Q11 of 51 Page 30

If one debarks a tree, what parts of the plant is being removed?

If one debarks a tree then periderm part (i.e., all tissues exterior to vascular cambium) of the plant is being removed.

Periderm contains phellogen, phellem and phelloderm.


Bark also contains secondary phloem.


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9

Give one basic functional difference between phellogen and phelloderm?

 10

Arrange the following in the sequence you would find them in a plant starting from the periphery – phellem, phellogen, phelloderm.

 12

The cross-section of a plant material showed the following features when viewed under the microscope.

a. The vascular bundles were radially arranged.


b. Four xylem strands with exarch condition of protoxylem.


To which organ should it be assigned?


 13

What do hard wood and soft wood stand for?