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what s amoeba
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what s amoeba
Amoeba
Amoeba is a single-celled organism that belongs to the phylum protozoa. It is a microscopic organism that can be found in freshwater, saltwater, and soil. It has a simple structure and is considered to be one of the simplest organisms in the animal kingdom.
Structure
- Amoeba is a unicellular organism with no definite shape.
- It has an outer membrane called the cell membrane that controls the movement of substances in and out of the cell.
- It has a nucleus that contains the genetic material of the cell.
- The cytoplasm is a gel-like substance that fills the cell and contains various organelles.
Movement
- Amoeba moves by using pseudopodia, which are extensions of the cell membrane that allow the organism to move and capture food.
- The pseudopodia can be extended or retracted, allowing the amoeba to change its shape and move in any direction.
- Amoeba can move at a speed of up to 0.02 mm per second.
Feeding
- Amoeba is a heterotrophic organism, which means it feeds on other organisms.
- It captures food by extending its pseudopodia around the prey and engulfing it.
- Once the prey is inside the cell, it is digested by enzymes in the cytoplasm.
- The waste material is eliminated from the cell through a process called exocytosis.
Reproduction
- Amoeba reproduces asexually by a process called binary fission.
- The nucleus of the cell divides into two, and the cytoplasm is divided, resulting in two identical daughter cells.
- Under certain conditions, amoeba can also reproduce sexually by a process called conjugation.
- In conjugation, two amoebas exchange genetic material, resulting in new genetic variations.
Importance
- Amoeba plays an important role in the food chain as a food source for other organisms.
- They are also used as model organisms in scientific research to study cell biology and genetics.
- Some species of amoeba can cause diseases in humans, such as amoebic dysentery.
- Amoeba can also be used in bioremediation to remove pollutants from the environment.
In conclusion, amoeba is a simple yet fascinating organism that has contributed immensely to scientific research and the environment. Its unique structure, movement, feeding, reproduction, and importance make it an interesting subject of study.
Community Answer
what s amoeba
A single-celled animal which catches food and moves about by extending fingures-like projections of protoplasm
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what s amoeba
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what s amoeba for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about what s amoeba covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for what s amoeba.
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