One or the other germ acts as a catalyst or helper in the chemical changes that are constantly taking place in nature. Depending on the nature of the work, germs are further divided into two categories, e.g.
(i) Producer
(ii) Decomposer.
(i) Producer: An example of this is that algae is a class of germs. Algae prepare food in the process of photosynthesis with the help of simple inorganic substances like CO2, H2O, NH3 etc. At that time solar energy is converted into chemical energy and stored in food. Algi is the first creator of the food chain.
(ii) Decomposer: It is a bactericidal bacterium and most of the bacteria. They break down complex large compounds of food into simple smaller compounds and extract the energy needed for biological processes. The following is a brief overview of germs
Bacteria (bacteria (pl), bacterium (s)): Bacteria, like viruses, are very small organisms. They cannot be seen without a microscope. Because they are so small in cell size, they are called microorganisms.
Features:
1. Bacteria are microscopic organisms.
2. They are cellular, but can colonize or group many cells together.
They are pre-centric, meaning they have no atomic shell.
81 They may be parasitic and dead
These are usually divided into two-part process.
Bacterial habitat It exists everywhere in soil, water, air, outside and inside the organism. Bacteria also live in human weapons. Bacteria are also more common in soil or water where there is more organic matter. The deeper you go into the soil, the lower the amount of organic matter in the soil and the lower the number of bacteria.
The following is a brief description of the classification
(a) Autotropic: These bacteria prepare their own food with the help of common inorganic substances. Galionella, a bacterium of the genus Galionella, is propagated in the presence of oxygen in mixtures prepared by NHCI, phosphate, mineral salts, CO and solid FS. There are some species of autotropic bacteria that carry a photosensitive substance called chlorophyll.
(b) Heterotropic: They cannot make their own food. (I) Saprophyte: It collects food from dead plants and animals. Without them, corpses
They contain life. There are two classes of these bacteria - saprophyte and parasite bacteria.
The surface will be covered.
(ii) Parasite: It lives in living animals and plants and collects food from there.
E. coli (a) Commensal: It is a parasite. The food they collect from the host does not harm the host but benefits them. E. coli is a class of parasitic bacteria. They live in the intestines of humans and animals and help the organism to turn complex food compounds into simple compounds. In fact e. And if some other E. coli bacteria do not have colon, it will not be possible for humans or animals to digest their food and survive. It cannot live long outside the body of the animal.
(b) Pathogen: It is also a parasite. However, there is a difference with the Commons. When a germ picks up food from its host, the host loses it; They eat bananas. There are many incurable diseases that are caused by bacterial attacks, such as tuberculosis, meningitis, etc. Tuberculosis-causing pathogens cause ulcers by ingesting lung tissue. Some pathogens also secrete toxins. Whooping cough, typhoid, diphtheria etc. are some of the poisons.
There are two types of bacteria in the habitat environment, namely:
(i) Gaseous
(ii) Anaerobic.
Below is an overview of aerobic and anaerobic bacteria:
Aerobic bacteria live in oxygen rich environments and aerobic bacteria survive in oxygen deprived environments. When a substance breaks down in the decomposition of gaseous bacteria, O2 acts as an electron receptor there and in the decomposition of inanimate bacteria CO2, NO, SO, 2 - etc. act as molecule / ion electron receptors.
Gaseous: O2 + 4H * + c = 2H2O Gaseous: NO3 + 2H + 20 NO 2 + H2O
SO2 + 10H + 8e HS + 4H2O
In addition to aerobic and anaerobic bacteria, there is a class of bacteria that can survive in both oxygen-rich and oxygen-deprived environments. Of the thousands of species of bacteria that exist in nature, most bacteria range in size from 0.5 - 3.0mu * m * (mu = 10 ^ - 6), but can range from a minimum of 0.3 zoom to a maximum of 100 um. Bacteria can usually be separated by a 0.45 jam filter.
Disease occurs. Characteristics:
1. They are green.
2. They are incapable of photosynthesis.
3. They do not have a transport system.
4. They are mainly aquatic.
5. Their sexual reproduction is bisexual.
6. They have no chlorophyll in their body.
7. They live as mortals.
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