example of bacteria

Question: Example of chemosynthetic bacteria are _____________. 1. E. coli 2. sulphur bacteria 3. cyanobacteria 4. nitrobacter Answer: ..

These bacteria are spirally coiled like a corkscre..

They are also dangerous pesticides with ability to kill many useful bacteria besides killing the pests. They act as a source of pollution of agricultural land and ground water. Examples: Phorate, methyl parathi..

Organisms that synthesise, food with the help of the light energy of the sun, carbon dioxide and water by a process called photosynthesis are called photoautotrophic organisms. For example: Cyanobacteria (blue-green bacteria, prokaryotes), algae and all green plants. Organisms ..

The offsprings are genetically identical and therefore advantageous traits can be preserved. Only one parent is required which eliminates the need for special mechanisms such as pollination, etc. It is faster. For example, bacteria can multiply every 20 minutes. This helps t..

Most of the bacteria contain one to many locomotor structures called flagella. Cocci do not have flagella. Based on the number and mode of attachment of the flagella, bacteria can be distinguished into the following types: I . Atrichous : Bacteria without flagella. II..

Nitrogen Fixing Organisms - Some bacteria are known to fix the atmospheric nitrogen for their own biological activity. This natural phenomena is commercially utilized to increase the nutrient supply to crops. There are two types of nitrogen fixing bacteria. They are a) Symbiotic..

The bacteria generally exhibit a fairly constant shape and form. However, some of them are capable of changing their body shape and size in accordance with the environmental needs. Such bacteria are called pleomorphic..

Chemoautotrophic organisms synthesise food with the help of chemical energy. They do not require sunlight. Thus they include organisms which are found deep in the soil where sunlight does not penetrate such as nitrifying bacteria. These organisms use carbon dioxide and water as sources o..

They are used as insecticides, acaricides or nematicides to kill insects, mites and nematodes respectively. They can kill many aerobic and anaerobic bacteria in soil. They are easily escaped in underground water- when excess dosage is used. Examples: Carbofuran, aldicarb and ca..