Question

The tracheids differ from vessels in having –
(a) thick wall
(b) bordered pit
(c) presence of pitted end wall
(d) spiral thickening

Answer 1

Answer:

(b) bordered pit is correct answer

Answer 2

The tracheids and vessels:

• Option “C” is correct i.e. the presence of pitted end wall.

• The tracheids are different from vessels for having the presence of a pitted end wall.

• Tracheids have larger pits in smaller numbers while vessels have small pits in larger numbers. Both vessels and tracheids show the removal of lignin in the form of complete curved bands or in form of diagonal rods of the ladder named as calariform thickening.

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