Rotation is the act of raising the nose of an aircraft (by pulling back slightly on the control yoke or stick) during the take-off roll, so that it leaves the runway. Rotation allows for a precise, positive departure from the runway.
Crenation is the loss of water from an animal cell due to osmosis. Lysis is the rupture of the cell wall due to too much water moving into an animal cell due to osmosis. Both â¦crenation and lysis have drastic effects on the animal cell.
This causes water to flow from inside the cell into the extracellular space via osmosis. As water leaves the cell, it shrinks and develops the notched appearance characteristic of crenation. In addition to hypertonicity, red blood cells may have a crenated appearance as the result of certain diseases.