Medicine and Disease Study Questions 1-10 1. Describe the role of the macrophage in the immune response. They are known as the vulture cells randomly engulf and destroy bacteria‚ cell debris or foreign matter. 2. State the origin and purpose of lymphocytes. The immune cells‚ or lymphocytes as well as macrophages provide the specific mechanism for the identification and removal of foreign material. Natural killer cells are lymphocytes distinct from the T and B lymphocytes. They destroy
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1. Detecting ‘self’ and ‘non self’ molecules: the role of antigens and the membrane receptors. Class I MHC molecules | Class II MHC molecules | * Are found on almost all nucleated cells of the body (so are not on red blood cells) * Body Cells that have become infected or become cancerous can display antigens by using their Class I MHC molecules on their cell surface * These antigens that get displayed were made inside these cells * Cytotoxic T cells will recognise antigens displayed
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Unit B1‚ B1.1 Mark scheme Keeping healthy 1. (i) or (ii) the loop is sterilised accept to kill anything on the loop to kill any bacteria on it; do not credit to clean the loop if hot it would kill bacteria picked up (from culture); accept ‘microorganisms’ or ‘microbes’ accept entry of contaminated air but reject entry of air unqualified to prevent entry (from the air) of unwanted bacteria or bacterial spores or fungal spores; accept so can’t breath on it; accept ‘microorganisms’ or ‘microbes’
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their patients. It is then their job to analyze this information. They then have to put all of the pieces of information that they find together to create a diagnosis for their patient. Immunology can be a very dangerous field for a person with no antibodies. Immunologists often times deal with microbiological cultures and possibly biohazard cultures as well. Very often times are an immunologist associated with a Allergist because they deal with the reaction and rejection of the body to foreign micro
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immunity/adaptive immunity and discuss their role in host defenses 3. Describe the characteristics of antigens 4. Describe the differences in the way T cells and B cells recognize antigens 5. Describe the structure of the five classes of antibody molecules 6. Compare the role of the primary and secondary lymphoid tissue. 7. Describe the process of Phagocytosis 8. Define the term “Titer”. 9. Describe the principles of agglutination and precipitation. 10. Perform the following
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Devara Putra Aryasta Frazier-Engl101U RJ#7 Brendan Buhler’s “The Teeming Metropolis of You” & Virginia Hughes’s‚ “Our Body the Ecosystem” 03 / 10 / 2014 Brendan Buhler’s “The Teeming Metropolis of You” & Virginia Hughes’s‚ “Our Body the Ecosystem” Summary: In this article‚ “The Teeming Metropolis of You” by Brendan Buhler‚ the author writes about how our small intestine functions‚ and the author explains this by saying that our small intestine is not a temple‚ but instead a complex piece of
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tissues. This network aids in the removal of waste and unwanted products from the body. The lymphatic system’s most important function is to transport white blood cells that fight infection called lymph though the body. These white blood cells contain antibodies which are built to detect‚ destroy and build immunity towards pathogens and infections that enter the body. The lymphatic system consists of lymphatic vessels‚ lymphatic organs and lymph. Lymphatic Vessels Lymphatic vessels are tubes with thick
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The lysosomes (powerful enzyme containing vesicles) inside the phagocyte fuse with and release enzymes into the vacuole. The enzymes breakdown the foreign object and the products are either absorbed into the cell or released. Lymphocytes produce antibodies in
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Antibodies‚ are better known as immunoglobulins‚ they are a Y-shaped proteins that are formed by the immune system to stop invaders from hurting the body (What Are Antibodies? - Definition‚ Function & Types‚ n.d.). The adaptive immune system is efficient at birth‚ but because it is so new to everything it has not gained the knowledge or
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rare is called anaphylactic shock. 9. What is it called when the body produces antibodies and sensitized T cells that attack and damage its own tissues? An autoimmune disorder is when the body in essence attacks itself. 10. Tissue grafts taken from unrelated persons are called allografts. 11. Small proteins that diffuse to nearby cells and bind to their membrane receptors are called interferons. 12. Antibodies are also referred to as immunoglobulins or IGS and constitute the gamma globulin
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