Question

Two parts of the Plasmodium erythrocytic cycle affect the human host in the follow ways. The ____ is responsible for the clinical symptoms of malaria in one human host, and the ______ releases spores into the human's blood that make it possible for the malaria to be passed on to a _______ and then to another human.


1.
a. asexual portions
b. sexual portions

2.
a. sexual portion
b. a sexual portion

3.
a. moosquito
b. flea

Answer 1

asexual portions are responsible for the symptoms. the asexual stage takes places exclusively in human body and is divided in two phases, pre-erythrocytic and and erythrocytic. it is the phase that destroy red blood cells and therefore responsible for the symptoms of malaria. the sexual portions release the spores in blood. they are called sporozytes and are responsible for giving rise to the eventual malarial parasite. mosquito transfers sporozytes from one human to another and the cycle continues.