four categories of antibody effector functions. One of the several means of protection of the body against pathogens is the activation of B cells and their generation of antibodies. These antibodies can be involved in four main functions: neutralization‚ opsonization‚ complement fixation and mediation of cytotoxicity. Neutralizing antibodies are the ones that block pathogens from gaining access to the cell by binding to receptors that the pathogen uses for this purpose. In other words‚ certain viruses
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Jason Huang Antibody Variations AP Biology EO1 Explain how variations within a class of molecules allows for a greater diversity of functions. Focus on antibody variations. During an immune response‚ the white blood cells including T cells and B cells bind to the antigen. Antigens are chemicals released from invading pathogens or toxins. The binding of antigen to the antigen receptors of T cells or B cells help activate and secrete antibodies to bind to the antigen receptor protein on the
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London. When I was growing up‚ I had this burning desire of relocating to London because one of my role models had done it. At the time‚ I did not think of it as something that I would actually do and I did not have a very good reason for relocating other than following in the footsteps of my role model. As time went by‚ I began to realize that I had to have a very good reason for relocating‚ I wanted to get a better education‚ and it was then it dawned on me that I should always set goals for myself
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When you deserve each other “In vain have I struggled? It will not do. My feelings will not be repressed. You must allow me to tell you how ardently I admire and love you.” Hearing Mr. Darcy’s strong admiration‚ Elizabeth’s astonishment was beyond expression. In spite of her deeply-rooted dislike‚ she could not be insensible to the compliment of such a man’s affection. But why Elizabeth refused him so tough‚ with so little endeavor at civility? Was this refusal merely because Mr. Darcy’s disagreeable
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connected. All humans are related to the other in one way or another. There are many ways of how humans are connected to one another. All of us need other people in order to be well and thrive. We are connected to one another based on social networking to communicate through the web. In today’s society‚ social networking has become like an operating system where every experience can be social and user friendly. For most people‚ the web is a viable online process that is used every day of the week from
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hold guns and kill each other; they are forced to become child soldiers. I believe that child soldiers are one of the most inhuman things in the world. Children are forced to kill each other ‚ they are not given any rights and freedoms‚ and are taken away from their families. First of all children are innocent people‚ people how want to make the world a better place. However‚ it is the war lords and leaders of the group who change their views. Children are forced to kill each other. Their minds are
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know that even though I don’t agree with something they’ve done‚ I understand their reason for doing it‚ and we discuss other solutions. When it comes to little things‚ like a person’s haircut‚ or what they’re wearing‚ honesty again depends on the type of friendship. Some people ask for advice on their appearance because they want the truth. So I give it to them. But others ask because they are fishing for a compliment. I’m not a fake person so I won’t lie‚ but I won’t tell them the truth either
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This theory shows how employees react to the forced ranking method. People fill that the ranking method violates employees’ rights . 3. I think the best method would be to set goals‚ based on position expectations. The best way would be to give each employee action plans based on their position. 1. By implementing a forced ranking procedure‚ organizations guarantee that managers will differentiate talent. While conventional performance appraisal systems may allow managers to inflate ratings and
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bombing of North Vietnam Dien Bien Phu- When this fell to Vietnamese forces in 1959‚ the french began to leave Vietnam Domino Theory- This was based on the idea that countries on the brink of communism were waiting to fall to communism one after the other Ho Chi Minh Trail- This allowed Communists in North Vietnam to supply military arms to the government opposition group in South Vietnam Every year in the U.S.‚ an average of more than 100‚000 people are shot‚ according to The Brady Campaign To
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Two Families at Each Other’s Throats By Shalini Krishan Yesterday afternoon‚ in the Vernon streets‚ Capulet and Montague rose to each other’s throats and bought the duel to the streets. In the duel‚ there were two deaths and one was banished. Mercutio‚ who was a kinsman to Prince Escalus‚ was slain by Tybalt and Tybalt‚ cousin to Juliet of the Capulet family‚ was murdered by Romeo who was banished by Prince Escalus. Mercutio was killed yesterday afternoon by Tybalt when they engaged in
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