Bacteriology questions and answers

Question: It is important to be aware of specific populations in order to avoid offending your patient. avoid miscommunication. provide individualized treatment. all of the above

It is important to be aware of specific populations in order to avoid offending your patient. avoid miscommunication. provide individualized treatment. all of the above Correct Answer: all of the above

Question: Health ______ adversely affect groups of people who have systematically experienced greater obstacles to health based on their characteristics historically linked to discrimination or exclusion. quotas insurances populations disparities

Health ______ adversely affect groups of people who have systematically experienced greater obstacles to health based on their characteristics historically linked to discrimination or exclusion. quotas insurances populations disparities Correct Answer: disparities

Question: You are using a microscope that has a 10x ocular lens to look at a specimen. Using both ocular lenses, you use a 25x objective lens for your observation. What is the total magnification of the image? 35x 250x 2500x 95x

You are using a microscope that has a 10x ocular lens to look at a specimen. Using both ocular lenses, you use a 25x objective lens for your observation. What is the total magnification of the image? 35x 250x 2500x 95x Correct Answer: 250x

Question: Using that same microscope and those same lenses (10x oculars and 25x objective), you also note that the NA of the objective lens is 1.1. What is the resolving power of the microscope when you’re looking at a sample using a 500 nm wavelength of light? 454.5 nm 2.0 mm 227.3 nm 350 nm

Using that same microscope and those same lenses (10x oculars and 25x objective), you also note that the NA of the objective lens is 1.1. What is the resolving power of the microscope when you’re looking at a sample using a 500 nm wavelength of light? 454.5 nm 2.0 mm 227.3 nm 350 nm Correct Answer: 227.3 nm

Question: If you are using the resolving power calculated in Q2, can you distinguish two cells on a slide that are 210 nm apart? Yes, they will be two distinct points. No, they will blur into one

If you are using the resolving power calculated in Q2, can you distinguish two cells on a slide that are 210 nm apart? Yes, they will be two distinct points. No, they will blur into one Correct Answer: No, they will blur into one

Question: The Gram stain is considered a multiple or differential stain. True False

The Gram stain is considered a multiple or differential stain. True False Correct Answer: True

Question: What type of culture contains only one type of bacterial species? Answer in two words, please check spelling.

What type of culture contains only one type of bacterial species? Answer in two words, please check spelling. Correct Answer: pure culture

Question: The KEY differentiating Gram Stain step is the application of Gram’s Iodine. True False

The KEY differentiating Gram Stain step is the application of Gram’s Iodine. True False Correct Answer: True

Question: A turbid broth culture indicates bacterial growth. True False

A turbid broth culture indicates bacterial growth. True False Correct Answer: True

Question: A contaminated culture contains two or more known bacterial species. True False

A contaminated culture contains two or more known bacterial species. True False Correct Answer: True

Question: A coverslip is required to view a Gram stained slide True False

A coverslip is required to view a Gram stained slide True False Correct Answer: False

Question: A positive string test results indicates a Gram negative bacterium. True False

A positive string test results indicates a Gram negative bacterium. True False Correct Answer: True

Question: Microorganisms are ubiquitous and can be isolated from soil, water, plants, and animals. True False

Microorganisms are ubiquitous and can be isolated from soil, water, plants, and animals. True False Correct Answer: True

Question: Which cellular structure is fundamentally different between Gram positive and negative bacteria and impacts the differential staining during the Gram Stain procedure? Peptidoglycan Outer Membrane Chitin Cytoplasm

Which cellular structure is fundamentally different between Gram positive and negative bacteria and impacts the differential staining during the Gram Stain procedure? Peptidoglycan Outer Membrane Chitin Cytoplasm Correct Answer: Outer Membrane

Question: The potassium hydroxide (KOH) or string test distinguishes between Gram-positive and Gram-negative bacteria and used to validate Gram Stain results. True False

The potassium hydroxide (KOH) or string test distinguishes between Gram-positive and Gram-negative bacteria and used to validate Gram Stain results. True False Correct Answer: True

Question: Which of the following describes the structure of bacterial cell membranes? Fluid mosaic model Phospholipid bilayer Both Fluid mosaic model & Phospholipid bilayer Both Glycocalyx & Phospholipid bilayer

Which of the following describes the structure of bacterial cell membranes? Fluid mosaic model Phospholipid bilayer Both Fluid mosaic model & Phospholipid bilayer Both Glycocalyx & Phospholipid bilayer Correct Answer: Both Fluid mosaic model & Phospholipid bilayer

Question: Starch is a type of: protein lipid nucleic acid carbohydrate

Starch is a type of: protein lipid nucleic acid carbohydrate Correct Answer: carbohydrate

Question: The English physician Edward Jenner is considered the “Father of Immunology” because: He developed Jenner’s Postulates He developed the first vaccine He was responsible for aseptic technique in hospitals He was the first to disprove spontaneous generation He invented microscopes

The English physician Edward Jenner is considered the “Father of Immunology” because: He developed Jenner’s Postulates He developed the first vaccine He was responsible for aseptic technique in hospitals He was the first to disprove spontaneous generation He invented microscopes Correct Answer: He developed the first vaccine

Question: Which of the following is the most inclusive hierarchical taxonomic group? Species Family Genus Phylum Class

Which of the following is the most inclusive hierarchical taxonomic group? Species Family Genus Phylum Class Correct Answer: Phylum