Question

A student is asked to make a slide of onion peel.

(a) From which part of onion, should she/he extract. the peel?

(b) Name the stain used.

(c) List two observations made by her/him the slide is observed through a
microscope.
​

Answer 1

(a) Epidermis layer is the skin peel of the onion. We can obtain it from the inner side (concave side) of the onion.

(b) Methylene blue. B. Complete answer: Methylene blue: Methylene blue is a common laboratory stain and is used for many different types of cells.

(c) A microscope is an instrument that can be used to observe small objects, even cells. The image of an object is magnified through at least one lens in the microscope. This lens bends light toward the eye and makes an object appear larger than it actually is.

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