Microbiology Chapter 1 Morphologies and Stains Quiz

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What is the purpose of heating the slide during a simple stain?

To enhance staining

To increase resolution

To improve contrast (correct)

To kill bacteria

Why is it important to know the difference between Gram positive and Gram negative cell walls?

To classify bacteria by color

To identify bacterial species

To determine bacterial shape

To understand antibiotic susceptibility (correct)

What is the primary advantage of using a differential stain over a simple stain?

Ability to distinguish between different types of bacteria (correct)

Increased contrast

Longer-lasting staining results

Faster staining process

Why is scientific binomial nomenclature important in microbiology?

To provide universal names for microorganisms Signup and view all the answers

What is the main function of activation energy?

To speed up a chemical reaction Signup and view all the answers

What is the difference between osmosis and diffusion?

Osmosis involves movement of water molecules, while diffusion involves movement of solute molecules. Signup and view all the answers

What makes up the backbone of DNA and what type of bond allows the nitrogen-containing bases to bind?

Sugars and phosphates; hydrogen bond Signup and view all the answers

What is an example of an opportunistic bacteria?

Pseudomonas aeruginosa Signup and view all the answers

What is a macromolecule and how is it formed?

A large molecule formed by joining smaller organic molecules together; formed by hydrolysis reactions Signup and view all the answers

What are the targets of antibiotics?

Bacteria Signup and view all the answers

What is the main purpose of heating fix bacteria during a simple stain?

To help the bacteria retain the stain Signup and view all the answers

In microbiology, what does 'aseptic' refer to?

The practice of working with sterile instruments and environments to prevent contamination Signup and view all the answers

Why do we differentiate between Gram-positive and Gram-negative cell walls in microbiology?

To classify bacteria based on their staining properties Signup and view all the answers

Which scientist contributed significantly to microbiology by developing a system of scientific binomial nomenclature?

Carl Linnaeus Signup and view all the answers

What is the difference between a eukaryotic cell and a prokaryotic cell?

Presence of nucleus only in eukaryotic cells Signup and view all the answers

What is the primary function of the activation energy in biological reactions?

Speeding up the reaction Signup and view all the answers

Which statement best describes the difference between dehydration and hydrolysis?

Dehydration adds water, while hydrolysis removes water Signup and view all the answers

What distinguishes an opportunistic bacteria from other types of bacteria?

It can cause infections in healthy individuals under certain conditions Signup and view all the answers

How does normal flora benefit humans?

By aiding in digestion and producing essential vitamins Signup and view all the answers

Why are hypertonic, hypotonic, and isotonic solutions important concepts in biology?

To understand how cells maintain shape and size Signup and view all the answers