In phagocytosis, which step does fusion of the phagosome, vesicle containing the bacteria, and the lysosome, vesicle containing the enzymes, occur?
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Primary lysosome fuses with the phagosome, creating a secondary lysosome. The particle is engulfed by an invagination of the cell membrane, forming a phagosome. Undigested remnants of the particle are expelled from the cell by exocytosis. Digestive enzymes break macromolecules in the particle down into monomers. Small nutrient molecules such as sugars and amino acids are transported into the cytoplasm by facilitated diffusion.
Sri K.
Place the steps of phagocytosis in order from first to last: Items in order First: Bacterium binds to the surface of phagocytic cell. 1: Phagocyte pseudopods extend and engulf the organism. 2: Invagination of phagocyte membrane traps the organism within a phagosome. 3: A lysosome fuses and deposits enzymes into the phagosome. 4: Enzymes cleave macromolecules and generate reactive oxygen, destroying the organism.
Adi S.
The process by which a cell engulfs a foreign particle is known as: a. endosymbiosis b. phagocytosis c. hydrolysis d. membrane synthesis
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