Microbiology at University Of Manitoba | Flashcards & Summaries

Lernmaterialien für Microbiology an der University of Manitoba

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What is an electron microscope?


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a microscope that allows us to see up to 500,000x to view viruses and internal structures


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What do fimbriae do?

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they allow cells to adhere to surface and contribute to pathogenicity

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What are hydrogen bonds?

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covalently bonded molecules that display polarity (hydrogen bonded to oxygen)

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What are the two nucleic acids?

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DNA and RNA

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What is the capsule stain?

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detects thick layer of polysaccharide outside, negative stains background, positive stains the cell, and capsule remains colourless

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What is are the characteristics of a prokaryote?

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does not have a nucleus, no membrane bound organelles, single-celled, and DNA is usually arranged in one circular chromosome

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What is the difference between a cation and anion?

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A cation is when an atom loses an electron and an anion is when an atom gains an electron

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What did Paul Ehlrich do?

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found that certain dyes stained bacteria differently than animal cells. a chemical might exist that could harm disease-causing microbes.

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What are organic molecules?

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molecules that contain both carbon and hydrogen

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What are fats composed of?

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a glycerol backbone and one or more fatty acids

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What is a spore stain?

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stains internal structures of some bacteria, it colors endospores green and colors the rest of the cell red (pink)

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How does sporulation happen?

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cell replicates DNA, septum forms and create uneven compartments, small compartment is engulfed by large, peptidoglycan and other components form around forespore, spore is freed from mother cell as it dies

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Beispielhafte Karteikarten für deinen Microbiology Kurs an der University of Manitoba - von Kommilitonen auf StudySmarter erstellt!

Q:

What is an electron microscope?


A:

a microscope that allows us to see up to 500,000x to view viruses and internal structures


Q:

What do fimbriae do?

A:

they allow cells to adhere to surface and contribute to pathogenicity

Q:

What are hydrogen bonds?

A:

covalently bonded molecules that display polarity (hydrogen bonded to oxygen)

Q:

What are the two nucleic acids?

A:

DNA and RNA

Q:

What is the capsule stain?

A:

detects thick layer of polysaccharide outside, negative stains background, positive stains the cell, and capsule remains colourless

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Q:

What is are the characteristics of a prokaryote?

A:

does not have a nucleus, no membrane bound organelles, single-celled, and DNA is usually arranged in one circular chromosome

Q:

What is the difference between a cation and anion?

A:

A cation is when an atom loses an electron and an anion is when an atom gains an electron

Q:

What did Paul Ehlrich do?

A:

found that certain dyes stained bacteria differently than animal cells. a chemical might exist that could harm disease-causing microbes.

Q:

What are organic molecules?

A:

molecules that contain both carbon and hydrogen

Q:

What are fats composed of?

A:

a glycerol backbone and one or more fatty acids

Q:

What is a spore stain?

A:

stains internal structures of some bacteria, it colors endospores green and colors the rest of the cell red (pink)

Q:

How does sporulation happen?

A:

cell replicates DNA, septum forms and create uneven compartments, small compartment is engulfed by large, peptidoglycan and other components form around forespore, spore is freed from mother cell as it dies

Microbiology

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