Xylem tubes are rigid because they include this chemical, not found in phloem, in their cell walls.
A) ribose
B) starch
C) lignin
D) nitrogen
E) DNA

Name: Xylem tubes are rigid because they include this chemical, not found in phloem, in their cell walls. A) ribose B) starch C) lignin D) nitrogen E) DNA
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Question

Quizplus · Accepted Answer

Xylem tubes are rigid because they include lignin in their cell walls, which provides structural support and allows them to transport water and minerals efficiently.

Xylem Tubes Are Rigid Because They Include This Chemical, Not