Unit 1 Cells - Measuring Cells Flashcards
1
Q
How are cells measured?
A
Micrometres
2
Q
How many micrometres in 1mm?
A
1000
3
Q
What can you use to measure cells visible under the microscope?
A
a stage micrometer
4
Q
A cheek cell measures 22mm. What is it in micrometres?
A
22 000
5
Q
How can you calculate magnification?
A
Use a scale bar
6
Q
What is the formula for magnication?
A
M = I length of the IMAGE
—
A by the ACTUAL length
7
Q
What is the formula for calculating the actual length of a cell?
A
Actual length = Length of Image
———————–
Magnification
