Name: 102. Which of the following is not causod by complement a. Vasodilation pr
ID: 3505985 • Letter: N
Question
Name: 102. Which of the following is not causod by complement a. Vasodilation protein activity? b. Agglutination of antigens c. Cytolysis d. Al of the above are caused by complement protein activity 103. Which substance can destroy pathogens by chemically hydrolyzing them? a. Hydrochloric acid b. Mucus c. Enzymes d. Sebum 104. When an antigen attaches to a naïve B cell, it becomes a(m) cell. a. b. c. d. memory plasma effector B All of the above are correct. 105. Which is the best explanation of how a white blood cell ingests and destroys a microorganism? a. The white blood cell engulfs the microorganism and then lysosomal enzymes destroy it The white blood cell allows the microorganism to be absorbed by osmosis and then lysosomal enzymes destroy it. The white blood cell engulfs the microorganisms and chemotaxis destroys it. The white blood cell allows the microorganism to be absorbed by osmosis and then diapedesis destroys it b. c. d. Which is the best explanation of how complement-a group of about 20 inactive enzymes in the plasma and on cell surfaces-is activated and produces cytolysis? a. Complement is "turned on" by the presence of bacteria. b. Complement is activated by antibodies to "drill a hole" into foreign cells, thus 106. causing cytolysis c. Complement causes vasoconstriction and inhibits phagocytosis. d. Both A and B are correct. Systemic lupus erythematosus is an example of a(n): a. B cell-mediated condition. b. T cell-mediated condition. c. autoimmune condition that is caused by self-antigens being attacked. d. isoimmune condition that is caused by self-antigens being attacked. 107.Explanation / Answer
Answer 102. Option d
Complement protein system is made up of approximately 23 proteins, that act in a cascade manner in the blood to destroy the antigens.
Answer 103. Enzymes
Enzymes actually remove the stearic hindrance due to the removal odlf proteins in the antigens, so that antibodies should have better hold on the antigens.
Answer 104. Option d
These plasma, memory or effector B cells stores the antibodies for the future use, so that if same antigen find entry into the body then fast immunological response should be given.
Answer 105. Option c
The WBC engulfs the antigen by phagocytosis and later chemicals are released to destroy antigen. Antibodies are chemicals only released by the plasma cells.
Answer 106. Option d.
Complement system includes the inactive proteins in the blood that get activated by the entry of antigens into the body. They bring 3 actions, namely-phagocytosis, inflammation and mbrane attack.
Answer 107. Option c
It is an auto immune disorder in which the body attack its own cells.
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