Cells

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  • Created by: cwolfe09
  • Created on: 02-05-16 11:38

1. Facilitated diffusion is the passive movement of molecules across membranes, down their concentration gradient, which is aided by carrier protein molecules.

  • True
  • the movement of molecules against it's concentration gradient, using energy in the form of ATP, and transport proteins
  • the movement of molecules down a concentration gradient, from an area of high concentration, to an area of low concentration.
  • the movement of water molecules from a region of higher water potential, to a region of lower water potential, across a partially permeable membrane
  • None of the above
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Other questions in this quiz

2. The golgi apparatus modifies and then packages proteins into vesicles?

  • true
  • false

3. Diffusion is the movement of molecules against it's concentration gradient, using energy in the form of ATP, and transport proteins

  • False - the movement of molecules down a concentration gradient, from an area of high concentration, to an area of low concentration.
  • True
  • False - the movement of water molecules from a region of higher water potential, to a region of lower water potential, across a partially permeable membrane
  • False - the passive movement of molecules across membranes, down their concentration gradient, which is aided by carrier protein molecules.

4. what is the relationship between actual size, magnification and image size?

  • magnification = actual size/image size
  • actual size = magnification/image size
  • actual size = image size/magnification
  • image size = magnification/actual size

5. channel proteins are shaped so that a specific molecule can fit into them at the membrane surface. when the specific molecule fits, the protein changes shape to allow the molecule through to the other side.

  • False
  • True

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