rift valley. 1  A long, narrow valley lying between two normal geologic faults. Rift valleys usually form where the Earth's lithosphere has become thin through extension associated with plate-tectonic processes. 2  The deep undersea valley located along the center of the mid-ocean ridge.
Vacuoles and lysosomes have similar functions. Vacuoles in plant cells are in some respects the equivalent of lysosomes in animal cells. The environment inside a vacuole is slightly acid (pH about 5.0) whilst for the rest of the cytosol it is slightly alkaline (about pH 7.2).acuoles and lysosomes have similar functions. Vacuoles in plant cells are in some respects the equivalent of lysosomes in animal cells. The environment inside a vacuole is slightly acid (pH about 5.0) whilst for the rest of the cytosol it is slightly alkaline (about pH 7.2).
Vacuoles can be found in plant cells, although the plant cell only has one vacuole. A vacuole stores water, food, and enzymes, and collects unwanted waste. A vacuole is a sac â¦ used to store water for the cell.Plant cells have a large vacuole. Animal cells have small vacuoles, if they have one at all. A vacuole maintains the acidic internal pH and also the turgor and hydrostatic pressure in the cells.acuoles are water-filled storage spaces found in cells. They are found in both animal and plant cells (but they are more common in plant cells they are also bigger in plant c â¦ ells). Vacuoles store food, collect waste products, and can help with cell shape and buoyancy.