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Describe secondary xylem....

Describe secondary xylem.

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How does secondary xylem or wood form?

Assertion: The wood is actually secondary xylem. Reason: Secondary growth occurs in most of the monocot roots and stems.

Inner, darker & harder portion of secondary xylem that cannot conduct water an older dicot stem is called

In a mature dicot stem which has undergone seconday growth, youngest layer of secondary xylem is situated

Study carefully the following statements and select the incorrect one(s). (i). Lateralroots develop from pericycle. (ii) . Endodermis is the innermost layer of cortex (iii). Sapwood is the central, dark coloured, non-conducting part of secondary xylem.

The secondary xylem is also called ________

The axial system of the secondary xylem includes:

Assertion: Secondary growth usually occurs in dicotyledonous stems. Reason: The vascular cambium present between xylem and phloem possesses the ability to form secondary xylem and secondary phloem respectively.

_____ and _______ get gradually crushed due to the continued formation of secondary xylem and phloem.

Assertion: The greater part of secondary xylem is lighter in colour and consists of dead elements with highly lignified walls and is called heartwood. Reason The peripheral region of the secondary xylem is dark brown in colour and is called sapwood.