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Phagocytes eat anything that seems foreign or harmful to the body (bacteria, virus, infected cells) in a process called phagocytosis.
Macrophages are actually a type of phagocyte. They consume large amounts (or clumps) of foreign invaders. They are pretty slow in performing phagocytosis.
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How do you think a phagocyte works to kill pathogens?
phagocytes kill the ingested pathogen with oxidants and nitric oxide
When antibodies initiate complement fixations the actual mechanism of pathogen cell death is cell lysis caused by a?
phagocyte
What is the difference between a carrier and a vector?
carrier harbour a pathogen but vector itself does not harbour the pathogen itself
What is the difference between a pathogen and a contagion?
A pathogen causes a disease while a contagion spreads a disease by direct or indirect contact.
What is the difference between antigens and pathogen's?
An antigen is a body's system for creating antibodies to fight infection. A pathogen is an infectious agent (or germ).
What is the difference between a disease and a pathogen?
Pathogen is the agent or the culprit that causes a disease while the disease is the end result of what a pathogen did. Example: HIV virus is the pathogen while AIDS is the disease state that can result from high HIV viral load.
What is the role of antibody?
Antibodies have the main job of flagging foreign bodies by connecting to the antigens on the pathogen surface, they do not destroy it however. They alert Macrophages (a form of phagocyte) to engulf the pathogen enclosing it into a pathogenic vacuole and lysosymes containing digestive enzymes fuse into the vacuole. This leads to the eventual immunity of a specific pathogen.
What is the difference between opsonization and neutralization?
Opsonization involves an antibody binding to a pathogen itself while neutralizing invovles an antibody binding to a toxin, AKA something the pathogen produces.
What is the difference between an antigen and pathogen?
an aepitope is the part of an antigen where antibodiy or lymphocyte receptor binds
What is opsonized bacteria?
an opsonized bacteria is a foreign pathogen in the human body in which a floating antigen is attached to the epitope (protein on the bacteria) so that a phagocyte can easily recognize the bacteria and engulf and destroy it.
Is a mast cell a lymphocyte or a phagocyte?
mast cell is not a lymphocyte mast cell is not a professional phagocyte, but an occasional phagocyte
What is Phagocytosis.?
Phagocytosis is the cellular process of engulfing solid particles by the cell membrane to form an internal phagosome, or "food vacuole." The phagosome is usually delivered to the lysosome, an organelle involved in the breakdown of cellular components, which fuses with the phagosome. ------------------------------------------- The process where a Phagocyte 'disposes' of a pathogen is called phagocytosis, when a bacteria attaches to a phagocyte, using ligands, The phagocyte forms Pseudopods (cytoplasmic arms) that envelope the pathogen, the Psuedopodia then fuse, creating a membrane, enclosing the pathogen forming a phagosome, this moves deeper within the cell to then form with a lysosome forming a phagolysosome (not really imaginitive naming i know, but scientists aren't known for their imaginative naming ). the lysosome contains enzymes (you guessed it, lysozyme) the lysozyme destroys the bacterial cell walls allowing hydrolytic enzymes to digest the rest of the pathogen.Sources : Collins AS Biology for AQA textbookPhagocytosis is a process by which certain living cells called phagocytes ingest other cells or particles
