Q. Which of the following is/are correct for cells of cork?

1. Cells of cork are dead.
2. They also have a substance called suberin in their walls.

Select the correct answer from the codes given below:
Answer: Both 1 and 2
Notes: As plants grow older, the outer protective tissue undergoes certain changes. A strip of secondary meristem located in the cortex forms layers of cells which constitute the cork. Cells of cork are dead and compactly arranged without intercellular spaces. They also have a substance called suberin in their walls that makes them impervious to gases and water.

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.