List five rules for laboratory safety: If you are using the 4X objective, what w

Question

List five rules for laboratory safety: If you are using the 4X objective, what would be the total magnification of the microscope? what would the magnification be when using the 10x or 40 x objectives What stain did you use to make the cell visible under the microscope? What three structures could you see in the cells and what are their functions? Which is larger from Centimeter, millimeter, or micrometer? (Arrange from largest to smallest) The main kinds of carbohydrates are Carbohydrates provide providefor life activities The four biological macromolecules are and _to the body while fats and oils and The carbohydrate tests are_ and hat was the negative control used for all the tests?

Explanation / Answer

total magnification is the product of the objective and ocular lens magnifications

And in general ocular lenses use 10x lens

Therefore

If one uses 4x objective, the total magnification is = 4x objective x 10x ocular= 40x magnification

If one uses 10x objective, the total magnification is = 10x objective x 10x ocular= 100x magnification

If one uses 40x objective, the total magnification is = 40x objective x 10x ocular= 400x magnification

If we are visualizing cheek cells we can use methylene blue stain, and can see the following parts

1. The cell membrane (outer boundary of the cell)

2. Cytoplasm (the fluid within the cell)

3. A nucleus (at the center of the cell and controls cell functions)

4. Organelles (e.g. mitochondria-Organelles are cell structures with specific functions)

Largest unit- centimeter-millimeter-micrometer smallest unit

Two major kinds of carbohydrates=simple and complex

Four biological molecules are - Carbohydrates, lipids, proteins, nucleic acids

Test for carbohydrates: Benedict’s Test-reducing sugar

Molisch’s Test-test for presence of carbohydrate

Water plus Benedict's reagent is a negative control

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