3.1.5 Protist Diseases

• What are communicable diseases?

  Diseases transmitted from organism to organism
• Examples of communicable diseases include the flu, tuberculosis, and malaria.


  True
• What type of organisms are protists classified as?

  Eukaryotic
• Are protists unicellular or multicellular?

  Both unicellular and multicellular
• What is the causative protist of giardiasis?

  Giardia lamblia
• Amoebic dysentery is caused by the protist Entamoeba
• Which protist causes malaria?

  Plasmodium
• Protists like Plasmodium, Giardia lamblia, and Entamoeba histolytica have complex life cycles involving multiple stages and hosts.


  True
• Protist pathogens are a major cause of communicable diseases because they can infect a host and spread to others.


  True
• In the life cycle of *Plasmodium*, sporozoites are injected into human blood by mosquitoes
• Communicable diseases are caused by pathogens and can be transmitted from one organism to another.


  True
• Protists are eukaryotic organisms that are not plants, animals, or fungi
• Match the protist disease with its causative protist:

  Malaria ↔️ *Plasmodium*

  Giardiasis ↔️ *Giardia lamblia*

  Amoebic dysentery ↔️ *Entamoeba histolytica*
• The protozoan *Giardia lamblia* is transmitted through contaminated food or water
• Malaria is primarily spread by mosquitoes, while giardiasis and amoebic dysentery are transmitted through contaminated food or water.

  True
• Giardiasis can lead to malabsorption of nutrients and dehydration.

  True
• Fatigue is a common symptom of malaria.

  True
• What is cerebral malaria caused by?

  Brain infection
• Dehydration is a complication of giardiasis.


  True
• Intestinal perforation is a complication of amoebic dysentery.
• Steps in diagnosing protist diseases:

  1️⃣ Microscopic examination of samples

  2️⃣ Specific diagnostic tests to identify pathogens

  3️⃣ Analysis of blood smears, stool samples, or tissue biopsies
• Antiprotozoal drugs are used to treat protist infections
• Prompt treatment of protist diseases can prevent complications.

  True
• Spraying insecticides reduces mosquito populations
• Access to clean water is essential to prevent amoebic dysentery.


  True
• Communicable diseases are caused by microscopic organisms called pathogens
• Match the communicable disease with its causative pathogen:

  Flu ↔️ Virus

  Tuberculosis ↔️ Bacteria

  Malaria ↔️ Protist
• All protists are pathogens that cause diseases.

  False
• Malaria is caused by the protist Plasmodium
• Amoebic dysentery is caused by Entamoeba histolytica.


  True
• What are examples of protists that cause communicable diseases?

  Malaria, giardiasis, amoebic dysentery
• Match the protist disease with its causative agent:

  Malaria ↔️ Plasmodium

  Giardiasis ↔️ Giardia lamblia

  Amoebic dysentery ↔️ Entamoeba histolytica
• The disease malaria is caused by the protist *Plasmodium*, which is transmitted by mosquitoes
• Match the protist disease with its causative agent:

  Malaria ↔️ *Plasmodium*

  Giardiasis ↔️ *Giardia lamblia*

  Amoebic dysentery ↔️ *Entamoeba histolytica*
• Describe the life cycle stages of *Plasmodium* in the correct order:

  1️⃣ Sporozoites injected into human blood by mosquito

  2️⃣ Sporozoites infect liver cells

  3️⃣ Merozoites infect red blood cells

  4️⃣ Gametocytes taken up by mosquitoes
• Some protists are unicellular, while others are multicellular.


  True
• Describe the life cycle stages of *Giardia lamblia* in the correct order:

  1️⃣ Trophozoites attach to small intestine lining

  2️⃣ Cysts excreted in feces
• Protist diseases can be transmitted through various routes, including contaminated food, water, and insect bites.


  True
• The complications of malaria can include organ failure, cerebral malaria, anemia, and death
• What is the causative agent of malaria?

  Plasmodium