Biology Test

9 Questions | Total Attempts: 495

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Biology Test

Chapter 5 Biology Test


Questions and Answers
  • 1. 
    A cell can keep its necessary balance only within limits of _______________ changes.
    • A. 

      Organism

    • B. 

      Muscle

    • C. 

      Environmental

    • D. 

      Membrane

  • 2. 
    Homeostasis involves the processes that keep a certain range of concentration of substances. The concentration of substances is not the same for a cell, tissue fluid, and blood.
    • A. 

      True

    • B. 

      False

  • 3. 
    When a substance passes through a membrane, the membrane is ________ to that substance.
    • A. 

      Selectively permeable

    • B. 

      Permeable

    • C. 

      Diffused

  • 4. 
    The gradual, even spreading out of molecules is known as
    • A. 

      Particles

    • B. 

      Molecules

    • C. 

      Diffusion

    • D. 

      Plasma

  • 5. 
    Substances diffuse from areas of lesser concentration to areas of greater concentration.
    • A. 

      True

    • B. 

      False

  • 6. 
    What is osmosis?
    • A. 

      Concentration of water

    • B. 

      Diffusion of water

    • C. 

      Gravity of water

    • D. 

      None of the above

  • 7. 
    The _________ helps to keep a water-balance in the cells.
    • A. 

      Contractile vacuoles

    • B. 

      Hypotonic

    • C. 

      Turgor pressure

    • D. 

      Plasmolysis

  • 8. 
    A cell has no control over osmosis.
    • A. 

      True

    • B. 

      False

  • 9. 
    When the plasma membrane moves molecules against diffusion pressure, energy is needed. This is called _________.
    • A. 

      Lower transport

    • B. 

      Hypothesis

    • C. 

      Endocytosis

    • D. 

      Active transport