6 public questions tagged with this topic.
Malaria is caused by the protozoan Plasmodium, not bacteria. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Human Health and Disease, Topic: Immunity, diseases and health maintenance.
Typhoid fever is caused by the bacterium Salmonella typhi, which spreads through contaminated food and water. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Zoology section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Zoology portion (Latest NCERT Textbooks for Academic Session 2026-27 - Rationalized Edition for Class XI and XII), Topic: Structural organization, physiology, human health and related concepts as per latest syllabus.
Malaria is caused by the protozoan Plasmodium, not bacteria.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Protozoan - Malaria Amoebiasis
Tuberculosis (TB) is caused by Mycobacterium tuberculosis and primarily affects the lungs.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Typhoid is listed as a bacterial disease. Other bacterial diseases mentioned include cholera, tetanus and citrus canker.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Bacteria - Structure and Economic Importance
Bacteria, specifically pathogenic heterotrophic bacteria, are notorious for causing extensive damage to human beings, crops, farm animals, and pets. According to the NCERT Class 11 Biology textbook, notorious and widespread diseases such as cholera, typhoid, tetanus in humans, and citrus canker in agricultural plants, are all caused by different specific species of bacteria. They typically cause disease by invading tissues or producing potent toxins.
Ref: NCERT Class 11 Biology > Chapter 2: Biological Classification > 2.1 Kingdom Monera
