Introduction to Parasitology

An intermediate host is used by a parasite to multiply asexually during its life cycle.

Obligate parasites cannot survive without their host, whereas facultative parasites can live free or in association with a host.

Anthropozoonosis is an infection acquired by humans from other vertebrates, while zooanthroponosis is a human infection that can be transmitted to other vertebrates.

<p>A reservoir host is an organism where a parasite lives and multiplies without harming the host, often laying groundwork for transmission to other species.</p> Signup and view all the answers

<p>Symbiosis refers to the close association and living together of two dissimilar organisms.</p> Signup and view all the answers

<p>A biological vector is involved in the life cycle of a parasite, allowing it to undergo developmental changes, while a mechanical vector simply transmits the parasite without facilitating its development.</p> Signup and view all the answers

<p>The four species are P.falciparum, P.malariae, P.vivax, and P.ovale.</p> Signup and view all the answers

<p>Common diseases include dysentery caused by Entamoeba and diarrhea caused by Giardia.</p> Signup and view all the answers

<p>Medical parasitology focuses on parasites infecting humans, the diseases they cause, and methods for diagnosis, treatment, and prevention.</p> Signup and view all the answers

<p>Two examples are Schistosoma spp. and Taenia spp. (tapeworm).</p> Signup and view all the answers

<p>Parasitology is the branch of biology that studies the phenomenon of dependence of one living organism on another, specifically focusing on parasites, their hosts, and the relationships between them.</p> Signup and view all the answers

<p>Mutualism is a symbiotic relationship beneficial to both partners, while parasitism involves one organism benefiting at the detriment of the host.</p> Signup and view all the answers

<p>Biological vectors are hosts essential to the life cycle of a parasite, whereas mechanical vectors are not essential and merely transport the parasite without being part of its life cycle.</p> Signup and view all the answers

<p>A zoonosis is a disease that originates in animals and can be transmitted to humans, such as rabies.</p> Signup and view all the answers

<p>Euzoonosis pertains to diseases common to both humans and reservoir hosts, while parazoonosis refers to diseases where humans are infrequent hosts.</p> Signup and view all the answers

<p>Predators are organisms that attack other living animals, but they do not necessarily kill them as parasites might do.</p> Signup and view all the answers

<p>A Biological Vector is an organism that transports a parasite and allows it to undergo some aspect of its life cycle within itself.</p> Signup and view all the answers

<p>Flies can act as mechanical vectors for feces-borne pathogens such as Salmonella.</p> Signup and view all the answers

<p>Studying parasite ecology is significant for understanding how parasites interact with their environment and hosts, informing conservation efforts and disease management.</p> Signup and view all the answers

<p>A Definitive Host is the organism in which the parasite completes its sexual cycle, including fertilization and meiosis.</p> Signup and view all the answers

<p>Taxonomy and phylogenetics are important in parasitology for classifying parasites and understanding their evolutionary relationships and interactions with hosts.</p> Signup and view all the answers

<p>An Intermediate Host is where the parasite replicates but does not undergo its sexual cycle.</p> Signup and view all the answers

<p>Francesco Redi is recognized as the father of modern parasitology for his early descriptions and recognition of important parasites.</p> Signup and view all the answers

<p>The malaria parasite (Plasmodium spp.) is associated with mosquitoes as its definitive host.</p> Signup and view all the answers

<p>Snakes are an example of an Intermediate Host for Sarcocystis singaporensis.</p> Signup and view all the answers

<p>Biological vectors support part of the parasite's life cycle, while mechanical vectors merely transport the parasite without any developmental process.</p> Signup and view all the answers

<p>Mammals, including humans, serve as intermediate hosts for the malaria parasite (Plasmodium spp.).</p> Signup and view all the answers

<p>Ectoparasites live on the external surface of a host, while endoparasites live inside a host.</p> Signup and view all the answers

<p>Sarcocystis singaporensis has been proposed as a biological control agent for rodent pests.</p> Signup and view all the answers

<p>Reservoir hosts are populations in which a parasite resides when it isn't affecting populations of concern.</p> Signup and view all the answers

<p>The Anopheles mosquito is the vector for the parasitic disease malaria.</p> Signup and view all the answers

<p>The distinction can depend on which organism's infection is of greater concern in a given context.</p> Signup and view all the answers

<p>Vaccinating pets, avoiding handling wild animals, and reducing rabies incidence in reservoir populations.</p> Signup and view all the answers

<p>Protists, helminths (worms), fungi, and arthropod vectors are studied in parasitology.</p> Signup and view all the answers

<p>All pathogens can be broadly classified as parasites.</p> Signup and view all the answers

<p>We tend to care more about the health of the human host than that of the mosquito vector.</p> Signup and view all the answers