Cells

Topics: Cell, Starch, Microscope Pages: 4 (1210 words) Published: June 18, 2013
INTRODUCTION
The present invention relates to a process for the preparation of a biological material or compound, particularly a section of tissue on an object carrier, for examination with a microscope as well as a corresponding arrangement of a biological material prepared in such a manner on carrier means, for example a glass object carrier. In particular, the present invention relates to such a process for the preparation of an examination of the biological material (in the following also described as examination material) with a laser micro-dissection system, with which individual objects can be cut and/or catapulted by means of laser radiation out of the biological material and collected in suitable receiving vessels.

AIM OF EXPERIMENT
* To view the parts of a cell
* To differentiate between plant and animal cell

APPARATUS
1. Microscope
2. Filter paper
3. Cover slip
4. Glass slide
5. Knife
6. Litmus paper

MATERIALS
1. Potato
2. Onions
3. Iodine
4. Cheek cells
5. Methylene blue
6. Distilled water

PROCEDURES
A. Observation of starch grain
i. The potato was cut to obtain a smaller piece.
ii. The small piece of potato was placed on the center of the glass slide and enough pressure is applied to squeeze small amount of juice out of it, the remaining part of the potato is then discarded leaving the juice behind. iii. A drop of water was added to the potato juice and then covered with a clean cover slip. iv. The slide was then examined under low power (10X) and then high power (40X). A drawing of 4 – 6 starch grains were made to illustrate the shape and other observable detail for each low power (10X) and high power (40X). v. The grains was stained with iodine using the irrigation technique. vi. The slide was then examined under low power (10X) and then high power (40X). A drawing of 4 – 6 starch grains were made to illustrate the shape and other observable detail for...
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