GCSE Microscopy

What three parts of microscopy may you be asked about in your GCSE exam?

• Tidying up and putting away the microscope

• Observing your slide

• Preparing your slide

• Drawing your observations

What is added to stain the key structures inside the cell making them easier to see?

• Benedicts

• Biuret

• Iodine

• Universal indicator

Which equation is incorrect?

• Image = actual x magnification

• Magnification = image / actual

• Actual = image / magnification

• Image = actual / magnification

Which of these objective lenses would you start on when observing your slide?

• x 4

• x 10

• x 40

When the eyepiece lens has a magnification of x10 and you turn to an objective lens of x40. What is the total magnification of the microscope?

• x50

• x400

• x4

• x30

Which word is defined as 'the ability to distinguish between two different things' in microscopy?

• Clarity

• Magnification

• Resolution

• Clearness

Which word is defined as 'the enlarging of an object' in microscopy?

• Clarity

• Magnification

• Resolution

• Clearness

Convert 4.2cm into mm.

• 42mm

• 420mm

• 0.42mm

• 0.042mm

Convert 6.2mm into micrometres.

• 620

• 0.062

• 0.0062

• 6200

Convert 62 micrometres in millimetres.

• 62,000

• 0.62

• 0.062

• 0.0062