Question

Which of the following is the function of heartwood? () Mechanical support (2)Radial conduction of water and minerals (3)Lateral conduction of food (4)Minimise water loss in water stress

Answer 1

Answer:

1. Mechanical support

Explanation:

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Answer 2

Answer:

(1)  Mechanical support

Explanation:

• Sapwood is involved in the conduction of water and minerals from the roots to the leaves, whereas heartwood gives mechanical support to the stem.
• Due to material accumulation in the middle portion of the stem, heartwood, a component of the xylem, is dark-colored and non-functional.
• Its purpose is to give the tree mechanical support.

The xylem parenchyma conducts water and minerals radially.

Phloem is responsible for food transmission.

Cuticle and bark help to prevent water loss.

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