22 public questions tagged with this topic.
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
AIDS is mainly transmitted through contaminated needles, sexual contact, and blood transfusions, so using disposable needles helps prevent infection.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
Tar, a component of tobacco smoke, contains carcinogenic substances that increase the risk of lung cancer.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Cancer - Causes Types Treatment Metastasis
Cancer cells can metastasize, meaning they spread to other tissues and organs through the blood and lymphatic system.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Cancer - Causes Types Treatment Metastasis
AIDS is caused by the human immunodeficiency virus (HIV), which is a retrovirus, not a bacterium.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Immune Disorders - Allergies Autoimmunity and AIDS
Active immunity provides long-lasting protection because it involves the formation of memory cells.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Immunity - Acquired Immunity - Active Passive Vaccination
Vaccines stimulate active immunity by prompting the immune system to create memory cells.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Immunity - Acquired Immunity - Active Passive Vaccination
Vaccines work by stimulating the immune system to produce memory cells that provide long-term immunity.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Immunity - Acquired Immunity - Active Passive Vaccination
Vaccination provides **active** immunity by stimulating the immune system, not passive immunity.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Immunity - Acquired Immunity - Active Passive Vaccination
Filariasis is caused by the helminth Wuchereria, which affects the lymphatic system.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Helminthic and Fungal - Ascariasis Filariasis Ringworm
Interferons are signaling proteins produced by virus-infected cells to help protect neighboring cells from viral infection.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
Tuberculosis is caused by Mycobacterium tuberculosis and is transmitted through airborne droplets.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
