Wood Anatomy: Sapwood and Heartwood · NCERT Biology

The presence of tyloses is commonly associated with:

  1. Primary xylem
  2. Sapwood vessels only
  3. Heartwood vessels
  4. Phloem fibers and rays
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Correct answer: Heartwood vessels

Tyloses are balloon-like outgrowths that block xylem vessels. They are typically found in heartwood, preventing water conduction.

Difficulty: Medium Question 8 of 20

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