Quiz on Gram-negative Cocci lab exam 1

Which of the following is a characteristic of Gram-negative cocci?

• Large rod-shaped bacteria

• Small kidney-bean shaped diplococci

• Spiral-shaped bacteria

• Filamentous bacteria

What does the oxidase test determine the presence of in bacteria?

• Bacterial DNA

• Bacterial cytochrome oxidase

• Bacterial cell wall

• Bacterial flagella

Which of the following bacteria is NOT an example of oxidase-positive bacteria?

• Neisseria

• Pseudomonas

• Escherichia coli

• Campylobacter

Which of the following is a characteristic of bacteria used in the oxidase test?

• Resistant to heat

• Sensitive to cold

• Resistant to antibiotics

• Sensitive to light

What does API stand for in the context of the API test?

• Analytical Profile Index

• Analytical Process Indicator

• Automated Profile Identification

• Advanced Profile Index

How many miniature biochemical tests can the API test strips contain?

• Up to 20

• Up to 10

• Up to 30

• Up to 50

What is determined from the sequence of positive and negative test results in the API test?

• A profile number

• A color chart

• A growth rate

• A temperature index

What is used to identify the microorganism after obtaining the numerical profile in the API test?

• An identification book

• A computer program

• A microscope

• A chemical analysis

How many identification tests can be performed with API NH?

• 10

• 12

• 15

• 8

What is added to obtain a numerical profile in the API NH test?

• The value for each positive reaction

• The value for each negative reaction

• The average value of all reactions

• The sum of all reactions