Homeostasis And Cell Transport Review

30 Questions | Total Attempts: 175

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Homeostasis And Cell Transport Review

Welcome to the Electronic Learning Environment for Advanced Biology class. The purpose of cell transport is to maintain homeostasis. The different kinds of cell transport are divided into two categories: those that require energy and those that do not. You are given an unlimited number of attempts at this review. Each attempt will randomly sort questions and answers to help you with learning and test-taking skills. GOOD LUCK!


Questions and Answers
  • 1. 
    When a human red blood cell is placed in a hypotonic solution environment, it will ____
    • A. 

      Undergo cytolysis

    • B. 

      Undergo plasmolysis

    • C. 

      Experience a decrease in turgor pressure

    • D. 

      Be at equilibrium

  • 2. 
    The shrinking of plant cells when water leaves so the cell membrane pulls away from the cell wall. What condition is occuring as the cell is into a _____ solution.   (Please enter your answer in all lower case letters.)
  • 3. 
    Cells stay the same size when placed into a(n)_____ solution, because the amount of water leaving the cell is the same and the amount of water entering.
    • A. 

      Hypertonic

    • B. 

      Isotonic

    • C. 

      Hypotonic

    • D. 

      Mesotonic

  • 4. 
    During diffusion molecules tend to move ____.
    • A. 

      Up/against the concentration gradient

    • B. 

      From an area of lower to higher concentration gradient

    • C. 

      From an area of higher to lower concentration gradient

    • D. 

      In a direction that doesn't depend on concentration

    • E. 

      Down with the concentration gradient

  • 5. 
    When the concentration of solute inside and outside a cell membrane is the same, the cell has reached _____ _____.
    • A. 

      Maximum concentration

    • B. 

      Osmotic pressure

    • C. 

      Homeostasis pressure

    • D. 

      Dynamic equilibrium

  • 6. 
    _____ _____ is the movement of materials across a membrane from an area of lower concentration to an area of higher concentration.
    • A. 

      Active transport

    • B. 

      Passive transport

    • C. 

      Endocytosis

    • D. 

      Phagocytosis

    • E. 

      Ion Channel transport

  • 7. 
    A _____ is a membrane-bound organelle that pinches off from the cell membrane during endocytosis or fuses with the cell membrane during exocytosis.
    • A. 

      Active transport

    • B. 

      Passive transport

    • C. 

      Endocytosis

    • D. 

      Phagocytosis

    • E. 

      Ion Channel transport

    • F. 

      Vesicle

  • 8. 
    _____ is a type of enodcytosis in which cells ingest large particles of whole cells.
    • A. 

      Active transport

    • B. 

      Passive transport

    • C. 

      Endocytosis

    • D. 

      Phagocytosis

    • E. 

      Ion Channel transport

    • F. 

      Vesicle

  • 9. 
    _____ transport requires energy from ATP to move substances across membranes.   (Please enter your answer with a capital letter.)
  • 10. 
    Facilitated-diffusion carrier proteins and cell-membrane pumps both?
    • A. 

      Require an input of energy (ADP_

    • B. 

      Specific for the kinds of substances they transport

    • C. 

      Transport substance up their concentration gradients

    • D. 

      Transport substance down their concentration gradients

    • E. 

      Carry out active transport

  • 11. 
    The sodium-potassium pump transports Potassium ions out of the cell and Sodium ions into the cell.
    • A. 

      True

    • B. 

      False

  • 12. 
    The sodium-potassium pump transports Sodium ions out of the cell and Potassium ions into the cell.
    • A. 

      True

    • B. 

      False

  • 13. 
    _____ is the movement of a substance down the substance's concentration gradient.
    • A. 

      Diffusion

    • B. 

      Hypertonic solution

    • C. 

      Exocytosis

    • D. 

      Sodium - Potassium Pump

    • E. 

      Carrier protein

  • 14. 
    _____ is the movement of a substance by a vesicle to the outside of a cell membrane.
    • A. 

      Diffusion

    • B. 

      Hypertonic solution

    • C. 

      Exocytosis

    • D. 

      Sodium - Potassium Pump

    • E. 

      Carrier protein

  • 15. 
    Ion channels use transport proteins through which ions can pass.
    • A. 

      True

    • B. 

      False

  • 16. 
    _____ _____ is the movement of a substance against the substance's concentration gradient.   (Please observe correct sentence punctuation when entering your answers.)
  • 17. 
    Substance listed blew that can not pass through cell membranes by diffusion include.  (Please note that multiple answer are required for this question.)
    • A. 

      Carbon Dioxide

    • B. 

      Sodium ions

    • C. 

      Chloride ions

    • D. 

      Glucose

    • E. 

      Oxygen

  • 18. 
    The contractile vacuole of a paramecium should be active when the paramecium is in a(n):
    • A. 

      An isotonic environment

    • B. 

      A hypotonic environment

    • C. 

      A hypertonic environment

    • D. 

      Any environment

  • 19. 
    Facilitated diffusion is often used to transport molecules that are not soluble in lipids.
    • A. 

      True

    • B. 

      False

  • 20. 
    The substance that dissolves to make a solution is called a(n)____.
    • A. 

      Ionic solvent

    • B. 

      Diffuser

    • C. 

      Solvent

    • D. 

      Solute

    • E. 

      Concentrate

  • 21. 
    The diffusion of water across a selectively permeable membrane is called a(n)_____.
    • A. 

      Active transport

    • B. 

      Facilitated diffusion

    • C. 

      Passive transport

    • D. 

      Osmosis

    • E. 

      Phagocytosis

  • 22. 
    Energy (ATP) for active transport comes from a cell's organelle termed_____.   (Please enter your answer in all lower case letters.)
  • 23. 
    _____ is the process by which cells ingest external fluid, macromolecules, and large particles.
    • A. 

      Active transport

    • B. 

      Passive transport

    • C. 

      Endocytosis

    • D. 

      Phagocytosis

    • E. 

      Ion Channel transport

    • F. 

      Vesicle

  • 24. 
    The energy needed to power the Sodium-Potassium Pump is provided by the:
    • A. 

      Binding of ATP to the Na - K Pump

    • B. 

      Binding of ADP to the Na - K Pump

    • C. 

      Removal of phosphate group from ADP

    • D. 

      Removal of phosphate group from ATP

    • E. 

      Formation of ATP

  • 25. 
    Pinocytosis involves the transport of _____
    • A. 

      Large particles out of a cell.

    • B. 

      Fluids into a cell.

    • C. 

      Whole cells into another cell.

    • D. 

      Lysosomes out of a cell.

    • E. 

      The endoplasmic reticulum system into a cell.

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