The Cell Lecture 4

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

1. What are connexons?

  • span membranes of two adjacent cells, made of desmosomes
  • span membranes of three adjacent cells, made of desmosomes
  • span membranes of two adjacent cells, made of connexins
  • span membranes of three adjacent cells, made of connexins
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Other questions in this quiz

2. What is exocytosis?

  • another word for phagocytosis
  • materials secreted from cell
  • waste matter inside cell
  • materials entering cell

3. What do tight junctions do?

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

4. What is diffusion rate determined by?

  • transmembrane proteins, size, charge and concentration gradient
  • temperature, size, charge and concentration gradient
  • temperature, size, charge and cytoplasmic fibres
  • temperature, saturation, charge and concentration gradient

5. What is secondary active transport?

  • uses established gradients and uses ADP indirectly
  • uses established gradients and uses ADP directly
  • uses established gradients and uses ATP indirectly
  • uses established gradients and uses ATP directly

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