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Human Health and Disease MCQs
Class XII Biology
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NCERT Based
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NEET Practice
📘 Concept Based
📝 Exam Level
🤖 AI Explanations
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446 questions in this chapter
Question 131 of 446
📘 CLASS XII
After entering the human body, the Plasmodium sporozoites initially multiply within the:
The parasites initially multiply within the liver cells and then attack the red blood cells.
Question 132 of 446
📘 CLASS XII
In the mosquito host, Plasmodium parasites multiply to form sporozoites that are stored in the mosquito's:
The parasites multiply within them to form sporozoites that are stored in their salivary glands.
Question 133 of 446
📘 CLASS XII
Amoebiasis symptoms include constipation, abdominal pain, cramps, and stools containing:
healthy person acquires this infection through contaminated water, vegetables, fruits, etc..
Question 134 of 446
📘 CLASS XII
In filariasis, which organs are often affected, resulting in gross deformities?
The genital organs are also often affected (in filariasis), resulting in gross deformities.
Question 135 of 446
📘 CLASS XII
The main symptoms of ringworms are the appearance of dry, scaly lesions on parts of the body such as the skin, nails, and:
Appearance of dry, scaly lesions on various parts of the body such as skin, nails and scalp are the main symptoms of ringworms.
Question 136 of 446
📘 CLASS XII
To prevent diseases like malaria and filariasis transmitted through insect vectors, the most important measure is to:
The most important measure is to control or eliminate the vectors and their breeding places.
Question 137 of 446
📘 CLASS XII
Which deadly disease was enabled to be completely eradicated through the use of vaccines and immunisation programmes?
The use of vaccines and immunisation programmes have enabled us to completely eradicate a deadly disease like smallpox.
Question 138 of 446
📘 CLASS XII
The overall defense mechanism provided by the body's immune system is categorized into Innate Immunity and:
Immunity is of two types: (i) Innate immunity and (ii) Acquired immunity.
Question 139 of 446
📘 CLASS XII
The mucous coating of the epithelium lining the respiratory and gastrointestinal tracts acts as which type of innate barrier?
Mucus coating of the epithelium lining the respiratory, gastrointestinal and urogenital tracts also help in trapping microbes.
Question 140 of 446
📘 CLASS XII
Tears from eyes are classified as an example of which type of innate immunity barrier?
Acid in the stomach, saliva in the mouth, tears from eyes–all prevent microbial growth.
