Human Health and Disease
Nagaland Board · Class 12 · Biology
Flashcards for Human Health and Disease — Nagaland Board Class 12 Biology. Quick Q&A cards covering key concepts, definitions, and formulas.
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See them allWhat is the modern definition of health according to WHO?
Answer
Health is defined as a state of complete physical, mental and social well-being, not merely the absence of disease or physical fitness. It includes productivity, economic prosperity, longevity, and re…
What is the modern definition of health according to WHO?
Answer
Health is defined as a state of complete physical, mental and social well-being, not merely the absence of disease or physical fitness. It includes productivity, economic prosperity, longevity, and re…
What are pathogens? Give examples of different types.
Answer
Pathogens are disease-causing organisms that harm the host by living in or on them. Examples include: Bacteria (Salmonella typhi), Viruses (Rhinovirus), Protozoa (Plasmodium), Fungi (Microsporum), and…
What are pathogens? Give examples of different types.
Answer
Pathogens are disease-causing organisms that harm the host by living in or on them. Examples include: Bacteria (Salmonella typhi), Viruses (Rhinovirus), Protozoa (Plasmodium), Fungi (Microsporum), and…
Describe the causative agent, symptoms, and transmission of Typhoid fever.
Answer
Causative agent: Salmonella typhi (bacterium). Symptoms: Sustained high fever (39-40°C), weakness, stomach pain, constipation, headache, loss of appetite. Transmission: Through contaminated food and w…
Describe the causative agent, symptoms, and transmission of Typhoid fever.
Answer
Causative agent: Salmonella typhi (bacterium). Symptoms: Sustained high fever (39-40°C), weakness, stomach pain, constipation, headache, loss of appetite. Transmission: Through contaminated food and w…
Explain the life cycle of Plasmodium and its role in malaria transmission.
Answer
Plasmodium enters humans as sporozoites through infected female Anopheles mosquito bite → multiplies in liver cells → attacks RBCs causing rupture → releases haemozoin (causes fever) → mosquito picks …
Explain the life cycle of Plasmodium and its role in malaria transmission.
Answer
Plasmodium enters humans as sporozoites through infected female Anopheles mosquito bite → multiplies in liver cells → attacks RBCs causing rupture → releases haemozoin (causes fever) → mosquito picks …
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