Anatomy of Flowering Plants · NEET Preparation Botany

Heartwood (duramen) differs from sapwood (alburnum) in that heartwood:

Practice question from Anatomy of Flowering Plants (NEET Preparation Botany), with the correct answer and a step-by-step solution.

hard · MCQ · Q-0C97A2

Heartwood (duramen) differs from sapwood (alburnum) in that heartwood:

  1. A.Is involved in active water conduction
  2. B.Contains living elements and starch
  3. C.Is dark in color due to deposition of organic compounds like tannins and resinsCorrect answer
  4. D.Is the peripheral part of the secondary xylem

Solution

Heartwood is the darker, dead, central part of secondary xylem in old trees, filled with tannins, resins, oils, etc., making it durable and resistant to microbes, whereas sapwood is lighter and conducts water.

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