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1 mark

Identify the incorrect statement.

  1. A
    Heart wood does not conduct water but gives mechanical support.
  2. B
    Sapwood is involved in conduction of water and minerals from root to leaf.
  3. C
    Sapwood is the innermost secondary xylem and is lighter in colour.
  4. D
    Due to deposition of tannins, resins, oils etc., heart wood is dark in colour.

Solution & Step-by-step Explanation

Heartwood is the innermost region of the secondary xylem; it is dark, durable, and does not conduct water.
Sapwood is the peripheral (outer) region of the secondary xylem; it is lighter in color and involved in water/mineral conduction.

Statement (C) incorrectly identifies sapwood as the "innermost" part.

Practice this question

Try it yourself before checking the explanation above.

Identify the incorrect statement.
A
Heart wood does not conduct water but gives mechanical support.
B
Sapwood is involved in conduction of water and minerals from root to leaf.
C
Sapwood is the innermost secondary xylem and is lighter in colour.
D
Due to deposition of tannins, resins, oils etc., heart wood is dark in colour.

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Anatomy of Flowering PlantsSecondary Growth

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