Order of Magnitude (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the magnification equation used in biology?
What is the magnification equation used in biology?
How many micrometers (μm) are in 1 centimetre?
How many micrometers (μm) are in 1 centimetre?
10,000 μm
To find object size, how should the magnification equation be rearranged?
To find object size, how should the magnification equation be rearranged?
A micrograph shows a mitochondrion 5 cm long. Actual length is 8 μm. What is magnification?
A micrograph shows a mitochondrion 5 cm long. Actual length is 8 μm. What is magnification?
6250×
What must you do before substituting values into the magnification equation?
What must you do before substituting values into the magnification equation?
Ensure both measurements use same units
A cell diagram is 2.6 cm wide at 520× magnification. What is the actual cell width?
A cell diagram is 2.6 cm wide at 520× magnification. What is the actual cell width?
50 μm
To find image size, how should the magnification equation be rearranged?
To find image size, how should the magnification equation be rearranged?
What are the two main purposes of magnification calculations in biology?
What are the two main purposes of magnification calculations in biology?
Calculate real sizes & create scale drawings
What units are typically used for final answers when calculating cellular structure sizes?
What units are typically used for final answers when calculating cellular structure sizes?
Micrometers (μm)
In exams, what should you always include when showing magnification calculations?
In exams, what should you always include when showing magnification calculations?
Working, unit conversions & formula steps