CAX ASB Core practicals unit 1 and 2 Mr Bs half

Which stain do you use when viewing onion cells under a microscope?

• Methyl Blue

• Iodine

Which stain do you use when viewing cheek cells under a microscope?

• Methyl Blue

• Iodine

Name the part of the microscope labelled number 5

• Eyepiece lens

• Objective lens

• Mirror

• Stage

Name the part of the microscope labelled number 3

• Eyepiece lens

• Focusing wheel

• Arm

• Stage

Name the part of the microscope labelled number 2

• Eyepiece lens

• Mirror

• Arm

• Stage

Name the part of the microscope labelled number 6

• Eyepiece lens

• Base

• Arm

• Objective lens

How can more detail be observed in cells?

• Use a better light source

• Use a higher magnification

• Use a larger microscope

• Use a lower magnification

Total magnification =

• Objective lens/Eyepiece lens

• Objective lens x 100

• Eyepiece lens x Objective lens

• Eyepiece lens x 100

Convert 10cm to mm

• 1000mm

• 100mm

• 1mm

• 0.1mm

Convert 3000µm into mm

• 3mm

• 3cm

• 0.3mm

• 30mm