Which of the following complement proteins is NOT involved in the FINAL structure of the membrane attack complex (MAC)? C4 C5b C8 C9 C6
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- The MAC is a structure formed on the surface of pathogen cell membranes as a result of the activation of the complement system, leading to cell lysis and death. Show more…
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Many components of complement are enzymes or are part of an enzyme complex. Which of the following is NOT an enzyme nor part of an enzyme complex? 1. C3b 2. C2a 3. C4b 4. C5b
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The complement cascade (select the MOST CORRECT statement) Complement protein C3a stimulates mast cells to release histamine, a pro-inflammatory molecule. Macrophages have intracellular receptors that bind to the C3b protein. Complement protein C1 is able to bind to antibodies that are free in solution in plasma. Both a) and b) are correct and c) is incorrect a), b) and c) are all correct
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