Plasmodium enters the human body as sporozoites (infectious form) through the bite of infected female Anopheles mosquito.
English
50 Questions
200 Marks
45 Mins English
Read the following passage and answer the questions:
Many viruses cause diseases in human beings. The virus that cause common cold infect the nose and respiratory passage but not the lungs. The common cold is characterised by nasal congestion and discharge, sore throat, hoarseness, cough, headache, tiredness, etc., which usually last for 3-7 days. Droplets resulting from cough or sneezes of an infected person are either inhaled directly or transmitted through contaminated objects such as pens, books, cups, doorknobs, computer keyboard or mouse, etc., and cause infection in a healthy person
Read the following passage and answer the questions from 46 to 50:
The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The substances to which such an immune response is produced are called allergens. On the other hand, memory-based acquired immunity evolved in higher vertebrates based on the ability to differentiate foreign organisms (e.g., pathogens) from self-cells.
