Lab 2

24 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
Question 1
What plate is this?What does it test for?What is a positive result?
Answer 1
Milk PlatecaseinaseClearing
Question 2
This is a Citrate testIs it Positive or negative?what does it test for?What is the media?
Negative for Citrate utilization Citrate as sole carbon sourceSimmon's Citrate Slant
Question 3
What are the results for this pigment test?Name the organism we used and the specific media we used for it.
Intracellular pigment productionM. roseus on NA slant
Question 4
What test is this? What does it test for? What is the result of this particular tube?
Carbohydrate fermentation testTests for fermentation of sugarsPositive for sugar fermentation, Acid only
Question 5
What is this plate?What does it test?Is it differential or selectiveWhat is the pH indicator in this test?What can we say about organism SA? SP? EC?
  • MSA plate
  • Halophile and Mannitol Ferm
  • Both
  • Phenol Red
  • SA Halophile + Mann. Ferm
  • SP Halophile - Mann Ferm
  • EC Not a Halophile
Question 6
This is a Lys TestWhat enzyme does it test for?Is this tube positive or negative for the enzyme?
Lysine Decarboxylase Negative for enzyme
Question 7
Citrate testPositive or negative for what?
Positive for citrate utilization
Question 8
Barritt's reagent AWhat test do we use this reagent?When this reagent is added to its appropriate test, it gives a red color. Is that positive or negative?
VPPositive for non acidic fermentation (acetoin production)
Question 9
Name the respective tests for these reagents. Tell me what those tests are used for
MR test, Starch testMixed acid ferm. Caseinase
Question 10
What is the result of the tube on the left?Result on the tube on the right? Why?
-, Alk prod.- NH3 prod. on left, increase in pHno fermentation occurred on right
Question 11
What test do we use this?
Catalase
Question 12
Describe the result of this test
Positive for carb. ferm. acid and gas production
Question 13
What test is this? What is the media used?What is the result?
H2S testPeptone iron deepPositive for cystein desulfurase
Question 14
What does line A represent? What does line B represent?
A = killing dose of streptomycinB = highly resistant colonies
Question 15
What is the result for this test?
+ lys decarboxylase