state the steps involved in the nutrition of amoeba and compare the same with paramecium
Answers
Answer:
Explanation:
Amoeba possesses a holozoic mode of nutrition and process is known as “phagocytosis”. The basic processes involved in the nutrition include:
Ingestion: Amoeba takes in its food through this process. Initially, it pushes out its pseudopodia so that it can encircle the food. After this, it engulfs the food, thus forming a bag-like structure called food vacuole. The process is known as “phagocytosis”.
Digestion: This step follows ingestion. The food vacuoles are rich in various digestive enzymes. These enzymes break down large insoluble foodstuffs consequently yielding simple soluble molecules.
Absorption: It is the process of absorption of the digested food material into the cytoplasm leaving behind the undigested food material. Sometimes the amoeba absorbs large quantities of food. What happens to the excess food? Well, the excess food gets stored in the form of glycogen as well as lipids.
Assimilation: This is the “utilization” process. During this process, the absorbed food is utilized for energy production, growth, repair as well as for multiplication.
Egestion: Finally, the cell membrane gets ruptured so that the undigested food material is thrown out of the body.
INGESTION ⇒ DIGESTION ⇒ ABSORPTION ⇒ ASSIMILATION ⇒ EGESTION
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Amoeba possesses a holozoic mode of nutrition and process is known as “phagocytosis”. The basic processes involved in the nutrition include:
Ingestion: Amoeba takes in its food through this process. Initially, it pushes out its pseudopodia so that it can encircle the food. After this, it engulfs the food, thus forming a bag-like structure called food vacuole. The process is known as “phagocytosis”.
Digestion: This step follows ingestion. The food vacuoles are rich in various digestive enzymes. These enzymes break down large insoluble foodstuffs consequently yielding simple soluble molecules.
Absorption: It is the process of absorption of the digested food material into the cytoplasm leaving behind the undigested food material. Sometimes the amoeba absorbs large quantities of food. What happens to the excess food? Well, the excess food gets stored in the form of glycogen as well as lipids.
Assimilation: This is the “utilization” process. During this process, the absorbed food is utilized for energy production, growth, repair as well as for multiplication.
Egestion: Finally, the cell membrane gets ruptured so that the undigested food material is thrown out of the body.
INGESTION ⇒ DIGESTION ⇒ ABSORPTION ⇒ ASSIMILATION ⇒ EGESTION
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