Question

Which of the following are true of phagocytosis

Group of answer choices

dendritic cells and macrophages are examples of phagocytes

all of these are true

opsonization increases phagocytosis

some bacterial pathogens can evade phagocytosis using a capsule

some bacterial pathogens can escape from the phagolysosome or prevent it from forming

Answer 1

Answer =

True of phagocytosis =

all of these are true

dendritic cells and macrophages are examples of phagocytes

Explanation - phagocytes are cells that protect the body by ingesting harmful foreign particles , bacteria and dead or dying cells.

the phagocytes include many types of white blood cells such as neutrophils, monocytes , macrophages and dendritic cells.

opsonization increases phagocytosis = opsonization is the process in which certain antibodies in the blood known as opsonins bind to the surface of an invading microorganisms, which renders it more susceptible to phagocytosis.

Some bacterial pathogens can evade phagocytosis using a capsule = The capsule is a virulence factor because it enhances the ability of bacteria to cause disease for example prevents phagocytosis.

The capsule can protect cells from engulfment by eukaryotic cells, such as macrophages.

Some bacterial pathogens can escape from the phagolysosome or prevent it from forming = some bacteria can escape from phagolysosome into cytoplasm.