Growth Curve (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is agar derived from?
What is agar derived from?
Seaweed
The bacterial growth curve also applies to which other organism?
The bacterial growth curve also applies to which other organism?
Fungi
How is population growth of microorganisms measured?
How is population growth of microorganisms measured?
Counting cells at fixed intervals
How many phases are in the bacterial growth curve?
How many phases are in the bacterial growth curve?
5
What do bacteria produce during the lag phase?
What do bacteria produce during the lag phase?
Enzymes to digest nutrients
What happens to the rate of cell division in the log phase?
What happens to the rate of cell division in the log phase?
It reaches maximum
Which waste product builds up during the stationary phase?
Which waste product builds up during the stationary phase?
Why is the stationary phase shown as a horizontal line on the graph?
Why is the stationary phase shown as a horizontal line on the graph?
Cell production equals cell death
What characterises the decline phase?
What characterises the decline phase?
Death exceeds reproduction
When do some bacteria form endospores?
When do some bacteria form endospores?
When conditions are unfavourable
How long can endospores remain dormant?
How long can endospores remain dormant?
Years
What is an endospore?
What is an endospore?
Thick, tough-walled dormant cell