Transport Across The Cell Membrane! Trivia Quiz

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| By Ags2511
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Ags2511
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Quizzes Created: 8 | Total Attempts: 18,596
Questions: 8 | Attempts: 3,426

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Transport Across The Cell Membrane! Trivia Quiz - Quiz

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Questions and Answers
  • 1. 

    The process of diffusion is where the particles move from low to high concentration.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The particles move down the concentration gradient i.e. from high to low concentration.

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  • 2. 

    Particles which are free to move across the cell membrane have ________ energy.

    • A.

      Partial

    • B.

      Free moving

    • C.

      Kinetic

    • D.

      Kinematic

    Correct Answer
    C. Kinetic
    Explanation
    Particles that are free to move across the cell membrane have kinetic energy. Kinetic energy is the energy possessed by an object due to its motion. In the context of particles moving across the cell membrane, kinetic energy refers to the energy associated with their movement. This energy is essential for various cellular processes such as diffusion and active transport. Therefore, the correct answer is "Kinetic."

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  • 3. 

    Which of the following can move through the cell membrane as a means of simple diffusion?

    • A.

      Fatty acids

    • B.

      O2 and CO2

    • C.

      Ions

    Correct Answer(s)
    A. Fatty acids
    B. O2 and CO2
    Explanation
    1. lipid soluble compounds (fatty acids, steroids, alcohols)
    2. dissolved gasses (CO2 & O2)
    3. absorption of nutrients and excretion of some waste products

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  • 4. 

    Channel mediated facilitated diffusion is dependent on __________ channels to develop pathways for materials to pass through.

    • A.

      Carbohydrate

    • B.

      Glucose

    • C.

      Protein

    Correct Answer
    C. Protein
    Explanation
    Protein channels create pathways for materials to pass through the transportable membrane.

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  • 5. 

    The carrier in the mediated facilitated diffusion is known as the transporter.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Mediated facilitated diffusion is a process in which molecules are transported across the cell membrane with the help of specific carrier proteins. These carrier proteins are known as transporters. They bind to the molecules and facilitate their movement across the membrane. Therefore, the statement "The carrier in the mediated facilitated diffusion is known as the transporter" is true.

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  • 6. 

    Which form of transport sees the movement of substances across the membrane as going against the concentration gradient?

    • A.

      Passive

    • B.

      Facilitated

    • C.

      Secondary Active

    • D.

      Active

    Correct Answer
    D. Active
    Explanation
    diffusion is the movement of molecules down a diffusion gradient
    Active transport is the movement against a concentration gradient

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  • 7. 

    Which substance is required for the movement of substances across the membrane when going against the concentration gradient.

    • A.

      PC

    • B.

      Glucose

    • C.

      ATP

    Correct Answer
    C. ATP
    Explanation
    Carrier mediated process that does require energy provided by ATP. Movement of substance to another side of PM and subsequent release from carrier is fuelled by the breakdown of ATP.

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  • 8. 

    Osmosis is the diffusion of water across a semi-permeable membrane. The water will move across the membrane where there is a lower concentration of water and a higher concentration of________

    • A.

      Air

    • B.

      Solute

    • C.

      O2

    Correct Answer
    B. Solute
    Explanation
    Osmosis sees the movement of water across the membrane where the concentration of water is less and the solute is higher.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 03, 2012
    Quiz Created by
    Ags2511
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