110 public questions tagged with this topic.
Plasma cells, derived from B-lymphocytes, are responsible for producing antibodies.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
The lymphatic system does not have a pump like the heart; lymph flows through contraction of muscles and one-way valves.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Memory B-cells are responsible for immunological memory, allowing a faster and stronger response upon second exposure to the same antigen.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
The lymphatic system is not responsible for oxygen transport; its primary functions include immune defense and fluid balance.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Memory B-cells retain information about pathogens and provide long-term immunity upon re-exposure.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Histamine does not reduce inflammation; instead, it promotes inflammation by causing blood vessels to dilate.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Macrophages act as antigen-presenting cells (APCs) by processing and presenting antigens to T-cells.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Lymph does not contain red blood cells; it carries white blood cells and helps in immune defense.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
The lymphatic system helps filter lymph and plays a key role in immune response.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Histamine is released by mast cells during allergic reactions, leading to symptoms like swelling and itching.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
B-lymphocytes differentiate into plasma cells, which produce antibodies for immune responses.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Type I hypersensitivity reactions, mediated by IgE, lead to anaphylaxis, which is a severe allergic reaction.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Cancer - Causes Types Treatment Metastasis
