Do plasma membranes have a membrane?
The plasma membrane is the membrane surrounding the cell, and other organelles. So I would say No.
A characteristic of plasma membranes that helps them fuse during vesicle formation and phagocytosis is the?
YES... All LIVING cells have plasma membranes. Not every cell contains cell wall, but plasma membrane is essential for the life of a cell. If the cell loses its membrane or the membrane is ruptured, the cell will lose its cellular form and all the contents of the cell would be wasted and it would not be called a cell after that.
Not only Euglena, all living cells have cell membranes. This cell membrane is called as plasma membrane, which is a cell membrane. Plant cells have an additional outer membrane, called as cell wall, made up of cellulose. Animal cells lack cell wall but have plasma membranes. They also both have a Nucleus, which is the centre of a cell and controls all the cells activities.
The plasma membrane is the most thoroughly studied of all cell membranes, and it is largely through investigations of the plasma membrane that our current concepts of membrane structure have evolved. Theplasma membranes of mammalian red blood cells (erythrocytes) have been particularly useful as a model for studies of membrane structure. Mammalian red blood cells do not contain nuclei or internal membranes, so they represent a source from which pure plasma membranes can be easily…
Cholesterol bridges plasma membranes and changes how rigid or fluid it is. The more Cholesterol the stiffer the membrane. Cholesterol is an important part of membranes. Many people think cholesterol is bad because too much cholesterol in your diet can lead to health problems but you obviously need small quantities to make healthy membranes.