How can organisms that do not utilize starch grow on a starch agar plate?
154447
its not just starch, It is a starch medium
861857
Soft agar?  Agar is a polymer of galactose.  It is a nutrient.  When used to promote bacterial growth or isolation, additional minerals and other chemicals are usually added.\n\nAdditional details can be found at the site listed below:
946462
Media is used to grow bacteria cultures, and a loop is stuck into a sample and then rubbed on the media in order to "plate" a sample.\n\nSome bacteria and microorganisms are easily identifiable when allowed to culture and gorw into a colony.  Also, some produce useful substances when grown.  For this reason, a loop is placed into a sample and rubbed on a plate with media.
337160
Congrats, I am working on my thesis too.  There is PDA (potato dextrose agar), V8 agar (made from guess what, V8) and many others.  Each is designed for a specific purpose.  I am not an expert on this, but try a search engine.
219260
It is called agar.  It is important to know that the bacteria don't actually "eat" the agar substance itself.  Agar is chosen actually because so few bacteria can use it (itself) as a food source.  If the bacteria were able to digest the agar, there would soon be nothing for them to grow on!  It is used mainly as a support for the added ingredients.  The ingredients mixed in the agar are what the bacteria actually live off of.  Different bacteria grow better with different ingredients in their agar.  There are many kinds of agar due to the many kinds of ingredients possible.
562891
Members of the kingdom Animalia lack chlorophyll and hence, they cannot manufacture their food. They obtain energy by feeding heterotrophically. Their life is dependent on other forms of life and therefore, they obtain their food from other organisms...
773115
you can surely rule out some things based on the type of plate you are using.  assuming that you have covered that base, you can separately pick a colony that you think may be a contaminant and look for differences in growth patterns, color, morphology, gram stain, growth on other media, and if all else fails, you can sequence it to find out exactly what it is.
465642
Some media grow most bacteria.  Blood Agar\nSome media usually used for anaerobic bacteria.\nChocolate Agar (not really chocolate, that's just the name)\nSome media of various types are used when the bacteria or fungus will only grow on certain nutrients.\nSearch on Mycobacteria Culture Media\nSearch on Fungus Culture Media\n\nThe most commonly used media other than the above are called Selective Culture Media\nhttp://myweb2.search.yahoo.com/search?fr=ks&p=Selective+culture+media\nThese grow some bacteria while inhibiting others\na typical one is Mannitol Salt Agar for culturing staphylococci\n\nSometimes liquid media are used for studying bacteria, also for saving them in a safe place on the way to the lab.\n\nThere are many different types of the latter.  Also used for studying how fast they grow.\n\nA complete answer is so long evryone would be turned off and no one would read it, probably including you.\n\nSo go to the url above and read, that is a good starting place.\n\nAnaeorbic bacteria are grow in an oxygen poor enclosure placed into the incubator.\n\nBadly run microbiology labs are a great source of potentially infective hospital bacteria.  They need to be well coordinated with the Infection Control personnel, thus aiding this effort.\n\nUsed media and cultures must be totally sterilized, especially where antibiotic sensitivity testing is involved.\n\nThat's the lab part in reducing environmental pollution and controlling the spread of antibiotic-resistant bacteria.
269855
Its a good medium to grow bacteria and allows them to clearly be seen. Also,its relatively inexpensive to make agar.
308893
False.\n\nStarch is a polysaccharide (chain of many glucose molecules).  But it does serve as energy storage for plants.\n\nAnd gibbie99 is wrong.  Animals, including humans, can digest starch just fine.  Potatoes, cereal, pasta all contain starch and we get energy from them (hence can break it down).  Cellulose is the polysaccharide that some animals can not break down.  We do not have enzymes to properly break down the way the glucose molecules are connected.
865983
Your best bet would be to contact your local community college, or university, and ask to speak to whomever is in charge of the microbiology dept. and explain what your intentions are and they can let you know if you can indeed "use" their lab.  I have to say, however, if your actual project involves bacteria it is going to be a bit of a problem "removing your project" from that lab. You can chart and record your findings and perhaps do a photo pictorial outline, but you will not be allowed to remove any cultures or plates that have grown. (The labs are all the same with this policy/procedure as it falls under watch of the regulatory divisions in the government.  Think about it...they don't want positive growth plates to possibly contaminate outside of the research area...regardless of the specimen.)  Hope this helps and good luck with your project.
55446
After melting, agar is let to cool slightly, then poured into petri dishes and allowed to cool entirely.  If the petri dishes are plastic, they may melt when they come in contact with very hot agar; therefore the agar must cool somewhat before being poured.
84613
The term you are looking for is "autotrophs."  The word means "self-feeders" and these types of organisms can synthesize their own energy-rich organic molecules.  They do not require any organic molecules from outside sources; only inorganic molecules.\nAutotrophs include plants and other photosynthetic organisms, and chemosynthetic bacteria (who form their food from chemicals).  \nAs a side note, heterotrophs are the organisms that cannot create their own food.\n\nHope this is helpful :-)
684712
I'm not sure I understand the question, but I'll try anyway.  :)  If you are trying to determine IF you have both Pseudomonas and Klebsiella on in your culture, you can streak a MacConkey agar plate with the culture.  Pseudomonas cannot ferment lactose, so it will grow on the plate but remain colorless.  On the other hand, Klesiella can ferment lactose, so it will also grow on the plate but turn bright pink.  That's probably the easiest way to distinguish the two from a mixed culture.\n\nAs for the "local disinfectant" part of the question...are you trying to pull out these bacteria and then do disinfectant susceptibility testing on them?  If so, you can streak out the plate as mentioned above, then subculture each so you can get a pure culture.  Then, you do disinfectant tests on the bacteria separately by the disk diffusion method, etc.\n\nI hope that helps some!
311599
It's not that Klebsiella is a slow grower but that E. coli is a very fast grower.  I don't think EMB agar is the key, although E. coli does really like that medium.  \n\nI assume that you're trying to identify unknowns for a microbiology lab class.  Are you trying to use slow growth as a differential test for the bacteria in your mixed culture?  Or are you trying to get "equal" growth so you can do biochemical tests?  Maybe you could do a streak plate to get isolated colonies of both and then do biochemical tests on each of them (like lactose fermentation, indole, or motility).  I'm not sure if slow growth is a good indicator for Klebislla.  \n\nIf you need an "equal" amount of the organisms on a plate, you could always set up broth cultures from your mixed streak plate but then dilute the E. coli tube before streaking onto different media.
415279
Nutrient broth ingredients:\n\nMeat extract 10.0 gm\nPeptone 10.0 gm\nSodium chloride 5.0 gm\nDistilled water 1000 ml\nMix the ingredients and dissolve them by heating in a steamer. When cool, adjust the pH to 7.5-7.6.\n\nTo make it agar add:\nTo the ingredients as in nutrient broth, add 15 gm agar per litre. Dissolve the agar in nutrient broth and sterilize by autoclaving at 121oC for 15 minutes. Prepare plates and slopes as required.
843940
Carbon containing compounds found in living organisms.  BTW, starches are just complex sugars.