In heartwood,the conduction of sap is mostly | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Heartwood $(duramen)$ is the older,non-functional part of the secondary xylem. As the tree ages,the inner vessels and tracheids of the secondary x

Vedclass · Accepted Answer

Deposition of various substances by tyloses

Vedclass · Answer

(B) Heartwood $(duramen)$ is the older,non-functional part of the secondary xylem. As the tree ages,the inner vessels and tracheids of the secondary xylem become blocked by the ingrowth of parenchyma cells into the vessel lumen through the pits,known as $tyloses$. These $tyloses$ often become filled with tannins,resins,oils,gums,aromatic substances,and essential oils,which make the wood hard,durable,and resistant to microbial attack. Consequently,the conduction of sap is completely blocked in the heartwood.

In heartwood,the conduction of sap is mostly blocked due to the presence of:

Similar Questions

Common bottle cork is a product of ............ .

The periderm includes:

The process by which plants become woody is:

What do the following figures represent?

In which of the following does the $Springwood$ (early wood) differ from the $Autumnwood$ (late wood)?

Vedclass Test Series

Exam Paper Generator

Online Exam Module