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There is a battle for all living species to survive by conquering the complete harmful organism. The human body relies on itself to destroy pathogens or clear foreign particles through an organised system known as the lymphatic system. The lymphatic system, often known as the immune system, is made up of a group of cells or immune cells that live in all of the body's organs. The lymphatic system consists of lymphatic organs and lymphatic tissues that are engaged in the immune system.
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- Question 39 Which antibody rises in this graph. PRIMARY IMMUNE RESPONSE Antibody concentration First antigen 1 exposure 4. Time (weeks) O IgE IgG O IgA IgD O IgM Antibody concentration In plasmaQuestion 22 Which is described as the faster response to infection, when one is immune? O primary response secondary response O autoimmune response O tertiary responseQUESTION 4 Which of the following is required for activation of the adaptive immune system? O Activation of complement proteins O Inflammation O Memory cells O Presentation of antigen
- Question 21 Fill in the blanks. Innate immunity and adaptive immunity has memory; is specific is nonspecific; has no memory is specific; has memory O is nonspecific; has memoryQuestion 60 60. Macrophages have surface receptors for all of the following EXCEPT some antibodies complement O capsular polysaccharides O Fc of IgGQuestion 33 Bonus: Which cells of our immune system can kill our virus infected cells? O Natural Killer/NK cells and cytotoxic T lymphocytes neutrophils PMN's polymorphonuclear leukocytes O macrophages
- Question 62 62. Host Defenses. Which cell makes antibodies? O cytotoxic T lymphocytes O helper T lymphocytes O B lymphocytes/plasma cells CD4+ T cellsQuestion 39 Which of the following have immunological memory? O endothelial cells smooth muscle cells B cells activated plateletsQuestion 18 sponse. Interferons are produced by O all healthy cells to prevent viral infection. O virus infected cells. O bacterial infected cells. O all healthy cells to prevent bacterial infection.
- Question 10 of 14 Which of the following are true about MHC class I and MHC class II peptide loading? Select all that apply. MHC class I peptide loading occurs in four steps. Peptide loading of class I molecules generated from intracellular proteins occurs in the endoplasmic reticulum. ⒸMHC class II molecules are loaded before they are part of a vesicle capable of fusing with a phagolysosome. Peptide loading of class II molecules occurs later in the secretory pathway than that of MHC class I molecules.Question 9 of 14 Which of the following acts as a signal for the dendritic cell to begin cross-presentation? Presence of self-reactive CD4 T cells O Expression of endoplasmic reticulum (ER) chaperones calnexin and calreticulin O Phagocytosis and processing of extracellular antigens O Cytokine release following the activation of engaged CD4 T cells Question 10 of 14 Which of the following are true about MHC class I and MHC class II peptide loading? Select all that apply. MHC class I peptide loading occurs in four steps. Peptide loading of class I molecules generated from intracellular proteins occurs in the endoplasmic reticulum. MHC class Il molecules are loaded before they are part of a vesicle capable of fusing with a phagolysosome. Peptide loading of class Il molecules occurs later in the secretory pathway than that of MHC class I molecules.QUESTION 4 Which of the following is NOT a part of an inflammatory response? O Edema O Histamine release Increased permeability of capillaries O Vasoconstriction