How does the antigen in an agglutination reaction differ from that in a precipitation reaction?

Video transcript

Hello, everyone. And welcome back. Let's take a look at the next problem. The phenomena in which antibodies react with epitomes of bacterial cells causing them to clump is called a precipitation. B agglutination C neutralization or D opsonization. This one is a little bit tricky because we have two kind of similar ones here. Um Choice A precipitation and B A glutton nation both involve kind of clumps or gathering together. But specifically the phenomena where antibodies cause bacterial cells to clump together. This choice B A glutton, this makes them easier to eliminate from the body because it results in fewer antigen particles or fewer pathogen particles for the body to cope with. So it just facilitates clearing of this pathogen from the body when we look at choice a precipitation. So again, kind of somewhat similar phenomenon in that we cause things to stick together. But in precipitation, you form these large insoluble complexes that actually precipitate out of solution. And this is most likely to happen when you have high concentrations of both antigen and antibodies. So the way to keep it clear is that again, we have in precipitation, we have that word letting us know that we have actual leaving of these complexes, they're coming out of solution as opposed to a gluten nation where they're just clumping together. So choice a precipitation, not quite right here. Choice. C neutralization is the process when by coding a pathogen. So like a bacteria virus, but with antibodies, the pathogen is prevented from infecting any cells or causing any further damage. So it's sort of physically inhibited by the binding of the antibodies from doing any harm. So this obviously helps the body as the pathogen is cleared from the system because you don't have further damage or further infection happening. But it's not the phenomenon we're looking for. So not our answer. And then finally choice D opsonization is the coating of a pathogen with antibodies, thereby sort of marking it for destruction by immune cells. And this process of opsonization also enhances recognition and uptake by Phao cytic cells. So in this case, the binding with the antibody doesn't have a physical effect like clumping together or preventing infection, but it does sort of target the cell and say, hey, here it is um enhancing and making the process quicker of having it engulfed by these fag acidic cells. But it's not the process we're looking for. So it's not our correct answer. So once again, the phenomenon phenomenon where antibodies react with epitomes of bacterial cells causing them to clump together. This choice be a gluten nation. See you on the next video