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Microbiology > Module 3 pt. 1 > Flashcards

Module 3 pt. 1 Flashcards

1
Q

Universal Ancestor

Domains (3)

A

Domain Eukarya

Prokaryotes:
-Domain Archaea

-Domain Bacteria

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2
Q

Domain Archaea (4)

A

Euryarchaeotes

Crenachaeotes

Nanoarchaeotes

Korarchaeotes

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3
Q

Domain bacteria (5)

A

Proteobacteria

Chlamydias

Spirochetes

Cyanobacteria

Gram-Positive bacteria

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4
Q

Surrounded by a plasma membrane and many different structures and organelles with a variety of functions.

A

Eu - true
Karyon - nut or kernel

Domain Eukarya

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5
Q

Things in domain Eukarya (6)

A

Fungi
Protozoa
Algae
Parasitic worms and Mites
Plants
Animals

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6
Q

Unicellular that lack a true nucleus and lack membrane bound organelles. Genetic material not bound within a nucleus.

A

Pro - before
Karyon - Nut or Kernel

Prokaryotes

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7
Q

Type of prokaryotic cell types (3)

A

Cocci - Spherical

Bacilli - rod-shaped

Spirilli - spiral-shaped

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8
Q

Eubacteria traits [Venn diagram] (4)

A

Peptidoglycan in cell walls

Cannot survive in extreme environments

Bacteria and cyanobacteria

More standard energy production

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9
Q

Archaebacteria traits [Venn diagram] (4)

A

No peptidoglycan in cell walls

Live in extreme environments

Thermophiles, Halophiles, Methanogens

Less standard energy production

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10
Q

Eubacteria AND Archaebacteria traits [Venn diagram] (4)

A

Evolved from common ancestor

Prokaryotic

NO Nucleus

Single-celled

Ribosomes

No membrane-bound organelles

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11
Q

unicellular organisms WITHOUT nuclei

ENERGY: Chemosynthesis (Nutrients from Carbon through oxidation, ___)

NO organelles

Have cell walls

LACKS peptidogylcan

DNA similar to eukaryotes

Live in extreme environments (NO oxygen, hot springs, deep ocean)

A

Archaebacteria

ferrous ions

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12
Q

Protect cell against ion & pH fluctuations, osmotic stress, degrading enzymes and predacious bacteria

Widely studied for nanotech due to their ability to self assembe protein units without enzymes

Future prospects: S-layer can be used for drug delivery systems & detection for toxic chemicals

A

Archaebacteria Cell wall

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13
Q

Type 1/5 Archaebacteria cell wall (3)

A

S layer composed of protein/GLYCOprotein

20-40 nm thick

Methanogens and Thermophiles

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14
Q

Type 2/5 Archaebacteria cell wall (2)

A

+ protein sheath

Methanosprillum

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15
Q

Type 3/5 Archaebacteria cell wall (2)

A

+ Methanochondroitin

Methanosarcina

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16
Q

Type 4/5 Archaebacteria cell wall (2)

A

+ Psuedomurein (below S-layer)

Methanothermus/Methanopyrus

17
Q

How does the psuedomurein differ from the peptidoglycan?

A

Pseudomurein has N-acetyltalosaminuronic acid & L-amino acids

instead of Peptidoglycan’s N-acetyl muramic acid & D-amino acids

18
Q

Type 5/5 Archaebacteria cell wall (3)

A
  • S layer

+Single thick, homogenous layer like gram positive bacteria

Methanobacterium Halococcus

Microbiology (25 decks)

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