The toxic substance 'haemozoin' responsible for high fever and chill, is released in which of the following dieases?
- Typhoid
- Dengue
- Pneumonia
- Malaria
The Correct Option is D
Approach Solution - 1
Approach Solution -2
The correct answer is: (D) Malaria.
Haemozoin is a toxic substance that is released by the *Plasmodium* parasite, which causes malaria. When the *Plasmodium* parasite infects red blood cells, it breaks down hemoglobin, releasing heme as a byproduct. The parasite then detoxifies the heme into haemozoin, which is stored within the parasite. This release of haemozoin into the bloodstream causes an inflammatory response, leading to high fever and chills, which are characteristic symptoms of malaria.
Malaria is transmitted to humans through the bite of an infected female Anopheles mosquito. The disease is characterized by recurrent fever episodes, anemia, and in severe cases, can lead to organ failure. The release of haemozoin plays a key role in the symptoms associated with malaria.
Top Questions on Diseases
- Read the following passage and answer the questions that follow.
In 1981, the health workers of United States of America had become aware of the increased frequency of Kaposi’s sarcoma, cancer of the skin and blood vessels and another disease pneumocystis pneumonia, a respiratory infection caused by a protozoan. Both these diseases were very rare in the general population, but occurred frequently in more severely “immunosuppressed” individuals. This led to the recognition of the immune system disorder that was named Acquired Immune Deficiency Syndrome (AIDS). In 1983, virologists working in the USA and France had identified a causative agent for ’AIDS’, now known as Human Immunodeficiency Virus (HIV). “HIV” follows a set path to attack the human body to cause the disease.
(a) Name the group of cells the HIV attacks after gaining entry into the human body and write the various events that occur within this cell.
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(c) Mention any two steps suggested by WHO for preventing the spread of this disease.
(c) “A patient suffering from AIDS does not die of this disease but from some other infection.” Justify the statement. - The vector for dengue fever is:
(c) Name a species of mosquito other than female Anopheles and the disease, for which it carries the pathogen.
- (b) Studying Diseases
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