Lesson 2.1.3

2.1.3 Osmosis, diffusion and membrane transport Quiz: Pearson Edexcel Biology, Unit 2

20 questions

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Lesson 2.1.3, Osmosis, diffusion and membrane transport: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 2: Genes and Health, written with Revision Ninja.

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The 20 questions

  1. What is the net movement of water across a partially permeable membrane called?

    • Endocytosis
    • Active transport
    • Osmosis
    • Facilitated diffusion
  2. Which process represents a form of passive transport across a cell membrane?

    • Active transport
    • Exocytosis
    • Endocytosis
    • Simple diffusion
  3. Which process uses ATP directly to move substances against a concentration gradient?

    • Facilitated diffusion
    • Active transport
    • Osmosis
    • Simple diffusion
  4. How does ATP drive active transport across a cell membrane?

    • Changes carrier shape
    • Dissolves fatty acids
    • Creates water pores
    • Opens channel proteins
  5. What type of transport uses membrane proteins without requiring ATP?

    • Facilitated diffusion
    • Simple diffusion
    • Active transport
    • Osmosis
  6. What structure formed by channel proteins allows specific ions to cross membranes?

    • Water-filled pore
    • Phospholipid tail
    • ATP-binding site
    • Hydrophobic core
  7. What term describes a plant cell placed in a solution of lower water potential?

    • Plasmolysed
    • Turgid
    • Lysed
    • Unchanged
  8. Which process moves large molecules such as proteins into a cell in vesicles?

    • Exocytosis
    • Endocytosis
    • Osmosis
    • Simple diffusion
  9. Why does a potato cylinder gain mass when placed in a sucrose solution?

    • Water enters cell
    • Water leaves cell
    • Sucrose enters cell
    • Sucrose leaves cell
  10. Which factor increases the rate of simple diffusion across a membrane?

    • Smaller surface area
    • Lower temperature
    • Thicker membrane
    • Steeper concentration gradient
  11. What barrier stops polar molecules from quickly crossing a membrane by simple diffusion?

    • Hydrophobic fatty tails
    • Hydrophilic phosphate heads
    • Glycoprotein receptors
    • Extracellular matrix
  12. Which feature is required for active transport to occur across a cell membrane?

    • Passive movement
    • ATP hydrolysis
    • Channel proteins
    • Downward gradient
  13. Why must cells use active transport to absorb certain mineral ions?

    • Down concentration gradient
    • Rapid lipid dissolution
    • Against concentration gradient
    • High membrane permeability
  14. Which solution causes a red blood cell to lose water by osmosis?

    • Equal water potential
    • Higher water potential
    • Pure distilled water
    • Lower water potential
  15. Which process moves substances out of a cell in vesicles using ATP?

    • Endocytosis
    • Exocytosis
    • Facilitated diffusion
    • Simple diffusion
  16. Which main factor prevents large solute molecules from crossing a partially permeable membrane?

    • Activation energy
    • Membrane thickness
    • Water potential
    • Molecular size
  17. Which process specifically refers to the net movement of water across a partially permeable membrane?

    • Active transport
    • Simple diffusion
    • Facilitated diffusion
    • Osmosis
  18. What happens to the mass of a potato cylinder placed in pure water?

    • Decreases then stabilizes
    • Stays the same
    • Gains mass
    • Loses mass
  19. Why does starch inside Visking tubing fail to turn external iodine solution blue-black?

    • Starch cannot diffuse out
    • Iodine cannot diffuse in
    • Temperature is too low
    • Starch is broken down
  20. Which process moves large volumes of fluid into a cell via vesicles?

    • Active transport
    • Endocytosis
    • Exocytosis
    • Facilitated diffusion

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