Questions focused on bacterial diseases like typhoid and pneumonia. Covers causes, transmission, symptoms, diagnosis, and treatment methods.
Mast cells release histamine and other chemicals that cause allergic reactions.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Diphtheria is caused by Corynebacterium diphtheriae, which produces a toxin affecting the throat and respiratory system.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Skin rashes are not a symptom of pneumonia; the disease primarily affects the respiratory system, causing fever, cough, and breathing difficulties.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Typhoid fever is caused by the bacterium Salmonella typhi, which spreads through contaminated food and water.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Inflammation is the bodyâs natural response to injury or infection, helping to eliminate pathogens and repair tissue damage.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Dengue is a vector-borne disease transmitted by Aedes mosquitoes.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Histamine does not inhibit inflammation; instead, it promotes inflammation and allergic responses.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
The Widal test is a serological test used to diagnose typhoid fever by detecting antibodies against Salmonella typhi.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Neutrophils do not produce antibodies; instead, they engulf and destroy pathogens through phagocytosis.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Typhoid fever is caused by the bacterium Salmonella typhi, which spreads through contaminated food and water.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Tetanus is caused by Clostridium tetani and is characterized by severe muscle stiffness and lockjaw.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Autoimmune diseases are not caused by bacterial infections; they result from immune system dysfunction.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
