Parasitology Lecture: Introduction

<p>They are typically much smaller than other amoebas. (B)</p> Signup and view all the answers

<p><em>Entamoeba coli</em> (C)</p> Signup and view all the answers

<p><em>Entamoeba histolytica</em> (B)</p> Signup and view all the answers

<p><em>Iodamoeba bütschlii</em> (A)</p> Signup and view all the answers

<p><em>Endolimax nana</em> (D)</p> Signup and view all the answers

<p>Entamoeba coli (A), Entamoeba hartmanni (D)</p> Signup and view all the answers

<p>Entamoeba dispar (C)</p> Signup and view all the answers

<p>Entamoeba moshkovskii (D)</p> Signup and view all the answers

<p>Their size (B)</p> Signup and view all the answers

<p>All of the above (D)</p> Signup and view all the answers

<p>Fasciolopsis buski (C)</p> Signup and view all the answers

<p>Deprivation of iron by sucking blood (B)</p> Signup and view all the answers

<p>Hymenolepis nana (C)</p> Signup and view all the answers

<p>All of the above (D)</p> Signup and view all the answers

<p>Directly attacking and destroying red blood cells (C)</p> Signup and view all the answers

<p>Features that already exist in a parasite that make it suitable for a parasitic lifestyle (B)</p> Signup and view all the answers

<p>By secreting digestive enzymes that break down the tissue (C)</p> Signup and view all the answers

<p>Fleas (A)</p> Signup and view all the answers

<p>It makes individuals resistant to infection by <em>Plasmodium falciparum</em> (D)</p> Signup and view all the answers

<p>Rapidly changing their surface antigens (B)</p> Signup and view all the answers

<p>Through the blood stream via the portal vein (C)</p> Signup and view all the answers

<p>Production of toxins (A)</p> Signup and view all the answers

<p>Balantidium coli (B)</p> Signup and view all the answers

<p>Inhibition of DNA replication (D)</p> Signup and view all the answers

<p>Provides a temporary haven for the parasite, allowing it to survive but not develop further. (A)</p> Signup and view all the answers

<p>Amoebic dysentery (A)</p> Signup and view all the answers

<p>Paramomycin (B)</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>An intermediate host holds the infective stage while a definitive host allows sexual reproduction to occur. (D)</p> Signup and view all the answers

<p>Disrupting DNA replication (B)</p> Signup and view all the answers

<p>Avoiding consumption of street foods (D)</p> Signup and view all the answers

<p>Capable of free-living existence. (C)</p> Signup and view all the answers

<p>Promoting the adhesion and contact-dependent toxicity of the parasite to host cells (C)</p> Signup and view all the answers

<p>Insecta (B)</p> Signup and view all the answers

<p>Their first pair of appendages are poison claws. (D)</p> Signup and view all the answers

<p>Cone-nose bugs (B)</p> Signup and view all the answers

<p>Trophozoite (B)</p> Signup and view all the answers

<p>Found in liquid stools (A)</p> Signup and view all the answers

<p>Kinetofragminophorea (C)</p> Signup and view all the answers

<p>A disease that is present in a population at a steady rate. (A)</p> Signup and view all the answers

<p>Incidence (C)</p> Signup and view all the answers

<p>A disease that spreads over a wide geographical area, potentially affecting a large portion of the globe. (A)</p> Signup and view all the answers

<p>Grain beetle (D)</p> Signup and view all the answers

<p>Fleas (D)</p> Signup and view all the answers

<p>Only insects (B)</p> Signup and view all the answers

<p>Amoeba are unicellular organisms. (C)</p> Signup and view all the answers

<p>Trophozoite (B)</p> Signup and view all the answers

<p>Non-motile (C)</p> Signup and view all the answers

<p>Prevalence refers to all cases at a specific time while incidence refers to new cases in a defined period. (D)</p> Signup and view all the answers

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A parasite that lives inside the host, causing infection.

A parasite that lives on the outside of the host, causing infestation.

Changes that enable survival in unfavorable environments under parasitic conditions.

Specialized attachment organs developed by parasitic flatworms.

Parasites alter their surface to avoid detection by the host's immune system.

A parasite that causes local damage to the intestinal wall using suckers.

An intestinal amoeba that erodes the intestinal wall with proteolytic enzymes.

Parasite that invades and multiplies in red blood cells, causing severe issues.

A hookworm that deprives the host of iron by sucking blood, leading to anemia.

A genetic characteristic providing resistance to Plasmodium falciparum infection.

The host where a parasite reaches maturity and reproduces.

A host where the parasite develops but does not reach maturity.

A host that allows the parasite to survive in an arrested state without further development.

A host that harbors a parasite and can transmit it to others.

A parasite that cannot survive without a host.

E. histolytica can spread via the portal vein and infect the liver.

An enzyme that degrades host proteins, helping E. histolytica attach to the gut.

A lectin that binds to galactose and N-acetylgalactosamine for cell adherence.

Protein that forms ion channels in phagocytized eukaryotic cells.

A treatment that prevents protein synthesis in the protozoa.

Antibiotic that binds to the 30S ribosomal subunit, interfering with protein synthesis.

A drug that damages DNA leading to cell death in amoebic infections.

Boil water, avoid human feces fertilizers, and steer clear of street food.

An intestinal amoeba causing serious disease by invading the intestinal wall.

A non-pathogenic amoeba, morphologically similar to E. histolytica, generally asymptomatic.

A non-pathogenic amoeba found in tropical areas; prevalence and disease role unclear.

A non-pathogenic amoeba resembling E. histolytica, does not cause infections.

Level of sanitation affects amoebiasis prevalence; higher in tropical regions.

Class of arthropods known as centipedes, characterized by one pair of poison claws.

Largest class of arthropods, with a body divided into head, thorax, and abdomen.

Order that includes human lice, external parasites that feed on blood.

Order featuring cone-nose bugs, which can transmit Trypanosoma cruzi.

The number of new cases of a disease in a defined time period.

The total number of existing cases of a disease in a population at a given time.

Disease that is consistently present in a specific population or region.

A sudden increase in the incidence of a disease above what is normally expected.

A disease that has spread across several countries or continents, affecting a large number of people.

The active, feeding stage of amoebae, characterized by motility.

The inactive, non-feeding stage of amoebae, formed in stool.

Different structural forms of amoeba, specifically the trophozoite and cyst stages.

Phylum that includes subphyla Sarcodina (amoebae) and Mastigophora (flagellates).

Sub-phylum of the phylum Sarcomastigophora, includes amoebae.

The most common smaller intestinal amoeba, similar in size to E. hartmanni.

The first parasitic amoeba described in humans, resembling E. histolytica.

An amoeba known as 'iodine-loving,' with a distinct basket of nuclear granules.

Vacuoles within amoebas that can contain bacteria or other substances.

The clustering of chromatin within the nucleus of an amoeba.

Spherical with a size range similar to E. hartmanni.