Question

Tracheids of angiosperms are recognised by the presence of

• A. Bordered pits
• B. Scalariform thickening
• C. Both of the above
• D. None of the above

Answer 1

The correct option is C Both of the above

Secondary walls of tracheids are deposited in different manners, so that the tra­cheids may be annular, spiral, reticulate, scalariform or pitted. Bordered pits are most abundant. The communication with neighboring tracheids and with other cells, living or non-living is possible due to the pits.

Thus, the correct answer is option C.