Assertion: The greater part of secondary xylem is lighter in colour and consists of dead elements with highly lighnified walls andiscalled heartwood.

Assertion: The greater part of secondary xylem is lighter in colour and consists of dead elements with highly lignified walls and is called heartwood.

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.

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.

The peripheral region of the secondary xylem is lighter in colour and known as the

Xylem consists of mainly dead elements.

Which xylem element have highly thickned walls and obliterated central lumen?

Which xylem element have highly thickned walls and obliterated central lumen?

Which xylem element have highly thickened walls and obliterated central lumen?

Match the columns given below correctly. {:("Types of wood" ,"Description"),("1. Early wood","i. Has narrow vessels."),("2. Late wood","ii. Dead elements with highly lignified walls"),("3. Heartwood","iv. Vessels with wider cavities."),("4. Sapwood","iv. Lighter in colour."):}