A&p Cell Function Quiz

13 Questions | Total Attempts: 199

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Cell Quizzes & Trivia

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Questions and Answers
  • 1. 
    Active transport is the movement of molecules and ions against their concentration gradients, from ____________________
    • A. 

      Higher to lower concentrations.

    • B. 

      The "uphill" movement of a molecule.

    • C. 

      High concentration of solute.

    • D. 

      Lower to higher concentrations.

  • 2. 
    Oncotic pressure is basically a kind of osmotic pressure but is specifically related to __________.
    • A. 

      Glucose

    • B. 

      Lipid Molecules

    • C. 

      Proteins

    • D. 

      Oxygen

  • 3. 
    What can NOT cross membranes during simple diffusion.
    • A. 

      Large Molecules

    • B. 

      Proteins

    • C. 

      Charged(polar) molecules

    • D. 

      All of the above

  • 4. 
    The charge of a molecule,size, lipid solubility, concentration gradient and surface membrane area can all effect the rate of diffusion.
    • A. 

      True

    • B. 

      False

  • 5. 
    Pick the two that match the definition below.Transport through the membrane that is not carrier mediated.
    • A. 

      Osmosis & facilitated diffusion

    • B. 

      Facilitated diffusion & active transport

    • C. 

      Simple diffusion & active transport

    • D. 

      Osmosis & simple diffusion

  • 6. 
    Active transport and facilitated diffusion require the action of specific carrier proteins in the membrane.
    • A. 

      True

    • B. 

      False

  • 7. 
    What would best describe the following:Movement of oxygen from blood into the tissues.
    • A. 

      Small lipophilic organic compounds crossing a membrane.

    • B. 

      Large molecules crossing a membrane.

    • C. 

      Polar compound crossing a membrane.

    • D. 

      A concentrated gradient.

  • 8. 
    Osmotic pressure  _____________________.
    • A. 

      Tries to make everything even.

    • B. 

      Forces water to move from where there is little dissolved to where there is lots dissolved.

    • C. 

      Aides in moving water molecules across a semipermeable membrane.

    • D. 

      All of the above

  • 9. 
    Energy is required during Facilitated diffusion.
    • A. 

      True

    • B. 

      False

  • 10. 
    What is one thing that is required during facilitated diffusion.
    • A. 

      Saturation

    • B. 

      Energy

    • C. 

      Transport protein

    • D. 

      All of the above

  • 11. 
    ______________ occurs when the hydrolysis of ATP is directly required for the function of the carriers. These carriers are composed of ______________ that span the thickness of the membrane.
    • A. 

      Secondary active transport, proteins

    • B. 

      Primary active transport, proteins

    • C. 

      Primary active transport, Na+

    • D. 

      Secondary active transport, Glucose

  • 12. 
    A process in which the plasma membrane invaginates to produce a deep, narrow furrow.
    • A. 

      Active transport

    • B. 

      Phagocytosis

    • C. 

      Pinocytosis

    • D. 

      Simple diffusion