Quiz  /  Transport In Plants Class 11 MCQ Questions With Answers

  • 1. 
    Which apparatus is needed to measure the rates of transpiration?

  • Pipette
  • Potometer
  • Bunsen burner
  • Plants

  • 2. 
    What is meant by the term "Translocation"?

  • The process of releasing energy from glucose.
  • The process of transporting manufactured food throughout the plant
  • The process by which water is lost in the form of water vapour
  • The process by which plants make their own food.

  • 3. 
    What is shown in the above image?

  • Xylem only
  • Phloem only
  • Vascular bundle in a root
  • Vascular bundle in a stem

  • 4. 
    Which of the following increases the rate of transpiration?

  • Air around the leaf with high humidity.
  • Air molecules around the leaf with less kinetic energy.
  • An absence of light falling on the leaf.
  • Water molecules in the leaf with more kinetic energy.

  • 5. 
    In which of the following can lignin be found?

  • Stalk
  • Xylem
  • Phloem
  • Leaves

  • 6. 
    What does the above image show?

  • Xylem only
  • Phloem only
  • Vascular bundle in a root
  • Vascular bundle in a stem

  • 7. 
    By which of the following processes do water molecules enter into the plant?

  • Osmosis
  • Active transport
  • Diffusion
  • Transpiration

  • 8. 
    For shoots growing from tubers, food moves from the tubers to the shoots. Which of the following statements in correct?

  • Sink to source
  • Source to sink
  • Sink to sink
  • Source to source

  • 9. 
    Which of the following statements is false about xylem vessels?

  • They are made up of dead cells.
  • They contain chloroplasts and nuclei.
  • They are hydrophobic.
  • Their walls are made of cellulose and lignin.

  • 10. 
    Which of the following is false about the phloem tubes?

  • They do not contain cytoplasm
  • They contain companion cells
  • Their end walls have not been completely broken down.
  • They transport sugars only.

  • 11. 
    Which of the following is used to transport water & mineral ions, while also providing structural support to the plant?

  • Phloem
  • Mesophyll
  • Stem
  • Xylem

  • 12. 
    Define the term "Transpiration".

  • Exchange of gases between the leaf and atmosphere.
  • Loss of water vapour from the leaves and stems of the plant.
  • Movement of water from the roots to the leaves.
  • Movement of water through the cells of the leaf.

  • 13. 
    Which of the following is responsible for the transport of sugars ONLY.

  • Spongy mesophyll
  • Epidermis
  • Xylem
  • Phloem

  • 14. 
    Which of the following will decrease the rate of transpiration?

  • High temperatures.
  • Low humidity.
  • A still and calm day.
  • An abundance of water.

  • 15. 
    Which of the following is responsible for the absorption of mineral ions?

  • Active transport
  • Osmosis
  • Diffusion
  • Transpiration
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