Most organisms depend on the function of living cells. Examples of cells that function when they are dead are:
A) sieve tube cells and companion cells.
B) parenchyma, collenchyma, and sclerenchyma cells.
C) tracheids, vessel elements, and parenchyma cells.
D) tracheids, vessel elements, and sclerenchyma cells.

Question

Quizplus · Accepted Answer

Tracheids, vessel elements, and sclerenchyma cells are examples of cells that can function when they are dead. Tracheids and vessel elements are part of the xylem, which transports water and minerals in plants, and they are most efficient when their cell contents are absent, allowing for unimpeded flow. Sclerenchyma cells provide structural support through their thick, lignified cell walls, which remain functional after the cell dies.

Most Organisms Depend on the Function of Living Cells