Bacterial Morphology
The bacteria are prokaryotic organisms that are single-celled, and are found to exist as free-living and possess a microscopic size. The morphology is found to vary in the bacteria, where some of them are identified as individual organisms and the others are detected as colonies. The size and shape of the bacterial cell also represent its morphology.
Bacterial cell structure
Bacteria are single-celled, tiny creatures that may enter healthy tissues and grow rapidly. Bacteria are microscopic organisms that are tiny and unicellular. These are members of the prokaryote kingdom. They live in water, air, soil, and all-natural environments. They are used in industrial and therapeutic processes, and they support a wide range of plant and animal life. The first organism to appear on the planet. Bacteria-like creatures are the oldest known fossils. Bacteria can consume a wide range of organic and inorganic elements, and some may even survive in harsh conditions.
Gram Positive Bacteria | Gram Negative Bacteria |
It has a single layered cell wall | It has double layered cell wall |
Cell wall is smooth | Cell wall is wavy |
Cell wall is thick (20 to 80 nm) | Cell wall is thin (8 to 10 nm) |
It has a thick layer of peptidoglycan | It has a thin layer of Peptidoglycan |
Presence of Teichoic acids | Absence of Teichoic acids |
Bacteria of this type retain Crystal violet color when washed with Acetone or Alcohol. It appears as Purple color while visualizing through the Microscope in Gram Staining. | Bacteria of this type do not retain Crystal violet color when washed with Acetone or Alcohol. It appears as Pink color while visualizing through the Microscope in Gram Staining. |
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