Bacterial Reproduction (Leaving Cert Biology): Flashcards
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Type of bacterial reproduction
Type of bacterial reproduction
Asexual
Name of bacterial reproduction process
Name of bacterial reproduction process
Binary fission
First step of binary fission
First step of binary fission
DNA replicates and cell elongates
Where DNA moves in binary fission (step 2)
Where DNA moves in binary fission (step 2)
Two identical DNA pieces move to opposite ends of cell
What forms in cell wall (binary fission step 3)
What forms in cell wall (binary fission step 3)
Ingrowths
Final step of binary fission
Final step of binary fission
Cell splits in two (cytokinesis), two identical cells form
How often bacteria reproduce in suitable conditions
How often bacteria reproduce in suitable conditions
Every 20 minutes
What passes quickly due to rapid reproduction
What passes quickly due to rapid reproduction
Mutations (from generation to generation)
What bacteria produce in unsuitable conditions
What bacteria produce in unsuitable conditions
Endospores
Define endospore
Define endospore
Thick, tough-walled, dormant, dehydrated bacterial cell
How long can endospores survive
How long can endospores survive
Up to 100 years
What happens when conditions become suitable again
What happens when conditions become suitable again
Endospore absorbs water, wall breaks, binary fission resumes