CLASSIFICATION OF CELL TYPES

CLASSIFICATION OF CELL TYPES

Cell analogy: a cell factory

Using cells to print 3D organs

http://www.ted.com/talks/anthony_atala_printing_a_human_kidney.html

Parts of a light microscope

http://virtualurchin.stanford.edu/microscope.htm

Parts Functions

?

1. Moves tube up and down to focus on specimen; use with low-power objective lens

? 2. source of light

?3. moves tube up and down for SHARP

focus on specimen

? 4. support the eyepiece

?5. regulate the amount of light reaching

specimen

? 6. change the objective lens

?7. enlarge images under 3 different

magnifications (x4,x10,x40)

? 8. support the microscope slide

Parts Functions

coarse adjustment knob

1. Moves tube up and down to focus on specimen; use with low-power objective lens

lamp 2. source of light

fine adjustment coarse

3. moves tube up and down for SHARP focus on specimen

Body tube/arm 4. support the eyepiece

diaphragm5. regulate the amount of light reaching

specimen

revolving nosepiece 6. change the objective lenses

objective lenses7. enlarge images under 3 different

magnifications (x10, x40, x100)

stage 8. support the microscope slide

How to prepare a wet mount?

Glass slide

Cover slip

Tranmission Electron Microscope (TEM)

TEM image: chloroplast

Scanning electron microscope (SEM)

SEM images

E. coli

Dust mite

12

4

3

5

I. SEM images: 1. ant, 2 & 4 pollens, 3. freshwater shrimp parasite, 5. greenbottle fly foot

• Genus Demodex; live exclusively on human

• 2 species: D.folliculorum (top) and  D.brevis (bottom) 

Future as a Microscope specialist

Jennifer Melo

Microscope Specialist/ Account Manager SW Ontario

Practice: Use a Venn diagram to show both the different and similar organelles of plant and animal cells