NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Protozoa are divided based on their mode of locomotion, which of the following is FALSE?
A
Flagellates have a whip like structure
B
Ciliates have a tiny hair
C
Amoeboids have false feet
D
Sporozoans are motile
Explanation: 

Detailed explanation-1: -Sporozoans are non-motile, unicellular protists, usually parasites. These protozoans are also called intracellular parasites.

Detailed explanation-2: -Locomotion. Protozoa move in the environment in three different ways: ameboid movement, flagella, and cilia. The ameboid movement is typical of ameboid protozoa (see below) and some other forms. Movement is achieved by cytoplasmic protrusions known as pseudopodia.

Detailed explanation-3: -Unlike the crawling movement of amoebae and vertebrate fibroblasts, sporozoon protozoa are characterized by a ‘gliding movement’ in which no obvious changes occur in cell shape.

Detailed explanation-4: -Sporozoans are characterized by being one-celled, non-motile, parasitic, and spore-forming. Most of them have an alternation of sexual and asexual stages in their life cycle. An example of sporozoan is the Plasmodium falciparum, which is the causative agent of malaria.

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