lec3

Which one is false about agar:

• Used as a nutrient source by bacteria

• Does not help bacterial growth

• Came from red algae

• All of them

most bacteria can grow at pH of:

• 5

• 6

• 7

• 8

Used by the majority of microorganisms as a anergy source:

• Glucose

• Lactose

• Fructose

• Galactose

Which statement is False about the broth media?

• Does not contain solidifying agent.

• Use in test tubes, bottles or petri dishes

• Used to obtain viable bacteria

• all of them

Which one of them contain 1.7% Agar?

• Broth media

• Semi-solid media

• Agar deep tube

• None of them

Which one contains 1.8% Agar?

• Agar deep tube

• Agar slant

• Agar plate

• All of them

The selective agent of MacConkey agar:

• Crystal violet

• Bile sult

• Both of them

• None of them

blood agar media is an example of

• General media

• Enriched media

• Transport media

• selective media

which bacteria appear green on EMB

• Escherichia

• Shigella

• Salmonella

• Pseudomonas