pls. answer

Asked by raghavendran7 | 9th Nov, 2009, 06:23: PM

Expert Answer:

Vessels are wider than tracheids.

The ends of tracheids are closed whereas the ends of vessels are open.

Tracheids have tapering ends whereas vessels have non-tapering ends.

Water passes from cell to cell in tracheids laterally via the pits. Water passes laterally through pits as well as vertically from the ends in vessels.

The walls of tracheids are thicker than those of the vessels.

Vessels are usually an order of magnitude longer than tracheids.

Vessels lack the low end-wall resistance of tracheids.

The septa between tracheids are intact whereas the septa between adjacent cells are lost in vessels.

Answered by  | 10th Nov, 2009, 07:08: AM

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