Other questions in this quiz

2. Which of these is not correct?

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

3. What is cell signalling not used for?

  • Movement of molecules from an area of high concentration to low
  • Hormones will attach to a receptor of target cells and internal response is triggered
  • Drugs like beta- blockers or aspirin will bind to certain receptors on cells
  • Some drugs that treat depression like diazepan mimic a neurotransmitter

4. What are glycoprotiens used for?

  • Channel proteins allow larger molecules and ions through, carrier proteins actively transport things in and out of the cell
  • 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

5. What is not part of the Fluid Mosaic model?

  • 7-10nm thick
  • Glycolipids
  • Cholesterol
  • Constantly moving and diffrent shapes
  • Used for cell signalling
  • Phosopholipid bilayer
  • Proteins

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