Question

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Heartwood is darker than sap wood. Reason (R): The cells of heartwood are impregnated with various resins, gums and tannins. In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

Remember that heartwood's darker appearance is due to the presence of various organic compounds within its cells.

Answer 1

The Correct Option is A

Step 1: Concept
Wood anatomy and properties

Step 2: Meaning
Understanding the differences between heartwood and sap wood, including their appearance and composition.

Step 3: Analysis
Heartwood typically appears darker due to its chemical content. The cells in heartwood are often filled with compounds like resins, gums, and tannins which contribute to this darkening process. These compounds also make it less prone to decay compared to sap wood, which is primarily composed of living tissues that can absorb water and nutrients from the soil.

Step 4: Conclusion
Both statements (A) and (R) are correct. The reason (R) accurately explains why heartwood appears darker than sap wood, as these impregnated cells result in a darker coloration. Final Answer: (A)