Lab: Cells

What will we be looking at under a microscope in this lab?

Bacteria Cells

Plant Cells

Animal Cells

SpecimenWhatever you want to look at under a microscope.

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

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

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

so that the objective lens does not get wet.

Specimen +

Iodine

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

What will you be viewing?

Cells Specimen

Animal Human Cheek Cells

Plant Elodea

Bacteria Strep (Causes Strep Throat)

Cheek Cells – Low Power

Cheek Cells – High Power

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

Elodea Cell – Low Power

Elodea Cell – High Power

Label nucleus and chloroplasts on drawing!

Bacteria – High Power