General Biology 1: Transport Mechanism Quiz
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Questions and Answers

What is the main characteristic of passive transport?

  • The movement is from an area of lower concentration to an area of higher concentration
  • It involves the diffusion of water through a selectively permeable membrane
  • It requires energy
  • The movement of molecules is from an area of higher concentration to an area of lower concentration (correct)

    • What happens when a cell is placed in a hypertonic solution?

  • The cell swells due to an influx of water
  • Water moves from inside the cell into the solution, causing the cell to shrink (correct)
  • Water moves equally in both directions and the cell remains the same size
  • The solution has a lower concentration of solutes and a higher concentration of water than inside the cell

    • What is the result of osmosis?

  • Water moves from an area of high concentration to an area of low concentration
  • The movement of particles down their concentration gradient
  • The diffusion of water through a selectively permeable membrane (correct)
  • Water moves equally in both directions and the cell remains the same size

    • What is a hypertonic solution characterized by?

    <p>It has a lower concentration of solutes and a higher concentration of water than inside the cell</p> Signup and view all the answers

    What type of transport refers to the movement of particles down their concentration gradient?

    <p>Simple Diffusion</p> Signup and view all the answers

    What is the main characteristic of isotonic solution?

    <p>It has an equal concentration of solutes to the concentration inside the cell</p> Signup and view all the answers

    Which process describes the movement of larger molecules like glucose through the cell membrane?

    <p>Facilitated Diffusion</p> Signup and view all the answers

    What happens to a cell when placed in a hypotonic solution?

    <p>It swells and bursts open (cytolysis)</p> Signup and view all the answers

    What type of transport requires energy to move molecules against the concentration gradient?

    <p>Active Transport</p> Signup and view all the answers

    What are proteins that work as pumps and are involved in the active transport of ions across the membrane called?

    <p>Protein Pumps</p> Signup and view all the answers

    What happens in exocytosis?

    <p>Large amount of materials exits the cell via fusion with the cell membrane</p> Signup and view all the answers

    What suffix is used for enzymes?

    <p>-ase</p> Signup and view all the answers

    Which type of enzymes catalyzes oxidation reactions?

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

    What does receptor-mediated endocytosis involve?

    <p>Endocytosis triggered by specific molecules binding to receptors on the cell membrane</p> Signup and view all the answers

    What type of solution has a lower concentration of solutes and a higher concentration of water than inside the cell?

    <p>Hypotonic Solution</p> Signup and view all the answers

    What happens when large vesicles are used to transport materials through the membrane?

    <p>Bulk Transport</p> Signup and view all the answers

    What is the main characteristic of passive transport?

    <p>Movement from higher concentration to lower concentration</p> Signup and view all the answers

    What is the result of placing a cell in a hypertonic solution?

    <p>Water moves into the cell</p> Signup and view all the answers

    What is characteristic of isotonic solution?

    <p>Water moves equally in both directions</p> Signup and view all the answers

    What describes the movement of particles down their concentration gradient?

    <p>Simple diffusion</p> Signup and view all the answers

    What happens when large vesicles are used to transport materials through the membrane?

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

    What type of transport requires energy to move molecules against the concentration gradient?

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

    What is the main characteristic of facilitated diffusion?

    <p>Movement of larger molecules through the cell membrane</p> Signup and view all the answers

    Which type of solution has a higher concentration of solutes and a lower concentration of water than inside the cell?

    <p>Hypertonic solution</p> Signup and view all the answers

    What is the result of a cell being placed in a hypertonic solution?

    <p>Cell shrinks and may die</p> Signup and view all the answers

    What is the main characteristic of active transport?

    <p>Requires energy to move molecules against the concentration gradient</p> Signup and view all the answers

    What happens in endocytosis?

    <p>Solids enter the cell</p> Signup and view all the answers

    What are enzymes?

    <p>Biological catalysts that speed up chemical reactions</p> Signup and view all the answers

    What type of enzymes catalyzes oxidation reactions?

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

    What happens to a cell when placed in a hypotonic solution?

    <p>Cell swells and bursts open (cytolysis)</p> Signup and view all the answers

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