Module 1 Flashcards

(11 cards)

1
Q

What is the difference between prokaryotic and eukaryotic

A

Prokaryotes - lack a membrane-bound nucleus
Eukaryotes - have a membrane-bound nucleus

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2
Q

What are some features of Prokaryotes

A
  • no membrane-bound nucleus
  • simpler morphology
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3
Q

What are some features of Eukaryotes

A
  • have a membrane-bound nucleus
  • more complex
  • typically larger than prokaryotes
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4
Q

What is microbiology?

A

The study of organisms and agents too small to be seen clearly by the unaided eye

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5
Q

Where can microorganisms be found

A

Found in every environment on earth

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6
Q

What are some features of microorganisms?

A
  • largest population of organisms on the planet
  • play a role in recycling essential elements
  • can play a role in disease
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7
Q

What are some features of bacteria?

A
  • most are single-celled
  • most have peptidoglycan in cell wall
  • survive in broad environments
  • most are non-pathogenic
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8
Q

What are some features of archaea?

A
  • key distinguishing feature!
  • lack peptidoglycan in cell wall
  • found in extreme environments
  • some have unusual metabolic characteristics
  • no pathogenic species identified
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9
Q

What is the key feature that distinguishes bacteria from archaea?

A

Archaea has unique ribosomal RNA features that make it different from bacteria

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10
Q

Are viruses apart of the three domain system? Why or why not?

A

No because although they are microorganisms they are not living organisms

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11
Q

What are some key features of viruses?

A
  • they are not living organisms
  • they must invade a host cell in order to replicate
  • very small!
  • can cause a range of diseases (including cancers)
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