Which is an obligatory parasite?

An obligate parasite or holoparasite is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host. If an obligate parasite cannot obtain a host it will fail to reproduce. Holoparasites and some hemiparasites are obligate.

What are 4 examples of parasites?

Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes.

Is Viruses are obligate parasite?

Viruses are small obligate intracellular parasites, which by definition contain either a RNA or DNA genome surrounded by a protective, virus-coded protein coat.

What is an example of an obligate disease?

Examples of obligate parasites are the downy mildews, the powdery mildews, and the rusts. Certain fungi form highly specialized parasitic relationships with insects. For example, the fungal genus Septobasidium is parasitic on scale insects (order Homoptera) that feed on trees.

What are obligate parasites Class 11?

The Virus must carry out their reproduction by parasitizing a host cell. b. They cannot multiply outside a living cell.

What is an obligate stem parasite?

An obligate parasite cannot complete its life cycle without a host. A stem parasite attaches to the host stem.

Which fungi is obligate parasite?

Which of the following fungi is obligate parasite?

Complete answer: The disease white rust of crucifers is caused by Albugo candida. It is an obligate parasite and causes white rust disease in the members of different families like Cruciferae (Brassicaceae), Compositae (Asteraceae).

What are the examples for facultative parasites?

Most of the facultative parasites are free-living organisms, and they infect the host very rarely. Naegleria, Acanthamoeba, Candida are examples of facultative parasites. Certain fungal species are facultative parasites in nature. Sometimes they behave like facultative parasites and the other times as saprophytes in the absence of a host.

What are some examples of an obligatory parasite?

Rickettsia, Trichomonas, Taenia, Trichinella, and Chlamydia are examples of obligate parasites. Viruses are also considered as obligate parasites since they are not capable of reproducing and increasing in number without a host organism.

What are the most common human parasites?

Parasites are organisms that live in and feed off a living host. There are a variety of parasitic worms that can take up residence in humans. Among them are flatworms, thorny-headed worms, and roundworms. The risk of parasitic infection is higher in rural or developing regions.

What are some names of parasites?

Parasites are of two types such as ectoparasites and endoparasites. If a parasite lives on the surface of a host such as human is called as ectoparasite and if a parasite lives inside the living thing then it is termed as endoparasite.