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BI 223 Midterm > Lecture 13 > Flashcards

Lecture 13 Flashcards

1
Q

Prokaryote Cells Traits

A

Small cells: most 1 micron or less
No complex, membrane-bound organelles (ex. no nucleus)
Simple = reproduce quickly

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1
Q

Paraphyletic Grouping: Prokaryotes

A

Archaea and Bacteria

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2
Q

Archaea Basic Traits

A

Less common
Extreme environments
~ specialized one layer phospholipids in plasma membrane

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3
Q

Bacteria Basic Traits

A

Most abundant
Very diverse

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4
Q

Bacterial Cell Wall

A

Provides cell shape, protection and integrity
Contain peptidoglycan

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5
Q

peptidoglycan

A

Only in Bacteria
Sugars cross-linked with proteins
Antibiotic target, interferes with biochemical pathway.

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6
Q

Gram Stain

A

Thick wall = purple +
Thin Wall = -

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7
Q

Binary Fission

A

Asexual Reproduction
How bacteria reproduces
1. Expand
2. Replicate the One Chromosome
3. Fission (separation)

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8
Q

Products of Binary Fission

A

Exact copy of mother cell

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9
Q

Prokaryotic Growth Inhibitors

A

Nutrients
Metabolic wastes: toxic
Competition
Predation

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BI 223 Midterm (12 decks)

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