Use of light microscope practical Flashcards

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1
Q

What is step 1 of this practical ?

A

Put a thin sample of tissue (e.g. onion epidermis) onto a microscope slide using tweezers

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2
Q

What is step 2 of this practical ?

A

Add a few drops of iodine to the onion skin

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3
Q

What is step 3 of this practical ?

A

Place a coverslip on top of the tissue and place onto the microscope stage make sure there are no air bubbles

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4
Q

What is step 4 of this practical ?

A

Use the objective lens with the lowest magnification, and focus on the sample

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5
Q

What is step 5 of this practical ?

A

Increase the magnification and refocus to see different features of the cell

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6
Q

How do you work out magnification ?

A

Multiply magnification of eyepiece by magnification of objective lens

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7
Q

how do light microscopes work?

A

use a beam of light to form an image

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