Distinguish heartwood from sapwood.

1.	Distinguish heartwood from sapwood.
Answer» Heartwood (Duramen) 1. Represents secondary xylem found in the centre of the stem. 2. Appears dark in colour due to deposition of dyes, tannins, etc. 3. Composed of older secondary xylem. 4. Main function is mechanical and wood is durable as timber. Sapwood (Alburnum) 1. Represents the secondary xylem which surrounds the heartwood. 2. Appears light in colour. 3. Composed of younger secondary xylem 4. Main function is conduction of water and minerals.

Answer»

Heartwood (Duramen)

1. Represents secondary xylem found in the centre of the stem.

2. Appears dark in colour due to deposition of dyes, tannins, etc.

3. Composed of older secondary xylem.

4. Main function is mechanical and wood is durable as timber.

Sapwood (Alburnum)

1. Represents the secondary xylem which surrounds the heartwood.

2. Appears light in colour.

3. Composed of younger secondary xylem

4. Main function is conduction of water and minerals.

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