ram staining and acid fast staining differentiate ("sort into groups") bacteria. The basis for differentiation is that A. some cells can be decolorized in the procedure but others cannot. B. some bacteria can take up the primary stain in the procedure, but others cannot. C. all species of bacteria are one color, whereas eukaryotic cells are an alternate color.
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.
| A. |
some cells can be decolorized in the procedure but others cannot. |
|
| B. |
some bacteria can take up the primary stain in the procedure, but others cannot. |
|
| C. |
all species of bacteria are one color, whereas eukaryotic cells are an alternate color. |
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