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12R Transport Systems
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Biology
19 minutes ago by
Mr A Lemin
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  • Slide 1
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    12R Transport Systems

    Body text
  • Slide 2
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  • Question 3
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    Q.

    Which of the two organisms shown on the previous slide needs a circulatory system? Why?

  • Slide 4
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  • Question 5
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    Q.

    How does the size of an organism influence its need for a circulatory system?

  • Question 6
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    Q.

    How does the metabolic demand of an organism influence its need for a circulatory system?

  • Question 7
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    Q.

    How does the SA:Vol of an organism influence its need for a circulatory system?

  • Slide 8
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  • Question 9
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    Q.

    What is a circulatory system? Come up with a general definition...

  • Slide 10
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    A circulatory system is an interface between the environment and respiring cells. It must contain:

    • A pump

    • Fluid to transport O2, nutrients, CO2 and metabolites

    • A system of vessels to deliver fluid between an exchange surface and tissues

  • Slide 11
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  • Question 12
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    Q.

    What are some possible advantages and disadvantages of closed circulatory systems?

  • Question 13
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    Q.

    What are some possible advantages and disadvantages of open circulatory systems?

  • Slide 14
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  • Slide 15
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  • Question 16
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    Q.

    What are some possible advantages and disadvantages of a single circulatory system?

  • Question 17
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    Q.

    What are some possible advantages and disadvantages of a double circulatory system?

  • Slide 18
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  • Question 19
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    Q.

    In a closed circulatory system, blood is kept inside blood vessels. Suggest two advantages of keeping blood inside vessels.

  • Slide 20
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  • Question 21
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    Q.

    Fish have a single, closed circulatory system. State the meaning of the terms single circulatory system and closed circulatory system.

  • Slide 22
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  • Question 23
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    Q.

    Give three reasons why a large, multicellular animal, such as a mammal, needs a transport system.

  • Slide 24
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  • Slide 25
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