Cells + Microscopy

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  • Created by: abick
  • Created on: 11-06-17 19:50

1. What does a permanent vacuole do and do animals or plants have it?

  • It contains cell sap, a weak solution of sugar and salts and it is only found in plants
  • It is found in an animal cell and is where chemical reactions take place
  • It is a gloopy thing in an animal cell
  • It contains cell material and is found in plant cells
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2. What is the equation for magnification>

  • magnification= cell width/cell length
  • magnification=image size x real size
  • magnification= image size/real size
  • magnification= real size/image size

3. What does a nucleus do

  • Contains genetic material which controls the activities of the cell
  • where most of the chemical reactions happen
  • where proteins are made in the cell

4. A mitochondrian is approx 0.0025 mm long. Write this figure in standard form

  • 2.5 x 10 to the power of 4
  • 2.5 x 10 to the power of -3
  • 2.5 x 10 to the power of -2
  • 2.5 x 10 to the power of 3

5. An onion cell is viewed under x100 magnification. The image of the cell is 7.5mm wide. What's the real width?

  • 5mm
  • 5000mm
  • 50mm
  • 5cm
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