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Xylem, phloem and transpiration

10th grade (Year 11 in England) · 16 questions · Common Core: NGSS.HS-LS1-2 · England: KS4 Combined Science: Transport systems

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  1. Question 1

    In a potometer, the air bubble moves 16 mm in 2 minutes. What is the rate of water uptake in mm per minute?

    Answermm/min

  2. Question 2

    Root hair cells are adapted to absorb water because they…

    • A. contain many chloroplasts
    • B. have a large surface area
    • C. are dead
    • D. have thick waxy walls

  3. Question 3

    Xylem or phloem? It transports mineral ions.

    • A. xylem
    • B. phloem

  4. Question 4

    In a potometer, the air bubble moves 17 mm in 2 minutes. What is the rate of water uptake in mm per minute?

    Answermm/min

  5. Question 5

    What do guard cells do?

    • A. make chlorophyll
    • B. open and close the stomata
    • C. anchor the roots
    • D. carry sugar

  6. Question 6

    Xylem or phloem? It made of living cells.

    • A. xylem
    • B. phloem

  7. Question 7

    In a potometer, the air bubble moves 19 mm in 2 minutes. What is the rate of water uptake in mm per minute?

    Answermm/min

  8. Question 8

    Root hair cells are adapted to absorb water because they…

    • A. have a large surface area
    • B. contain many chloroplasts
    • C. have thick waxy walls
    • D. are dead

  9. Question 9

    Xylem or phloem? It carries water from roots to leaves.

    • A. xylem
    • B. phloem

  10. Question 10

    In a potometer, the air bubble moves 25 mm in 10 minutes. What is the rate of water uptake in mm per minute?

    Answermm/min

  11. Question 11

    What is transpiration?

    • A. loss of water vapour from leaves, mainly through stomata
    • B. taking in oxygen through roots
    • C. moving sugar in the phloem
    • D. making sugar in leaves

  12. Question 12

    Xylem or phloem? It transports mineral ions.

    • A. xylem
    • B. phloem

  13. Question 13

    In a potometer, the air bubble moves 15 mm in 5 minutes. What is the rate of water uptake in mm per minute?

    Answermm/min

  14. Question 14

    What do guard cells do?

    • A. make chlorophyll
    • B. carry sugar
    • C. open and close the stomata
    • D. anchor the roots

  15. Question 15

    Xylem or phloem? It carries dissolved sugars.

    • A. xylem
    • B. phloem

  16. Question 16

    In a potometer, the air bubble moves 15 mm in 5 minutes. What is the rate of water uptake in mm per minute?

    Answermm/min

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  1. 8 mm/min
  2. have a large surface area
  3. xylem
  4. 8.5 mm/min
  5. open and close the stomata
  6. phloem
  7. 9.5 mm/min
  8. have a large surface area
  9. xylem
  10. 2.5 mm/min
  11. loss of water vapour from leaves, mainly through stomata
  12. xylem
  13. 3 mm/min
  14. open and close the stomata
  15. phloem
  16. 3 mm/min