When plants wilt, their soft stems and leaves begin to droop. what is going on inside the plants' cells that causes plants to droop like this? ` the cell membranes begin to come apart when there is insufficient water around the cells. `the cytoplasm of the cells becomes more concentrated, which slowly poisons the cells. ` the cell walls become brittle as they dry out, and some of them collapse. ` the central vacuoles in the cells lose water and can no longer support the cells.

The correct answer is that the central vacuoles in the cells lose water and can no longer help support the cells.

Explanation:

The plants become wilt, which signifies that the water present in the central vacuoles gets lost. The prime supportive constituent in the majority of the functions done by the plants is water. Thus, if the water gets lost, various metabolic activities will get arrested.  

It is known that when the vacuole of a cell is filled with water it pushes outward against the walls of the cell, and when it is empty, that is, when the water is lost entirely the drooping of the plants takes place.  

thinking it would be physical characteristics

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.