Describe the possible functions of proteins in the bacterial plasma membrane.
Structure and Composition of Cell Membrane
Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.
Cell Membrane
The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment.
Prokaryotes vs Eukaryotes
The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.
Describe the possible functions of proteins in the bacterial plasma membrane.
Bacteria
- are the single-celled microscopic structure that is prokaryotic in nature.
- It lacks a well-defined nucleus and cell organelles.
- It consists of a cell envelope that consists of a cell wall and cell membrane or plasma membrane.
- The cell wall is made up of peptidoglycans and teichoic acid while the cell membrane prevents leakage of cytoplasmic material out of the bacterial cell.
- On the basis of the cell wall composition bacteria are of two types: Gram-positive and Gram-negative bacteria.
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