Q. No.A person gets infected by a pathogen and is now recovering from the disease. The type of immunity developed would be:
1. naturally acquired active immunity
2. artificially acquired active immunity
3. artificially acquired passive immunity
4. naturally acquired passive immunity
1. naturally acquired active immunity
2. artificially acquired active immunity
3. artificially acquired passive immunity
4. naturally acquired passive immunity
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The cells responsible for humoral adaptive immune responses proliferate and differentiate into plasma cells in the:
| 1. | liver | 2. | bloodstream |
| 3. | lymph nodes | 4. | red pulp of the spleen |
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The CD8 T lymphocytes destroy their target cells by releasing a substance that affects:
| 1. | cell membranes | 2. | lysosomes |
| 3. | ribosomes | 4. | DNA molecules |
CD4 and CD8 proteins can be best described as:
| 1. | attachment proteins on the surfaces of helper-T and cytotoxic T-cells |
| 2. | different protein chains seen in IgG and IgM antibodies |
| 3. | proteins on microbes that identify them as foreign |
| 4. | the proteins that antigen-presenting cells display along with foreign antigens |
An antibody molecule has an antigen-binding site located in the:
| 1. | hinge region |
| 2. | disulfide bonds |
| 3. | constant region of the L chains |
| 4. | variable regions of the H and L chains |
An immune process where particles such as bacteria are targeted for destruction by an immune cell known as a phagocyte is called as:
| 1. | chemotaxis | 2. | opsonization |
| 3. | cloning | 4. | anergy |
A part of the immune system that enhances the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promote inflammation, and attack the pathogen's cell membrane is called as:
| 1. | complement | 2. | interferon |
| 3. | lysozyme | 4. | mucus |
In malignant tumors, the cells proliferate, grow rapidly, and move to other parts of the body to form new tumors. This stage of the disease is called:
| 1. | metagenesis | 2. | metastasis |
| 3. | teratogenesis | 4. | mitosis |
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When an apparently healthy person is diagnosed as unhealthy by a psychiatrist, the reason could be that:
| 1. | the patient was not efficient at his work |
| 2. | the patient was not economically prosperous |
| 3. | the patient shows behavioural and social maladjustment |
| 4. | he does not take interest in sports |
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Which of the following are the reason(s) for Rheumatoid arthritis? Choose the correct option.
| i: | The ability to differentiate pathogens or foreign molecules from self-cells increases. |
| ii: | Body attacks self cells. |
| iii: | More antibodies are produced in the body. |
| iv: | The ability to differentiate pathogens or foreign molecules from self-cells is lost. |
| 1. | i and ii | 2. | ii and iv |
| 3. | iii and iv | 4. | i and iii |
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