Transport in Cells

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1. What is a concentration Gradient?

  • The difference in the concentration of a chemical across a membrane
  • The difference between two or more substances CO2 levels
  • The difference between two or more substances solidness
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2. The rate of Diffusion can be affected by

  • Surface area of the cell membrane
  • All of the listed
  • Tempreture
  • Concentration gradient

3. What moves out of cells in a leaf by diffusion?

  • Oxygen
  • Water
  • Nitrogen
  • Carbon Dioxide

4. Diffusion is where particles of a substance in a higher concentration move to a lower- TRUE or FALSE

  • TRUE
  • FALSE

5. What does Multicellular mean?

  • Having the denseness of more than one cell
  • Having mor than one cell
  • Having a denseness of one cell
  • Having more than one cell thickness
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