Question

The outer region of secondary wood is lighter in colour, known as

• A. Autumn wood
• B. Alburnum
• C. Sap wood
• D. Both B and C

Answer 1

Answer: (D)

Both B and C

An active wood conducts and stores water and food substance are called as sap wood or alburnum. It has living parenchyma cells which store and translocate food. Sap wood is soft and light in color. Sapwood (or alburnum) is the younger, outermost wood. In the growing tree, it is living wood and its principal functions are to conduct water from the roots to the leaves and to store up and give back according to the season the reserves prepared in the leaves. Late wood is called as autumn wood which is formed during winter season. It is formed after the early wood.

Thus, the correct answer is option D.