Lab Test 3 Flashcards
Extra nutrients added above and beyond the normal ingredients in agar
Enriched media
Organasims that have special additional needs
Fastidious
Require nutrients from animal cells to grow well
Whether produces hemolysis , enzymes which cause digestion of rbc
Identify staph ,neisseria , strepto , influenza
Blood agar
High salt content
Inhibits org. Other than staph
If growth , capable of fermenting the sugar mannitol
Produces acid , yellow to red color
MSA
Inhibitory to gram negative
Some g positive bacilli and cocci are too
Pea
Uses crystal violet dye
Bile salts to inhibit the growth of g positive
Ingredients lactose nd the ph indicator turn red Allows the lactose fermentation to be distinguished from non fermentation… e coil is not
Mac
2 dyes ( methyl blue and eosin
G pos inhibited
Green ecoli growth
Emb
Use water to split the large molecules
Hydrolytic reactions
Cloudy medium
Large
Insoluble
Polymer
Substrate
Clear medium
Small
Monomers
Soluble
End product
Oragajism use to they environment produce less what
Exoenzymes
Iodine is added to surface of plate why ?
After incubation to enhance the disappearance of starch
Dark purple = starch but not with maltose or glucose
Also know. As triglycerides
Hydrophobic
Lipid hydrolysis
Milk protein
Makes milk milky
Polymer composed of amino acids monomers
Insoluble
Clear in solution
casein hydrolysis
Used to test for the ability of bacteria to spilt casein into it components by exoenzymes
Milk agar
