Chapter 2 : Cells as a basic unit of life. Flashcards
A slide consists of….
a piece of glass, a stained specimen and a thin cover slip
We use a slide to
to hold the specimen for examination under the microscope.
Give examples of dye solution.
Iodine solution, methylene blue.
What is dye solution used for?
It is used to highlight the structures in the specimen.
A complete slide slide has three components and they are
A glass slide, a piece of glass, stained specimen
What is the first step of preparing a slide of a human cheek cell?
Scrape the inside of the cheek with the blunt side of the toothpick.
The second step of preparing a slide of a human cheek cell.
Place the cells on a glass slide and add a drop of distilled water.
The third step of preparing a slide of a human cheek cell.
Add a drop of methylene blue solution.
The fourth step of preparing a slide of a human cheek cell.
Gently place a cover slip using a mounting needle.
The fifth step of preparing a slide of a human cheek cell.
Remove excess water and methylene blue solution using filter paper.
The first step of preparing a slide of plant cells.
Remove a piece of onion from the bulb.
The second step of preparing a slide of plant cells.
Peel off the inner epidermal layer.
The third step of preparing a slide of plant cells.
- Place a drop of distilled water on a glass slide.
- Place the inner epidermal layer as flat as possible on the slide.
The fourth step of preparing a slide of plant cells.
Gently place a cover slip on the specimen.
The fifth step of preparing a slide of plant cells.
- Add a drop of iodine solution at one end of the cover slip.
- Place a piece of filter paper at the oppisite end to draw the stain across the specimen.
