Permanent Tissue · Botany

The phloem of gymnosperms differs from that of angiosperms because it lacks:

  1. Sieve cells found in the phloem
  2. Parenchyma cells in the vascular tissue
  3. Sieve tubes and companion cells
  4. Phloem fibers
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Correct answer: Sieve tubes and companion cells

Gymnosperms possess sieve cells and albuminous cells instead of the more specialized sieve tube elements and companion cells found in angiosperms.

Difficulty: Medium Question 15 of 20

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