Question

question 13 (1 point) 01 10 mc when plants wilt, the soft stems and leaves begin to droop. what is going on inside the plants that causes plants to droop like this?
a the cell membranes begin to come apart when there is insufficient water around the cells.
b the cytoplasm of the cells becomes more concentrated, which slowly poisons the cells.
c the cell walls become brittle as they dry out, and some of them collapse.
d the central vacuoles in the cells lose water and can no longer help support the cells.

Explanation:

When plants wilt due to lack of water, the central vacuoles in the cells lose water. The central vacuole provides turgor pressure which helps support plant cells. Without sufficient water in the central vacuole, it can no longer support the cells properly, leading to wilting. Option a is about cell - membrane changes which is not the main cause of wilting. Option b about cytoplasm concentration is not the direct cause. Option c about cell - wall breaking is not typical in normal wilting.

Answer:

d. The central vacuoles in the cells lose water and can no longer help support the cells.