TOPIC: MicroscopeAIM: How is a specimen viewed with a microscope measured?

What unit is used tomeasurecells?

•Micrometers•Microns •µm = um•1mm = 1000µm

•Paper thickness =about 150 µm

Human hair diameter = 80-100 µm

SHRIMP EGGS

mm µm

•Multiply by 1000 or simply move the decimal 3 places to the right.

•Example:•3.2 mm = ? •3. 2 0 0

•3200.0 µm

•0.7634mm = ? µm

•0. 7 6 3 4 •763.4 µm

µm mm

•Move the decimal three places to the left or divide by 1,000

•Example: •789 µm = ? mm• 7 8 9 . •0.789 mm

•53.6 µm = ? mm• 0 5 3. 6 •0.0536 mm

•Smaller to larger =

•move decimal to left

•um mm

•Larger to smaller =

•move decimal to the right

•mm um

•SLL LSR•3 Silly Little Leprechauns Like Spring Rain

MicroscopicMeasureme

nt

1mm

•Field of view =

3250 µm3.25mm =

1.

1000um

500um

1mm =

1000/2 = 500

2.

1000um

2000um2 mm =

2000/2 = 1000

3.

500um

250um

1000um

1000/2 = 500

500/2 = 250

4.

1000um

500um

2000um

2000/2 = 1000

1000/2 = 500

5.

500um

250um

1000um

125um

6.

2500um

1250um

5000um

625um

5mm =

7.

5mm

1000um

= 5000um

5000/5 = 1000

8.

7000um

1000um

7000/7 = 1000

9.

2000um

400um

2000/5 = 400

10.