192 EXERCISE 1 for digestion. What is the mechanism by which food vacuoles are f
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192 EXERCISE 1 for digestion. What is the mechanism by which food vacuoles are formed? ar araralas 0 oplas ma What is the relationship of lysosomes to the food vacuoles? iaboaipl l ction in Amoeba is by binary fission, in which the cytoplasm and nucleus divide to form two genetically identical daughter amoebas. Thou conddin acLaand enznses geneticaly ho break douon wrients latin isable 2. Other Sarcodina Hovw are the products of digestion made available Radiolarians (Fig 16 8A) are amoebas that have to the cel? s he hoo mombrane skeletons made of silica secreted by the cytoplasm d Vacuole mas boun & sacs merge, Hue contents of lee B. Foraminiteran she Nuclaus A Radiolarlan shels 0 Cyst Vegetative cell C. Entamoeba histolyticaExplanation / Answer
mechanism of food vacuole formation:
A food-vacuole is a membrane enclosed cell's vacuole with digestive function. Amoeba is a unicellular organism, which doesn't has mouth for ingestion of the food. It ingests the food by encircling the food by forming pseudopodia.
The food vacuoles are formed when the food is pushed towards the cell where the membrane bends inward. As the food pushes against the membrane, the membrane stretches inward until the food particle is completely inside the cell. Then the membrane is completely pinches off into the cell and forms the food vacuole.
This type of formation of food vacuole by the formation of pseudopodia is called phagocytosis.
relationship of lysosomes with food vacuoles:
Lysosomes contain acid and other enzyme to breakdown various nutrients into their usable forms. when food vacuole is formed in a unicellular organism like amoeba, the membrane of the food vacuole gets merged with the membrane of the lysosome and the contents of the lysosomes are released into the food vacuole. Thus the food in the food vacuole gets digested.
The process of making the digested food products be available to the cell:
The food vacuole will move inside the cell due to cytoplasmic streaming. The digested food products are made available to the entire cytoplasm during this movement by diffusion process.
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