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Anatomy & Physiology: The Cell Membrane And Organelles

22 Questions
Anatomy & Physiology: The Cell Membrane And Organelles

A quiz testing knowledge of cell membrane and organelles

Questions and Answers
  • 1. 
  • 2. 
    Briefly explain the process of G-Proteins on the cell membrane. How does GDP release? How does GTP attach? What is it made up of? How does the protein change shape?
  • 3. 
    The ______________ acts as a packaging and processing center in the cell to process proteins. (hint: see picture above)
  • 4. 
    Proteins embedded in the cell membrane function to
    • A. 

      Transport materials in and out of the cell

    • B. 

      Carry genetic information

    • C. 

      Store excess water

    • D. 

      Produce energy for the cell

  • 5. 
    Which of the following is an enzyme filled organelle for the breaking down of waste in the cell?
    • A. 

      Mitochondria

    • B. 

      Centriole

    • C. 

      Lysosome

    • D. 

      Perioxisome

  • 6. 
    This drawing illustrates the important aspect of the cell membrane which is its __________________.
    • A. 

      Carboyhydrate bi-layer

    • B. 

      Layer of proteins

    • C. 

      Phosolipid bi-layer

  • 7. 
    The Fluid Mosaic Model suggests that the cell membrane can only have certain fluids pass through it, due to its phosolipid bi-layer.
    • A. 

      True

    • B. 

      False

  • 8. 
    The _______________________ are used in cell division and are located inside the centrosome. They are arranged in a 9+0 array in which microtubules line up in a circle and the two sit perpindicular to one another in the centrosome.
  • 9. 
    The Rough Endomplasmic Reticulum serves as the main site for synthesis of adenosine triphosphate for the cell.
    • A. 

      True

    • B. 

      False

  • 10. 
    These are membranous bubbles that may be formed by the Golgi apparatus, or by the pinching inward of the cell membrane to engulf external substances.
    • A. 

      Microvilli

    • B. 

      Vesicles

    • C. 

      Ribosomes

    • D. 

      Cytosol

  • 11. 
    Identify all of the lipids/steroids below that play a role in the cell membrane. After identifying, briefly explain what thier role is.
    • A. 

      Phospholipids

    • B. 

      Adipose

    • C. 

      Sphingolipids

    • D. 

      Glycerolipids

    • E. 

      Glycocalyx

    • F. 

      Cholesterol

  • 12. 
    Membrane proteins can be classified in two ways, by _________ and by ___________.[separate answers with a comma]
  • 13. 
    This structual element of the cell membrane aids in the rapid depolarization of the cells through ion transfer. It serves as a site of communication between cells. What is this structural element called?
    • A. 

      Desmosome

    • B. 

      Ligand-gated channel

    • C. 

      Gap junction

    • D. 

      Hemi-desmosome

  • 14. 
    Desmosomes connect cells to other cells.
    • A. 

      True

    • B. 

      False

  • 15. 
    ______________________ are a structural element that attach cells to the membrane underneath.
  • 16. 
    Some substances can pass through the cell membrane without facilitation. What sorts of substances can move through?
    • A. 

      Small, non-polar

    • B. 

      Large, polar

    • C. 

      Small, polar

    • D. 

      Small, ionic

  • 17. 
    There are three different types of gated channels. Check the channels below that are gated channels and then give an example of what flows through each one.
    • A. 

      Ligand

    • B. 

      Receptor

    • C. 

      Voltage

    • D. 

      Mechanical

    • E. 

      Antiport

  • 18. 
    • A. 

      Change in pressure

    • B. 

      Change in tension

    • C. 

      Change in salinity

    • D. 

      Change in orientation

  • 19. 
    There are several different types of carrier proteins. Carrier proteins that only carry through one type of molecule at a time are called ______________ proteins. Carrier proteins that can carry through two types of molecules at a time are called _________________ proteins. Carrier proteins that can carry through molecules headed in opposite directions are called ________________ proteins.[separate answers with a comma]
  • 20. 
    Saturation moves substances UP their concentration gradient.
    • A. 

      True

    • B. 

      False

  • 21. 
    ATP is needed when a cell is trying to move _______________ the concentration gradient.
  • 22.