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How do primary on secondary xylem differ in origin?

Updated: 8/19/2019
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13y ago

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The Vascular Cambium adds cells on both sides, producing secondary Xylem toward the inside of the stem

This is true for most vascular plants except for the order Myrtales that has phloem on both sides of the xylem. The cambium structure is quite different in this order.

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13y ago
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Q: How do primary on secondary xylem differ in origin?
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What is the common name for secondary xylem?

primary xylem is primary in nature & is derived from procambium. But secondary xylem is secondary in nature and derived from fascicular cambium and interfascicular cambium. Primary xylem is differentiated into protoxylem and metaxylem, but secondary xylem has no such differentiation. In primary xylem vessels and tracheids are long and narrow, and vessels don't have tyloses, but in secondary xylem, vessels are blocked by tyloses, and vessels and tracheids are wider and shorter. Xylem fibres are more abundant in secondary xylem , and found in small numbers in primary xylem. Also unlike in primary xylem, secondary xylem has differentiated into sapwood & heartwood.


What term describes wood secondary xylem epidermal tissue primary vascular tissue or secondary phloem?

Secondary xylem


What is closest to the center of a woody stem?

Vascular cambium


What is meat by primary and secondary growth in vascular plants?

The primary growth in vascular plants takes place with the differentiation of vascular tissue from parenchymatous cells and the secondary growth takes place when the intra-vascular and inter vascular cambium adds to the secondary phloem and secondary xylem.


The wood in the trunk and limbs of a tree is made up of?

C. secondary xylemI'm positive its c. secondary xylem


What is a woody tissue of a plant?

Xylem


How does xylem differ from phlegm?

Xylem is a one way flow


How are the inside of the soft stem and the woody stem different?

They have different texture andstyle/ The woody stem has massive xylem tissue, mostly secondary in origin, the soft stem has a very little amount of stele.


What terms describes?

secondary xylem


What part of a plant produces secondary growth?

Meristematic tissue (vascular cambium) produces secondary growth. In plant stems, this serves to increase the diameter, and it forms between the primary xylem and phloem.


What makes new xylem and phloem?

vascular cambium makes secondary xylem and phloem!!


What terms describes woods?

secondary xylem