Question

The main path for movement of water against the force of gravity i.e., ascent of sap in herbaceous dicots is ?

• A. Tracheids
• B. Vessels
• C. Sieve tubes
• D. All of the above

Answer 1

The correct option is B Vessels

Xylem tissue is a complex permanent tissue specialized to transport water in plant body. Xylem tracheids are found in a number of plant groups like angiosperms, gymnosperms and pteridophytes. Bryophytes do not possess vascular tissues. Hence, bryophytes do not attain height. Xylem tracheids are present in pteridophytes and gymnosperms. These plant groups lack vessels. Vessels are characteristics of angiosperms only. In angiosperms, xylem vessels form the main channel for ascent of sap.

So, the correct answer is 'Vessels'