Microbiology Objective Questions { Protozoan }

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1. Holozoic nutrition is characterized by

A. phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

B. pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

C. pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

D. photosynthesis

2. Organisms with amoeboid cells that move within a network of mucous tracks using a typical gliding motion belong to which phylum of Protozoa?

A. Labyinthomorpha

3. Saprozoic nutrition is characterized by

A. phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

B. pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

C. encystment of solid nutrients and subsequent formation of secretory vacuoles

D. pinocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles

4. Which of the following is least likely to have a rigid cell wall?

5. The numbers of nuclear divisions involved in a ciliate undergoing binary fission is

A. greater than conjugation

B. lesser than conjugation

C. equal to conjugation

D. none of these

6. Which of the following is not a function of cysts for Protozoa?

A. Protect against adverse environments

B. Sites for nuclear reorganization and cell division

C. Serve as a means of transfer between hosts in parasitic species

D. All of the above

7. Which of the following is not true of protozoa?

A. Lack cell wall

B. Produce no sporebearing structures

C. Comprise the microbial population known as phytoplankton

D. Form active feeding forms called trophozoites

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