measure the size of cells

​Camera

​Book

​Notebook, calculator, paper, pen

​Homework hand in

Multiple Choice

1 millimeter = ? micrometer

• 100

• 10000

• 10

• 1000

Multiple Choice

2.3cm= ? micrometer

• 2300

• 23000

• 23

• 230

Multiple Choice

The part of the microscope that contains a 10x lens; what you look through to view your specimen

• eyepiece

• objective lens

• stage

• stage clips

Multiple Choice

These contain a 4x, 10x, and 40x lens for magnifying objects

• diapragm

• light source

• eyepiece

• objective lenses

Multiple Choice

Which size ranges can be viewed using a light microscope?

• 4 only

• 1 and 2 only

• 2 and 3 only

• 3 and 4 only

measure the size of cells

by shulei nan

Open Ended

Find out the real width of the cell shown in the picture.

Multiple Choice

Choose the correct answer

• A

• B

• C

• D

Multiple Choice

Choose the correct answer

• A

• B

• C

• D

Multiple Choice

The diagram shows a stage micrometer, with divisions 0.1mm apart, viewed through an eyepiece containing a graticule. What is the area of the field of view of the mciroscope at this magnification (π=3.14)

• π=12.5 x 12.5 = 4.9 x 10²μm²

• π=50 x 50 = 7.9 x 10³μm²

• π=125 x 125 = 4.9 x 10⁴μm²

• π=250 x 250 = 2.0 x 10⁵μm²

Multiple Choice

Eyepiece graticules and stage micrometers are used to measure cells. Which is the correct reason why an eyepiece graticule is calibrated?

• An eyepiece graticule can be used to make measurement

• An eyepeice graticule is magnified by the objective lens

• An eyepiece graticule magnifies the specimen

• An eyepiece graticule makes comparison