Week 1 Flashcards

1
Q

Define Microbiology

A

The study of microscopic forms of life

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2
Q

What are the categories of microorganisms from largest to smallest.

A
Protozoa
Algae
Fungi
Bacteria
Viruses
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3
Q

Give an example of a prokaryote

A

Bacteria

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4
Q

Give and example of eukaryotic cells

A
Fungi
Protozoa
Algae
Plant cells
Animal cells
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5
Q

What is the greatest source of biomass on earth?

A

Microbes

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6
Q

State some beneficial activities of microorganisms

A
Maintenance of soil. 
Cycling of essential nutrients.  
Biodegradation. 
Production of useful products. 
Biodegradation.
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7
Q

What are some of the harmful activities of microorganisms

A

Infectious diseases

Biodegradation

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8
Q

What is the ratio of bacterial to human cells in the human body ?

A

10:1

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9
Q

Where are 99% of microbes found in the human body?

A

Digestive tract

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10
Q

What is the approximate total weight of bacteria in the human body?

A

3lbs

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11
Q

What types of vitamins do bacteria help synthesise ?

A

Some varieties of B and K

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12
Q

Describe the normal bacterial flora on the skin of identical twins ?

A

Different

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