I've taken swabs of bacteria, and grown it in a petri dish's, know how do I get the bacteria count?

There are many methods you could use. See the link for a few suggestions.

I've taken swabs of bacteria, and grown it in a petri dish's, know how do I get the bacteria count?
i will ask my friend gus he did the same thing once

Do bacteria actually eat agar?

Yes, when agar contains all the nutrients the cells need to thrive, it can easily be used as an energy source. Nutrient agar plates are used to grow bacteria in laboratories.

Do bacteria actually eat agar?
It is a polysaccharide; why not.
Reply:No the eat the nutrient that is added to it
Reply:no, but i heard that microorganisms tat live in car gas can run an engine by eating sugar or something with high concentration
Reply:agar is just a medium. when the bacteria grow and multiply from the nutrients in the agar. they will slowly die when all the nutrients are gone and only agar is left. this is exhibited in laboratory culture medium. if you want to keep a specific bacterial sample. you have to keep transfering to new medium. there are really dangerous bactria in regulated laboratories for purposes of researches.

I've taken swabs of bacteria, and grown it in a petri dish's, know how do I get the bacteria count?

There are many methods you could use. See the link for a few suggestions.

I've taken swabs of bacteria, and grown it in a petri dish's, know how do I get the bacteria count?
i will ask my friend gus he did the same thing once

bleeding heart

Pathogenic bacteria are espcially common in?

cosmetolgy questions

Pathogenic bacteria are espcially common in?
Birmingham
Reply:Feces. So don't smear it on your face.
Reply:old cosmetics, especially shared old cosmetics.
Reply:Bacteria, often in combination with yeasts and molds, are used in the preparation of fermented foods such as cheese, pickles, soy sauce, sauerkraut, vinegar, wine, and yogurt.


"Friendly bacteria" is a term used to refer to those bacteria that offer some benefit to human hosts, such as Lactobacillus species, which convert milk protein to lactic acid in the gut. The presence of such bacterial colonies also inhibits the growth of potentially pathogenic bacteria (usually through competitive exclusion). Other bacteria that are helpful inside the body are many strains of E. coli, which are harmless in healthy individuals and provide Vitamin K.


Bacteria are both harmful and useful to the environment and animals, including humans. The role of bacteria in disease and infection is important. Some bacteria act as pathogens and cause tetanus, typhoid fever, pneumonia, syphilis, cholera, food-borne illness, leprosy, and tuberculosis(TB). Sepsis, a systemic infectious syndrome characterized by shock and massive vasodilation, or localized infection, can be caused by bacteria such as Streptococcus, Staphylococcus, or many gram-negative bacteria. Some bacterial infections can spread throughout the host's body and become systemic.


Some bacteria have became drug resistant and the same is a posing a threat to old patients and babies especially staying in ICU in hospitals.


Please see the webpages for more details on Bacteria and MRSA.

If bacteria and other organisms eventually evolve,will there be new creatures like or similar to extinct?

species?

If bacteria and other organisms eventually evolve,will there be new creatures like or similar to extinct?
Yes


All DNA on earth will come out with some similarity's. May not be just a like but will be close.
Reply:Absolutely, evolution is a continous process and there will always be new microorganism forming as well as dissolving. In the animal world this is evidenced by the appearance of new viruses and bacteria for example AIDS. In the plant world it is much more apparent due to the overwhelming amont of organism present and the the presence of factors that affect such an outcome.

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