Question

How is xylem in primitive angiosperm differ from the ones in the advanced angiosperms?

• A. Tracheids are absent in xylems of advanced angiosperms
• B. Tracheids are restricted to leaf margin in advanced angiosperms
• C. Tracheids transport the major amount of water in advanced angiosperms
• D. Tracheids transport the major amount of water in primitive angiosperms

Answer 1

Answer: (B), (D)

The correct options are
B

Tracheids are restricted to leaf margin in advanced angiosperms

D

Tracheids transport the major amount of water in primitive angiosperms

The main difference between the xylem of primitive and advanced angiosperms is the amount of tracheids present in them. While tracheids are the prominent transporter of water in primitive angiosperms, the same is restricted to leaves in advanced angiosperms.