Investigating antibiotics & antiseptics (Edexcel GCSE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What do inhibition zone sizes compare?
What do inhibition zone sizes compare?
Effectiveness of different antibiotics
Which formula quantifies the effectiveness of an antibiotic?
Which formula quantifies the effectiveness of an antibiotic?
What value of should be used in calculations?
What value of should be used in calculations?
How do you obtain the radius from the diameter?
How do you obtain the radius from the diameter?
Divide the diameter by
What does a larger inhibition zone indicate?
What does a larger inhibition zone indicate?
More bacteria killed
An antibiotic with a larger inhibition zone is what?
An antibiotic with a larger inhibition zone is what?
More effective against bacteria
If the diameter is mm, what is the radius in mm?
If the diameter is mm, what is the radius in mm?
What is the area if radius is mm? Use .
What is the area if radius is mm? Use .
square millimetres
If diameter is mm, what is the area? Use .
If diameter is mm, what is the area? Use .
square millimetres
Antibiotic A has zone mm² and B has mm². Which is more effective?
Antibiotic A has zone mm² and B has mm². Which is more effective?
Antibiotic A