Answer: b. sporozoite During a blood meal, a malaria-infected female Anopheles mosquito inoculates sporozoites into the human host. Sporozoites infect liver cells and start liver schizogony.
Who is primary host for malaria?
Life cycle of malaria parasites
Plasmodium parasites’ primary hosts and transmission vectors are female Anopheles mosquitoes. Humans and other vertebrates are secondary hosts. The mosquitoes first take in the parasite by feeding on the blood of an infected person.
Who is the primary host of a parasite?
Definitive or primary host – an organism in which the parasite reaches the adult stage and reproduces sexually, if possible. This is the final host.
Why Man is primary host of malaria?
Note: Mosquito first takes the parasite by feeding on the blood of an infected person and hence this mosquito is a primary host and then this mosquito bites the man and releases the parasite there but in man this parasite lives for a short period and hence man is a secondary host.
What are the two host of malaria parasite?
Malaria parasites spread by successively infecting two types of hosts: female Anopheles mosquitoes and humans.
What is the primary host of wuchereria?
Humans serve as the definitive host and mosquitos as the intermediate host. The adult parasites reside in the lymphatics of the human host.
What is primary host and secondary host?
A primary host or definitive host is a host in which the parasite reaches maturity and, in most cases, reproduces sexually. A secondary host or intermediate host is a host that harbors the parasite only for a short transition period during one or more of its developmental stages.
What is a primary host in science?
the host in which a parasite becomes sexually mature and usually spends most of its life cycle.
What is definitive host and intermediate host?
The definitive host is the one which harbors the adult parasite and where the parasite reproduces sexually. The intermediate host is the host which harbors the larval stage or the asexual forms of the parasite.
What is incidental host?
A host that becomes infected, but is not required for the maintenance of the population of a pathogen, can usefully be called an incidental host. (Accidental host is frequently used, but this is arguably a teleological term and therefore undesirable.)
Who was the first person with malaria?
It has probably afflicted humans throughout our evolutionary history, although the first historical reports of symptoms that match those of malaria date back to the ancient Egyptians (around 1550 B.C.) and the ancient Greeks (around 413 B.C.).
What is Merozoite induced malaria?
Merozoite: A daughter cell formed by asexual development in the life cycle of malaria parasites. Liver-stage and blood-stage malaria parasites develop into schizonts which contain many merozoites. When the schizonts are mature, they (and their host cells!)
What is a human host?
A human host is a nutrient-rich, warm, and moist environment, which remains at a uniform temperature and constantly renews itself. It is not surprising that many microorganisms have evolved the ability to survive and reproduce in this desirable niche.
How many hosts does malaria have?
The malaria parasite life cycle involves two hosts. During a blood meal, a malaria-infected female Anopheles mosquito inoculates sporozoites into the human host .
What is Trophozoites in malaria?
A trophozoite (G. trope, nourishment + zoon, animal) is the activated, feeding stage in the life cycle of certain protozoa such as malaria-causing Plasmodium falciparum and those of the Giardia group.
What is an intermediate host in microbiology?
Definition of intermediate host
1 : a host which is normally used by a parasite in the course of its life cycle and in which it may multiply asexually but not sexually — compare definitive host.