Cellular Membranes and Transport Proteins Quiz
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Cellular Membranes and Transport Proteins Quiz

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Questions and Answers

What is the function of transport proteins in the plasma membrane?

  • To move large molecules using bulk transport
  • To provide energy for active transport
  • To control passage across cellular membranes (correct)
  • To regulate the movement of small molecules
  • Which of the following is true about the plasma membrane?

  • It separates the living cell from its surroundings (correct)
  • It is composed mainly of carbohydrates
  • It allows all substances to cross it equally
  • It does not regulate inbound and outbound traffic
  • Which type of transport requires both energy and a transport protein?

  • Bulk transport
  • Active transport (correct)
  • Passive transport
  • Endocytosis
  • What are membranes composed mainly of?

    <p>Phospholipids</p> Signup and view all the answers

    What type of molecules move in and out of the cell using exocytosis or endocytosis?

    <p>Large molecules</p> Signup and view all the answers

    Which of the following is NOT a component of cellular membranes?

    <p>Nucleic acids</p> Signup and view all the answers

    What is the term for the movement of small molecules across the cell membrane without the input of energy?

    <p>Passive transport</p> Signup and view all the answers

    What type of molecules require transport proteins to move across the cell membrane?

    <p>Small molecules</p> Signup and view all the answers

    What is the term for the process by which large molecules move in and out of the cell using bulk transport?

    <p>Endocytosis</p> Signup and view all the answers

    What is the main function of the plasma membrane?

    <p>To separate the cell from its surroundings</p> Signup and view all the answers

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