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What is used to improve contrast when viewing clear portions of cells?
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Do you need more or less light when viewing a stained preparation?
More light for stained. Less light for unstained. When viewing unstained material, it is necessary to reduce the amount of light to increase the contrast between the cells and the liquid.
Robert Hook discovered cells when viewing a?
at cork
How does the structure of white blood cells help them perform their jos?
improve my answer improve
Why use iodine when preparing slide for viewing?
one disadvantage of using iodine to stain cells is that iodine will kill living cells.
What did hooke call tiny rectangular rooms?
When viewing a cork through his homemade microscope Robert Hook discovered small compartments that he called cells.
Do you need more or less light when viewing a stained preparation?
More light for stained. Less light for unstained. When viewing unstained material, it is necessary to reduce the amount of light to increase the contrast between the cells and the liquid.
Why should microscope light be dimmed when viewing living nearly transparent cells?
Human A&P Lab manual (cat version), N. Marieb, Pg. 346. "Place the slide on the stage, and locate the cells at the lowest power. You will probably want to dim the light with the iris diaphragm to provide more contrast for viewing the lightly stained cells. Furthermore, a wet mount will dry out quickly in bright light because a bright light source is hot." The answer I believe is 'to provide more contrast'
How do you compare and contrast plant cells animal cells and unicellular cells?
you take 3 compare and contrast bubbles and wright down the differences and the same
What do in need for viewing sperm cells?
Sperm and a microscope.
Robert Hook discovered cells when viewing a?
at cork
How do you make face portions?
the cells that make u
Which scientist is given credit for viewing cells under the microscope but not naming them cells?
Leeuvenhoek
What did Robert Hook discovered cells when viewing a under a microscope?
he found cells of course
What did Robert Hook discovered cells when viewing a under a microscope.?
he found cells of course
Contrast blood cells and nerve cells?
same genetic information
With which of these would you apply Protoslo to the slide before viewing?
Cheek cells
Do cells have a dark round spot in them?
Cells can be stained in laboratory setting for contrast and better visibility under a microscope. One type of staining is called a gram stain. The cells take up the dying agent(s) in varying degrees, and often times, the nucleus of the cell stains darker than other cellular components. When viewing the stained cells under a microscope, it is possible to identify the cells nucleus by the presence of an elliptical, oval, or elongated darkened spot.
