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Enterococcus on bile esculin agar

• Positive growth with black precipitate

• Negative growth with no color change

• Growth with greenish hue

• Inhibition of growth

What type of bacteria is indicated by blood agar with beta hemolytic characteristics?

• Staphylococcus aureus

• Escherichia coli

• Streptococcus pneumoniae

• Bacillus cereus

Gram positive cocci

• Clostridium perfringens

• Escherichia coli

• Staphylococcus aureus

• Streptococcus pneumoniae

Novobiocin test

• 1. Resistance: Staphylococcus saprophyticus

• 2. Sensitive: Staphylococcus epidermidis

• 3. Resistance: Staphylococcus aureus

• 4. Sensitive: Staphylococcus hominis

What is Muller Hinton agar used for?

• Antibiotics susceptibility test

• Bacterial growth medium

• Virus culture

• Fungal identification

• Option 1

• Option 2

• Option 3

Bacillus on blood agar

• Ground glass aperrence

• Beta-hemolytic appearance

• Alpha-hemolytic appearance

• No growth observed

DNAes test agar

• Use: identity s.arues

• Use: identify E. coli

• Use: detect Salmonella

• Use: test for Listeria

What does the Catales test indicate?

• Positive mean staph coccus

• Negative mean streptococcus

• Indicates viral infection

• Suggests fungal presence

Gram positive cocci in cultures

• Staphylococcus aureus

• Escherichia coli

• Streptococcus pneumoniae

• Bacillus subtilis