Question

Which of the following statements are correct about heartwood?

(i) It does not help in water conduction.
(ii) It is also called alburnum.
(iii) It is light in colour and is very soft.
(iv) It has tracheary elements which are filled with tannins, resins, etc.

• A. (ii) and (iv)
• B. (i), (ii) and (iii)
• C. (ii), (iii) and (iv)
• D. (i) and (iv)

Answer 1

The correct option is D (i) and (iv)

Heartwood is non -functional as it does not conduct water and minerals. It may have ingrowths of tylosis, deposition of resins, tannins and other secondary metabolites of the plant. It is hard and is also called duramen.

So, the correct answer is '(i) and (iv)'