lab: cells. slide 2 what will we be looking at under a microscope in this lab? bacteria cells ...

Lab: Cells

Slide 2 What will we be looking at under a

microscope in this lab?

Bacteria Cells

Plant Cells

Animal Cells

Slide 3 - SpecimenWhatever you want to look at under a microscope.

(e.g. hair, blood, cells, insects, etc.)

Slide 4 - Preparing Microscope Slides:1. Grab a clean glass slide. 2. Place specimen on middle of slide.3. Put one drop Iodine (Blue Dye) on top of specimen. 4. Cover specimen with a cover slip.

Specimen

Iodine

Slide 5 - Cover SlipPurpose of a cover slip is to cover the specimen and iodine

so that the objective lens does not get wet.

Specimen +

Iodine

Slide 6 - Microscope:Eye Piece Lens = 10 xLow Power Objective = 4xHigh Power Objective = 10x

Slide 7What will you be viewing?

Cells Specimen

Animal Human Cheek Cells

Plant Onion

Bacteria Strep (Causes Strep Throat)

Slide 8Cheek Cells – Low Power

Slide 9Cheek Cells – High Power

Slide 10 -Purpose of Iodine: Outlines the big parts of the cell such as the Nucleus and Plasma membrane.

Slide 11Elodea Cell – Low Power

Slide 12Elodea Cell – High Power

Slide 13Bacteria – High Power