Question

Duramen is

• A. Sapwood
• B. Heartwood
• C. Bark
• D. Periderm

Answer 1

The correct option is B

Heartwood

The correct option is B.

Explanation of the correct option:

1. Heartwood is often referred to as duramen.
2. The center is made up of dead cells.
3. Heartwood is formed from sap woods.
4. The central or interior dark-colored portion of the tree is known as the heartwood.
5. These are non-functional xylem.

Explanation of the incorrect option:

Option A:

1. An old stem's exterior has been seen to contain sapwood.
2. The cells of sapwood are younger.
3. It is a short-lived wood with a light color.
4. It is also known as the alburnum.

Option C:

1. The bark is the outermost layer of stems and roots of woody plants.
2. The bark is found on shrubs, woody vines, and trees.
3. The bark is produced by tissue outside of the vascular cambium.
4. It is made up of outer and inner bark that covers the wood.
5. The bark is also called rhytidome.

Option D:

1. In woody plants, the cork cambium is the outermost lateral meristem.
2. Periderm forms near the surface of roots and stems.
3. It contains phelloderm, phellogen, and phellem, which collectively form the tree's bark.
4. It's a sort of secondary growth that can be found in plants.

Final answer: Duramen is heartwood.