Measuring Cells

Question 1

What is the term used to describe what you see down the microscope?

Answer 1

Field of view

Question 2

What is the special ruler called that is used to work out the size of the field of view?

Answer 2

Micrometer scale

Question 3

What are microscopic things measured in?

Answer 3

Micrometers

Question 4

How many micrometers are there in 1mm

Answer 4

1000 micrometers

Question 5

How many micrometers are there in 7.6mm?

Answer 5

7600 micrometers

Question 6

How many micrometers are there in 1.5mm?

Answer 6

1500 micrometers

Question 7

What does the term ‘magnification’ mean?

Answer 7

Is the number of times the length of the image is larger than the actual length of the cell

Question 8

What is the equation used to calculate actual size or magnification used?

Answer 8

actual length x magnification (AxM)

Question 9

Magnification can be represented by a line. What is this called?

Answer 9

A ‘Scale Bar’

Question 10

What should the ‘scale bar’ be measured in?

Answer 10

mm

Question 11

Describe the 5 steps for calculations.

Answer 11

1) write out equation
2) measure line/scale bar in mm
3) convert measurement into micrometres (x1000)
4) check for value given in Q or around scale bar (A or M)
5) input values into equation (remember units if needed)