MCQ Detailed View

Hepatitis is a disease that causes inflammation of the liver. It affects the liver's ability to function properly. The most common cause of hepatitis in humans is a group of viruses known as hepatitis viruses. Therefore, the correct answer is: Virus.

There are several types of hepatitis viruses, including Hepatitis A, B, C, D, and E. Each type is caused by a different virus, and they spread in different ways:

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  Hepatitis A and E are usually spread through contaminated food or water.

  
  


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  Hepatitis B, C, and D are spread through blood or other bodily fluids.

  
  

These viruses attack liver cells and can lead to symptoms such as fatigue, jaundice (yellowing of the skin and eyes), fever, nausea, abdominal pain, and dark-colored urine. Some types of hepatitis, especially Hepatitis B and C, can become chronic and cause long-term liver damage such as liver cirrhosis or liver cancer.

Let’s examine the incorrect options:

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  Protozoans are single-celled organisms that can cause diseases like malaria but are not responsible for hepatitis.

  
  


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  Algae are photosynthetic organisms found in water. They do not infect humans or cause liver diseases.

  
  


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  Fungi can cause infections like athlete’s foot or thrush, but they are not linked to hepatitis.

  
  

Hepatitis viruses are small infectious agents that target liver cells. The body’s immune response to the virus leads to liver inflammation and symptoms. Vaccines are available for some types of hepatitis, such as Hepatitis A and B, which can help prevent infection.

In summary, hepatitis is a liver disease caused by viruses, and identifying them correctly is important in biology and health sciences.

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