Question

Which of the following is made up of dead cells?

• A. Xylem parenchyma
• B. Collenchyma
• C. Phellem
• D. Phloem

Answer 1

The correct option is C

Phellem

The correct option is C.

Explanation for Correct option:

1. Phellem is made up of dead cells.
2. It is suberised cork cells in which cork cambium or phellogen cut towards the outside.
3. Xylem parenchyma, collenchyma, and phloem are all made up of living cells.

Explanation of the incorrect option:

Option A:

Xylem parenchyma cells can store water, which is essential for the proper functioning of a plant.

Option B:

Collenchyma is a supporting tissue composed of more or less elongated living cells with unevenly thickened, nonlignified primary walls.

Option D:

Phloem is the food conducting element that means transportation of food.

Final answer:

The one which is made up of dead cells is Phellem.