one disadvantage of using iodine to stain cells is that iodine will kill living cells.
A drop of water is used to create a thin film of liquid on the slide, which helps to spread and suspend the specimen evenly for viewing under the microscope. It also prevents the specimen from drying out during observation.
The glass slide has allowed a closer, more in-depth look into the world around us, from pond water to pap smears. Skin scrapings, blood smears, hair, parasites, tissue samples and the like have all found their way between a glass slide and a cover slip at one time or other. ~Karl
In compound microscopes for use for viewing thin sections at high power, specimens are mounted on a microscope slide and covered with a coverslip and are placed on the microscope stage or base plate. In stereomicroscopes the same is done however for large objects such as rocks or minerals no microscope slide is required the object to be observed is placed directly on the stage.
iodine...
Iodine solution is commonly used to test for the presence of starch. When iodine solution is added to a substance containing starch, the mixture turns blue-black in color, indicating the presence of starch.
A drop of water is used to create a thin film of liquid on the slide, which helps to spread and suspend the specimen evenly for viewing under the microscope. It also prevents the specimen from drying out during observation.
For penetration of light into the cell
it is use for preparing your speech with your slide.
Iodine is used to stain cells on a microscope slide to make them more visible under the microscope. It helps to highlight specific structures within the cells, making them easier to study and identify.
Microscopes use light to illuminate the stage where you place a slide for viewing. Without this light, you would be unable to see much of anything.
Observations: Ensure the iodine crystals dissolve completely in the solvent. The solution should be clear and free of any solid particles. Avoid: Do not inhale iodine vapor as it can be harmful. Use gloves and goggles to protect from irritation.
To secure the slide to the microscope, place the slide on the stage and then use the mechanical stage controls to move the slide into the desired position. Once the slide is in place, carefully lower the stage clips to secure the slide in position. Make sure the slide is flat without any bubbles or wrinkles before viewing.
Glass slides are commonly used in laboratories to hold thin samples, such as tissue sections or blood smears, for viewing under a microscope. The smooth, flat surface of the glass slide provides a stable platform for the sample and allows light to pass through, enhancing the visibility of the specimen. Glass slides are also used for preparing and staining samples to enhance contrast and improve the visualization of specific structures.
The lowest magnifiction, some microscopes are different but ours start at 40X
Iodine is used on onion slides to stain the cells so that the nucleus becomes more visible under a microscope. This staining technique helps enhance the contrast between the different cellular structures, making it easier to observe and study them.
To pick up onion epidermis, you use forceps to pick it up, and afterwards, to see the cells, you would use a clean slide, iodine and a cover slid. Hope that helped!
You should not use Betadine if a patient is allergic to iodine. Betadine contains approximately 1% iodine, which could be enough to cause an allergic reaction.