! but it coats the outside of the cell and yeah, it's slimy





muco-something?

grappling

What bacteria is in soap scum?

None.....soap scum is a chemical reaction.





Mold is the most common thing you find in the shower.





Bleach will destroy both of these.

What bacteria is in soap scum?
Long technical read here:


http://www.asm.org/ASM/files/LeftMarginH...
Reply:some bathroom foam cleaners can dissolve soap scum look at the uses of the cleaning product in the directions on the back of the can