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.
What is the purpose of the Ames test? How are his− bacteria used in this
test?
Ames test is also known as Bacterial reverse mutation test. It is a method to test a chemical whether it is a mutagen or not. It is a biological assay that uses bacteria Salmonella typhimurium histidine (his). It is used to determine the mutagenic potential of any chemical compound. A positive result may also link the mutagen to carcinogen as cancer is caused because of mutations in DNA. It is a quick and convenient method to determine the carcinogenic potential of a compound in comparison to tests conducted on model organisms. Its main principle is reverse mutation or back mutation that’s why it is also known as bacterial reverse mutation test.
Step by step
Solved in 2 steps
