Biology: Cell Environments and Osmosis
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Questions and Answers

What happens to an erythrocyte placed in a hypertonic solution?

  • It would remain unchanged
  • It would crenate, becoming distorted in shape (correct)
  • It would swell and burst
  • It would shrink slightly

    • What is the function of membrane proteins?

  • Act as enzymes and receptor sites; function for chemical transport, intercellular communication, cell-to-cell recognition, and attachment to the cytoskeleton and extracellular matrix (correct)
  • Maintain cell shape
  • Prevent osmosis
  • Provide energy for the cell

    • What is the role of B-lymphocytes in the immune response?

  • Secrete antibodies for humoral immune response (correct)
  • Regulate T-lymphocytes
  • Destroy antigens directly
  • Produce cytokines for inflammation

    • What happens to secretory proteins in the process of vesicle formation and transport?

    <p>They are assembled by ribosomes on the rough ER and then pass through channels to the Golgi body before being encapsulated in vesicles</p> Signup and view all the answers

    What happens to a cell in an isotonic environment?

    <p>The cell has equal concentration with the solution outside the cell</p> Signup and view all the answers

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