7th Grade Life Science Quiz

24 Questions | Total Attempts: 511

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7th Grade Science Quizzes & Trivia

A few life science questions


Questions and Answers
  • 1. 
    How does the movement of materials across the cell membrane relate to an organism's survival?
    • A. 

      Controlls what gets in and out

    • B. 

      Because their cells are mostly water

    • C. 

      They shrivel up

    • D. 

      It ferns up and takes its normal shape again

  • 2. 
    The movement of particle from areas of high concentration to areas of low concentration is called
    • A. 

      Water

    • B. 

      Molecules

    • C. 

      Diffusion

    • D. 

      Osmosis

  • 3. 
    The fluids that surround and fill a cell are mad emostly of
    • A. 

      Water

    • B. 

      Molecules

    • C. 

      Diffusion

    • D. 

      Osmosis

  • 4. 
    Water is made up of particles called
    • A. 

      Water

    • B. 

      Molecules

    • C. 

      Diffusion

    • D. 

      Osmosis

  • 5. 
    The diffusion of water through a semipermeable membrane is called
    • A. 

      Water

    • B. 

      Molecules

    • C. 

      Diffusion

    • D. 

      Osmosis

  • 6. 
    Describe what happens in osmosis
    • A. 

      Water travels into cells

    • B. 

      Because their cells are mostly water

    • C. 

      They shrivel up

    • D. 

      It ferns up and takes its normal shape again

  • 7. 
    Why is osmosis important to cell functions?
    • A. 

      Water travels into cells

    • B. 

      Because their cells are mostly water

    • C. 

      They shrivel up

    • D. 

      It ferns up and takes its normal shape again

  • 8. 
    Describe what would happen if you put red blood cells into a salty solution
    • A. 

      Water travels into cells

    • B. 

      Because their cells are mostly water

    • C. 

      They shrivel up

    • D. 

      It ferns up and takes it normal shape again

  • 9. 
    Describe what happens to a wilted plant when it is watered
    • A. 

      Water travels into cells

    • B. 

      Because their cells are mostly water

    • C. 

      They shrivel up

    • D. 

      It ferns up and takes its normal shape again

  • 10. 
    Particels moving across a cell membrane without using energy
    • A. 

      Channels

    • B. 

      Active transport

    • C. 

      Passive transport

    • D. 

      Diffusion and osmosis

  • 11. 
    Passageways in a cell membrane
    • A. 

      Channels

    • B. 

      Active transport

    • C. 

      Passive Transport

    • D. 

      Diffusion and osmosis

  • 12. 
    The movement of particles from an area of low concentration to an area of high concentration across a cell membrane
    • A. 

      Channels

    • B. 

      Active

    • C. 

      Passive

    • D. 

      Diffusion and osmosis

  • 13. 
    Two examples of passive transport
    • A. 

      Channels

    • B. 

      Active

    • C. 

      Passive

    • D. 

      Diffusion and osmosis

  • 14. 
    What a cell need to transport particles by active transport
    • A. 

      Active

    • B. 

      Passive

    • C. 

      Diffusion and osmosis

    • D. 

      Energy

  • 15. 
    Jfkdjlfjlsa
    • A. 

      Idk

    • B. 

      Two chunkies

    • C. 

      Toe in toepekia

    • D. 

      Loving you

  • 16. 
    The channels in a cell membrane are made up of
  • 17. 
    A large particle can enter a cell by an active transport process called
    • A. 

      Endocytosis

    • B. 

      Exocytosis

  • 18. 
    A large particle can leave a cell by an active transport process called
    • A. 

      Endocytosis

    • B. 

      Exocytosis

  • 19. 
    What happens to a cell during the process of endocytosis
    • A. 

      Vesicles form sacs from pieces of the cell membrane

    • B. 

      Carries particles to the membrane. Vesicle fuses with cell membrane and release particles outside of cell.

  • 20. 
    What happens to a ell during the process of exocytosis
    • A. 

      Vesicles form sacs from pieces of the cell membrane

    • B. 

      Carries particles to the membrane. Vesicle fuses with cell membrane and release particles outside of cell.

  • 21. 
    Controls all cell activity and is  found in both animal and plant
    • A. 

      Nucleus

    • B. 

      Ncleolus

    • C. 

      Cell membrane

    • D. 

      Cell wall

  • 22. 
    Protective barrier that encloses a cell and is found both in the plant and animal cell
    • A. 

      Nucleus

    • B. 

      Cell membrane

    • C. 

      Nucleolus

    • D. 

      Cell wall

  • 23. 
    Makes proteins and is found in the plant and animal cell
    • A. 

      Nuleus

    • B. 

      Cell membrane

    • C. 

      Ribosome

    • D. 

      Mitochondria

  • 24. 
    Main power source in a cell and is found in the plant and animal
    • A. 

      Nucleus

    • B. 

      Ribosome

    • C. 

      Cell membrane

    • D. 

      Mitochondria

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