Other questions in this quiz

2. What is osmosis?

  • Net movement of water from high water potential to low water potential
  • Movement of ion across membranes through protein pumps that use ATP to move within the mebrane
  • Channel proteins provide pathways for charged molecules or those that are too big,
  • Vesicles moving large amount of substance in and out of the cell via ATP

3. What are the use of proteins in the plasma cell membrane?

  • have a carbohydrate attached and is used for cell signaling, adhesion and cell surface antigens
  • Channel proteins allow larger molecules and ions through, carrier proteins actively transport things in and out of the cell
  • Maintains the stability and fluidity of the bi-layer when the temperature fluctuates

4. Which of these is not correct?

  • Telophase - Chromatids have reached the poles, nuclear envelope reforms and chromosomes begin to unravel
  • Anaphase- Centromeres split and the chromatids move to the poles of the cell
  • Cytokinesis - Cytoplasm spilts to make two genetically different cells
  • Metaphase -Chromosomes line up at equator of cell, with the spindle attached at the centromere
  • Prophase - Supercoiling of chromosomes, nuclear envelope breakdown, spindle forms

5. What are glycoprotiens used for?

  • have a carbohydrate attached and is used for cell signaling, adhesion and cell surface antigens
  • Maintains the stability and fluidity of the bi-layer when the temperature fluctuates
  • Channel proteins allow larger molecules and ions through, carrier proteins actively transport things in and out of the cell

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