Diagnostic questions quiz on immunity

Objectives Have an overview of different mechanisms which protect our bodies. Outcomes 3: Identify different components of our immune system. 5: Describe the role of different features in protecting us against infectious disease. 7: Evaluate how these parts work together to form a system. Key terms: infectious, disease, pathogen, primary, secondary.

On the diagram identify as many features as possible that protect us from infectious disease. Try to outline how. Outcomes 3: Identify different components of our immune system. 5: Describe the role of different features in protecting us against infectious disease. 7: Evaluate how these parts work together to form a system. Key terms: infectious, disease, pathogen, primary, secondary.

Outcomes 3: Identify different components of our immune system. 5: Describe the role of different features in protecting us against infectious disease. 7: Evaluate how these parts work together to form a system. Key terms: infectious, disease, pathogen, primary, secondary.

What is a pathogen? Examples? Outcomes 3: Identify different components of our immune system. 5: Describe the role of different features in protecting us against infectious disease. 7: Evaluate how these parts work together to form a system. Key terms: infectious, disease, pathogen, primary, secondary.

Antigen Antibody What’s the difference? Antibodies: Proteins produced in the blood that bind to the antigens on pathogens, rendering them harmless or causing their destruction. An antigen is a protein or polysaccharide the identifies a cell. An antigen that is foreign to the body triggers the body to create antibodies against it. An antigen is also present on human cells, and these antigens are referred as "self." Self antigens are ignored by the immune system

Objectives Have an overview of different mechanisms which protect our bodies. Outcomes 3: Identify different components of our immune system. 5: Describe the role of different features in protecting us against infectious disease. 7: Evaluate how these parts work together to form a system. Key terms: infectious, disease, pathogen, primary, secondary.

Draw a diagram and outline the role of the following: B lymphocyte T-helper cell Plasma cell Memory cell Natural killer cell Outcomes 3: Identify different components of our immune system. 5: Describe the role of different features in protecting us against infectious disease. 7: Evaluate how these parts work together to form a system. Key terms: infectious, disease, pathogen, primary, secondary. HL ONLY

Antibodies Attach to antigens and ‘tag’ the pathogen, making it more visible to other cells (killer T and phagocytes) = neutralisation Many antibodies-antigen complexes join together creating a ‘clump’ of easily recognisable pathogens = agglutination

Pregnancy tests rely on monoclonal antibodies which bind to a hormone (HCG) which is made in the early stages of pregnancy. Tiny amounts of the hormone are passed out of the body in the urine. This is what is picked up by the monoclonal antibodies in the pregnancy test.HCG Outcomes 3: Identify different components of our immune system. 5: Describe the role of different features in protecting us against infectious disease. 7: Evaluate how these parts work together to form a system. Key terms: infectious, disease, pathogen, primary, secondary.

Diagnosis of disease - monoclonal antibodies can be made which bind to specific antigens on blood clots or on cancer cells. The monoclonal antibodies can also carry markers which make it easy for doctors to see where they have built up. This allows doctors to detect problems before they seriously affect a person's health. For example, the blood test for prostate cancer uses monoclonal antibodies to bind to prostrate-specific antigens.antigens Treatment of disease - monoclonal antibodies can be used to carry drugs to specific tissues. Because they bind to the antigens in a tumour, for example, they can be used to take drugs or radioactive substances directly to the cancer cells. Key terms: infectious, disease, pathogen, primary, secondary.

nology-virtual-lab

Active and passive immunity What is the difference? Outcomes 3: Identify different components of our immune system. 5: Describe the role of different features in protecting us against infectious disease. 7: Evaluate how these parts work together to form a system. Key terms: infectious, disease, pathogen, primary, secondary.

What problems can our immune system cause us? Outcomes 3: Identify different components of our immune system. 5: Describe the role of different features in protecting us against infectious disease. 7: Evaluate how these parts work together to form a system. Key terms: infectious, disease, pathogen, primary, secondary.

WHEN BLOOD TYPES MIX