Gram-staining
The basic dye crystal violet is used to first stain the bacteria. Gram’s iodine solution is then used to treat the bacterium. Then, Gram’s decolorizer, ethyl alcohol, and acetone mixture are added. Safranin, a counterstain that is actually a basic dye, is applied in the last. With this gram-staining method, we classify the bacteria into Gram Positive and Gram Negative bacteria.
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Prokaryotic Cells
Prokaryotic cells are single-celled organisms that lack a true nucleus and membrane-bound organelles. Their genetic material is present in a nucleoid region. They are normally smaller than eukaryotic cells, with a size range of 0.1 to 5 μm in diameter. Prokaryotic cells for example bacteria and archaea have a cell wall and fimbriae and pili can often be found on the surface of bacterial cells. They evolved before the eukaryotic cells and live in nearly all environments on Earth. They have the ability to adapt to diverse environments.
Table of Content
- Prokaryotic Cell Definition
- What is Prokaryotic Cell?
- Characteristics of Prokaryotic Cells
- Prokaryotic Cell Structure
- Prokaryotic Cell Diagram
- Components of Prokaryotic Cell
- Reproduction in Prokaryotes
- Prokaryotic Cells Examples
- Gram-staining