Vesicles in Cell Biology

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Questions and Answers

What are vesicles called if they are prepared artificially?

  • Extracellular vesicles
  • Multilamellar liposomes
  • Lysosomes
  • Unilamellar liposomes (correct)

Which of the following is a correct statement about vesicles?

  • Vesicles are structures within a cell that consist of liquid enclosed by a lipid bilayer. (correct)
  • Vesicles are structures outside a cell that consist of cytoplasm enclosed by a lipid bilayer.
  • Vesicles are structures within a cell that consist of cytoplasm enclosed by a lipid bilayer.
  • Vesicles are structures outside a cell that consist of liquid enclosed by a lipid bilayer.

What is the function of vesicles?

  • To release their contents outside the cell
  • To fuse with other organelles within the cell
  • To perform a variety of functions
  • All of the above (correct)

What is the term for a vesicle released from the cell?

<p>Extracellular vesicle (C)</p> Signup and view all the answers

What is the term for vesicles with only one phospholipid bilayer?

<p>Unilamellar liposomes (C)</p> Signup and view all the answers

Which of the following best describes membrane potential?

<p>The movement of charges from the interior to exterior of a biological cell (D)</p> Signup and view all the answers

What is the typical range of membrane potential in animal cells?

<p>-80 mV to -40 mV (B)</p> Signup and view all the answers

What is the function of the membrane in a biological cell?

<p>To insulate the cell from its surroundings (A)</p> Signup and view all the answers

What are transmembrane proteins responsible for?

<p>Establishing concentration gradients (B)</p> Signup and view all the answers

What is the unit of measurement for membrane potential?

<p>Milli volts (D)</p> Signup and view all the answers

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