Latest questions in this category.
Histamine is released by mast cells during allergic reactions, leading to inflammation and other symptoms.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Tuberculosis primarily affects the lungs, causing symptoms such as persistent cough and difficulty in breathing.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
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
Cannabinoids are derived from the Cannabis sativa plant and affect the central nervous system.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Inflammation is a key part of the immune response, helping to eliminate pathogens and repair tissue damage.
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
The BCG vaccine is a live-attenuated vaccine used for immunization against tuberculosis.
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
Heroin is an opioid drug derived from morphine and acts as a depressant on the central nervous system.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
