The Cell Lecture 4

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  • Created by: saraht83
  • Created on: 29-04-16 10:56

1. What is diffusion rate determined by?

  • temperature, size, charge and concentration gradient
  • temperature, saturation, charge and concentration gradient
  • temperature, size, charge and cytoplasmic fibres
  • transmembrane proteins, size, charge and concentration gradient
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Other questions in this quiz

2. What model describes the plasma membrane?

  • phospholipid trilayer model
  • fluid mosaic model
  • fluid phospholipid model
  • fluid bilayer model

3. What do transmembrane proteins do?

  • span the entire length of membrane
  • span half the length of membrane
  • carry receptor molecules
  • have a channel to allow proteins through

4. Are peripheral membrane proteins embedded?

  • no
  • yes

5. What do tight junctions do?

  • link adjacent epithelial cells, restrict protein migration, prevent substances moving through intercellular space
  • link adjacent muscle cells, restrict protein synthesis, prevent substances moving through intercellular space
  • link adjacent endothelium cells, restrict protein migration, prevent protein synthesis
  • link adjacent muscle cells, restrict protein migration, prevent substances moving through intercellular space

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