Question

Which one of the following is incorrect regarding cork?
a. Cork has thickening of lignin
b. Cork is formed as a result of secondary growth in plants
c. Cork is thick and impervious to gases
d. Cork is made of dead cells​

Answer 1

The statement which is incorrect regarding cork is a. Cork has thickening of lignin.

• The outer bark on a tree is known as cork.
• A cork is made up of dead cells and results from the formation of secondary growth  in plants.
• The cell walls in a cork are made up of a waxy substance which is known as suberin.
• Suberin cell wall is the reason that cork cells are impervious to gases as well as water.
• In this way, cork cells provide water loss from stems.

Answer 2

Explanation:

a. Cork has thickening of lignin