Prokaryotes Flashcards by chiamaka okudo

Q

Cellular Organization

A

No nucleus
No organelles
No mitochondria

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Q

Functions of Cell Wall

A

Maintain shape

Peptidoglycan

Prevents bursting

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Q

Shapes of cell wall

A

Spherical
Rod
Spiral

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Q

What is peptidoglycan

A

A polymer ONLY in Domain Bacteria

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Q

2 types of cell wall

A

Gram positive
Gram negative

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Q

Thick peptidoglycan means

A

Gram positive

Purple stain

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Q

Thin peptidoglycan means

A

Gram negative
Pink stain

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Q

Gram positive color

A

Purple stain

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Q

Gram Negative color

A

Pink stain

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Q

Feature responsible for motility

A

Flagellum

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Q

CC prokaryotes flagellum vs euk

A

pro: 1/10 as wide

different propulsion and proteins

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Q

How do prokaryotes reproduce

A

Binary Fission

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Q

3 means of prokaryotic recombination

A

Transformation

Transduction

Conjunction

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Q

phage means

A

Virus

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Q

Conjunction steps

A

1) F+ cell extends pilus

2) Pilus connects F+ and F-

3)Transfer ss plasma DNA

4) F- is now F+

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Q

2 types of organisms that consume energy

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A

Phototrophs

Chemotrophs

Q

Phototrophs get energy from…

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A

Light

Q

Chemotrophs gets energy from…

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A

Chemicals

Q

Organisms that consume carbon

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A

Autotrophs

Heterotrophs

Q

Autotrophs consume…

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A

Organic material

Q

Heterotrophs consume…

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A

Inorganic material

Q

Types of relationships to oxygen

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A

Obligate aerobes

Obligate anaerobes

Facultative anaerobes

Q

Types of obligate anaerobes

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A

Fermentation

Anaerobic

Q

Fermentation

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A

Produce ATP without ETC

Anaerobic

Produce ATP with ETC without O2

Facultative anaerobes can…

DO BOTH Aerobic env= use O2 Anaerobic env= fermentation