Question

What is true of heartwood?

• A. It does not help in water transport
• B. It is resistant to bacterial infections
• C. It is made up of degenerated cells
• D. All the above

Answer 1

The correct option is D All the above

The central or inner dark coloured non-functional wood or secondary xylem formed during the secondary growth of dicotyledonous stem is called Heartwood. It is made up of degenerated cells, does not perform conduction of water, shows resistant to bacterial infections.

So, the correct option is ‘All of the above’.