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
How is population growth of microorganisms measured?
How is population growth of microorganisms measured?
Counting cells at fixed intervals
What is agar derived from?
What is agar derived from?
Seaweed
Which organisms does the bacterial growth curve apply to?
Which organisms does the bacterial growth curve apply to?
Bacteria and fungi
What happens to cell numbers during the lag phase?
What happens to cell numbers during the lag phase?
Stays constant
Why is growth slow in the lag phase?
Why is growth slow in the lag phase?
Bacteria produce enzymes to digest nutrients
What is characteristic of the log phase?
What is characteristic of the log phase?
Rate of cell division is at maximum
What occurs in the stationary phase?
What occurs in the stationary phase?
Cell production rate equals death rate
Which waste product builds up in the stationary phase?
Which waste product builds up in the stationary phase?
What does the graph show during stationary phase?
What does the graph show during stationary phase?
A horizontal line
What characterises the decline phase?
What characterises the decline phase?
Death rate much higher than reproduction
When do bacteria form endospores?
When do bacteria form endospores?
During unfavourable conditions
How long can endospores remain dormant?
How long can endospores remain dormant?
Years