I'm not entirely sure and this response is late but I'm pretty sure it's when the central vacuoles lose their water and can no longer support the cell. When the vacuole of a cell is full it pushes outward against the cell wall. When it has nothing in it, you can assume that because the vacuole is so big and is such a big component of this that this would be the answer.
<span>Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.</span>
The answer is 10 times higher in the cytoplasm than in the mitochondrial matrix
pH is usually calculated by the negative log of the H+ ions in a solution. The H+ ions are calculated in mols/Liter; Therefore a solute with a higher concentration of hydrogen ions has a lower pH. The difference between one pH to the next is 10 times fold the number of H+ ions.
[H+]= mol/L.
pH=−<span>log[H+</span>]
