Why is pseudopodia?what is encystment?how encystment helps in perennation?
Answers
Answer:
Q:1
The functions of pseudopodia include locomotion and ingestion: Pseudopodia are critical in sensing targets which can then be engulfed; the engulfing pseudopodia are called phagocytosis pseudopodia. A common example of this type of amoeboid cell is the macrophage. They are also essential to amoeboid-like locomotion.
Q:2
Encystment - a process which, among some of the lower forms of life, precedes reproduction by budding, fission, spore formation, etc.
Q:3
perennation is the ability of organisms, particularly plants, to survive from one germinating season to another, especially under unfavourable conditions such as drought or winter. It typically involves development of a perennating organ, which stores enough nutrients to sustain the organism during the unfavourable season, and develops into one or more new plants the following year. Common forms of perennating organs are storage organs (e.g. tubers, rhizomes and corm), and buds. Perennation is closely related with vegetative reproduction, as the organisms commonly use the same organs for both survival and reproduction.
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Answer:
1)A pseudopod or pseudopodium (plural: pseudopods or pseudopodia) is a temporary arm-like projection of a eukaryotic cell membrane that are developed in the direction of movement. Filled with cytoplasm, pseudopodia primarily consist of actin filaments and may also contain microtubules and intermediate filaments. Pseudopods are used for motility and ingestion. They are often found in amoebas.
2)Encystment.: a process which, among some of the lower forms of life, precedes reproduction by budding, fission, spore formation, etc
3)perennation is the ability of organisms, particularly plants, to survive from one germinating season to another, especially under unfavourable conditions such as drought or winter.Amoeba survives unfavourable times by forming a protective covering or cyst wall around it. This process is known as encystment. When conditions of life become favourable, the cyst wall breaks down and Amoeba emerges out to lead a normal life again. Thus, encystment serves for the protection and survival of Amoeba