cells and microscopes Flashcards

1
Q

what do we use microscopes for

A

we use to look at an inside cells

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2
Q

microscopes use…

A

Lenses

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3
Q

what kind of microscope is used to look at/in cells

A

Light microscope

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4
Q

what do light microscopes let us see

A

some organelles

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5
Q

how do you prepare a specimen for viewing using a microscope

A
  1. Take a thin slice of your specimen
  2. Take a clean slide and put a drop of water in the middle
  3. Then use tweezers to place youre specimen in the droplet water on the slide
  4. Add a stain to your specimen making it easier to see
  5. Carefully lower a cover slip onto the slide using a mounted needle. Try not to trap any air bubbles
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6
Q

what is a specimen

A

what ever you’re looking at

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7
Q

how do you view a specimen

A
  1. clip the slide onto the stage
  2. select the objective lens with the lowest power
  3. use a course adjustment knob to move the stage up to just underneath the lens
  4. look down the eye piece and move the stage down until nearly in focus
  5. move the finest adjustment knob until you get a clear image
  6. if you want to make the image bigger use a high power lens
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8
Q

how do you draw a scientific drawing of a specimen

A
  1. Use a sharp pencil, draw clear outlines of main features
  2. Label the main features and make sure lines dont cross over each other
  3. dont do any colouring or shading
  4. The drawing should take up half the page
  5. Include a title, the magnification used and the scale
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