Question

The following diagrams show the types of secondary thickenings in the xylem vessels. Identify the types labelled from A to F. Choose the correct option from those given.

• A. A = Spiral, B = Annular, C = Reticulate, D = Scalariform, E.= Pitted with border, F = Pitted, simple
• B. A = Annular, B = Spiral, C = Scalariform, D = Reticulate, E = Pitted with border, F = Pitted, simple
• C. A = Annular, B = Spiral, C = Scalariform, D = Reticulate, E = Pitted, simple, F = Pitted with border.
• D. A = Spiral, B '= Annular, C = Scalariform, D = Reticulate, E = Pitted with border, F = Pitted, simple

Answer 1

Answer: (B)

A = Annular, B = Spiral, C = Scalariform, D = Reticulate, E = Pitted with border, F = Pitted, simple

Answer 2

Answer (b) A = Annular, B = Spiral, C = Scalariform, D = Reticulate,
E = Pitted with border, F = Pitted, simple