Lab 19

Question 0

What Gram bacteria is NaCl selective for? Also which morphology does it prefer (Bacilli or cocci)?

Answer 0

Gram positive cocci

Question 1

What kind of media is 7%NaCl agar? S, D, or Both?

Answer 1

Selective

Question 2

What is the source of protein in fermentation broth?

Answer 2

peptone

Question 3

What is the PH indicator in fermentation broth?

Answer 3

Phenol red

Question 4

What kind of media is fermentation broth? S,D, or both?

Answer 4

Differential

Question 5

What kind of media is EMB agar? S,D, or Both?

Answer 5

Selective and differential

Question 6

What does EMB agar selective towards and what does it differentiate between?

Answer 6

Gram-negative and differentiates between lactose fermenters and non lactose fermenters.

Question 7

What kind of media is Mannitol salt agar? S, D, or both?

Answer 7

Selective and differential

Question 8

What is MSA selective for?

Answer 8

Gram-positive cocci

Question 9

What does MSA differentiate between?

Answer 9

pathogenic staphylococci and non