Alburnum is also called

Options

A. heartwood
B. soft wood
C. sapwood
D. hard wood

Answer

### Step-by-Step Solution:

1. **Understanding Alburnum**: Alburnum is a term used in botany to refer to a specific type of wood found in trees.

2. **Identifying the Correct Term**: Alburnum is commonly known as "sapwood." This is the outer layer of wood in a tree, which is responsible for the transport of water and nutrients.

3. **Distinguishing from Other Types of Wood**: It is important to differentiate alburnum (sapwood) from other types of wood such as hardwood (duramen) and softwood. While hardwood refers to the inner, non-living part of the tree, sapwood is the living outer layer.

4. **Characteristics of Alburnum (Sapwood)**:
- **Location**: Alburnum is found on the outer part of the tree trunk.
- **Color**: It is typically lighter in color compared to heartwood.
- **Cell Composition**: Alburnum consists of living cells, which are involved in the transport of nutrients.

5. **Conclusion**: Therefore, alburnum is also called sapwood, which is the outer layer of wood in a tree.