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Biology: Module 2 - Cell structure > Prokaryotic cells > Flashcards

Prokaryotic cells Flashcards

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1
Q

What is the structure of flagellum?

A
  • a single protein filament rotated by a molecular motor
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2
Q

What is the function of flagellum?

A
  • used in cell movement
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3
Q

What is the structure of ribosomes?

A
  • smaller than those in eukaryotes
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4
Q

What is the function of ribosomes?

A
  • protein synthesis
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5
Q

What is the structure of the cell surface membranes?

A
  • phospholipid bilayer studded with proteins
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6
Q

What is the function of the cell surface membranes?

A
  • controls what enters and leaves the cell
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7
Q

What is the structure of free chromosomal DNA?

A
  • one molecule of DNA, chromsomes is supercoiled to make it compact.
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8
Q

What is the function of free chromosomal DNA?

A
  • helps to store and transmit biological information to another cell.
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9
Q

What is the structure of pili?

A
  • Short, projections of the cytoskeleton within the plasma membrane.
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10
Q

What is the function of pili?

A
  • to help bacteria move in response to stimuli.
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11
Q

What is the structure of plasmids?

A
  • small, circular, double-stranded DNA molecules.
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12
Q

What is the function of plasmids?

A
  • can be exchanged between bacteria by conjugation.
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13
Q

What is the structure of the cytoplasm?

A
  • liquid mostly composed of water
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14
Q

What is the function of the cytoplasm?

A
  • medium for chemical reactions within the cell.
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15
Q

What is the structure of the cell wall?

A
  • made of peptidoglycan
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16
Q

What is the function of the cell wall?

A
  • to help the cell to resist the effects of high tugor pressure.

Biology: Module 2 - Cell structure (6 decks)

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