Sunday, September 13, 2020

STRUCTURE & LIFE CYCLE OF AMOEBA

Definition of Amoeba

Amoeba is a lineage in biological classification and members of this lineage are also often called amoeba. There is a very simple type of protozoa whose most species are found in rivers, ponds, freshwater lakes, pools, water pits etc. Some related species are important parasites and pathogens.

Structure of Amoeba

The living amoeba is a very microscopic animal, although members of some of its species are 1/2 mm long. Can be of greater diameter. In structure, it resembles a small pile of gyrus (protoplasm), whose shape changes gradually gradually. The cytoplasm is protected from the outer covering of the very microscopic Koshala (Plasmalema). Two clear levels of kosharas can be identified by themselves - the clean, granular, glassy, ​​thick outer juice on the outside and the more liquid, gray, particulate portion inside it called the inner juice. The internal juice also has a large nucleus. The entire internal juice is filled with many small large food grains and one or two shrinking juices. Each food contains food and some liquids. Digestion takes place within them. Shatukhirasadhani contains only fluid. It is formed in the form of a small granule, but gradually it grows and eventually bursts and its liquid comes out.

Life Cycle of Amoeba

The process of amoeba is very interesting. There are some temporary amplifications of its body which are called Kootapada (fake feet). In the direction of practice, a pseudopod comes out, then in the same pseudopod, gradually all the kosharas flow. Only then, or together, does the new codpile begin to form. According to Hymen, Mast, etc., the kootapadas are formed due to some physical changes in the kosharas. In the rear part of the body, kosharas change from thick state (gel position) to liquid position and vice versa from liquid position to gel position in the next part. Due to being too thick, the gel formed further pulls the cytoplasm towards itself.Majo

Major parts of amoeba - 

1. contractive vacuole

2. food vacuole

3. pseudopod

4. Endoplasm

5. Clean external juice (Ectoplasm)

6. nucleus

The amoeba accepts its food like living beings. He devours all types of organic particles - living or non-living. He encapsulates these cuisines with many crypts; Then, when the moths are mixed with each other, the food particles reach the kosharas in the form of food grains with some liquid. In koshanas, there is secretion of amal, first alkaline digestive products, in which the proteins are definitely digested. According to some people, digestion of starch and fat is also done in some castes. It happens After digestion the digested food gets exploited and the indigestible part reaches the back of the body respectively between the movements and then it is abandoned. There is no special part to abandon. Respiratory and excretion activities occur in almost all places on the external floor of the amoeba. Special organs are not required for them because the body is very subtle and surrounded by water.The cascading pressure (osmotic pressure) is higher than the water outside, and the water accumulates in the kosharas crossing the Koshala. As a result, the body can swell and burst at the end. Therefore, this excess of water is collected in one or two small grains. This marrow grows slowly and bursts to a limit and all the water is released. That is why it is called demure seed. In this way, amoeba is controlled by curling.The amoeba becomes spherical before reproduction, its nucleus is divided into two nuclei, and then the genus is also pulled from the middle. Thus two small amoebas are formed by division from one amoeba. The entire process is completed in less than an hour.

        Before the unfavorable season, the amoeba abandons the cereals and demure granules and a hard cyst around it is prepared, within which it is safe in summer or winter. The amoeba inside the cyst remains alive even when the water is dry. Yes, meanwhile, all his life processes remain almost nil. This condition is often called Pranikram. The amoeba inside the cyst does not die even after boiling water is added. Often, the cysts and nucleus divide within the cyst during favorable season, and when the cyst is destroyed, two or four small amoebae emerge from it.

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