Protozon problems
- 1. Members of the Protozoa may motile by all of the following methods except
Options- A. flagella
- B. gliding by slime secretion
- C. cilia
- D. pseudopodia Discuss
Correct Answer: gliding by slime secretion
- 2. Which of the following is not a function of cysts for Protozoa?
Options- 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 Discuss
Correct Answer: All of the above
- 3. Which of the following is not true of protozoa?
Options- A. Lack cell wall
- B. Produce no sporebearing structures
- C. Comprise the microbial population known as phytoplankton
- D. Form active feeding forms called trophozoites Discuss
Correct Answer: Comprise the microbial population known as phytoplankton
- 4. Sexual reproduction in the Protozoa occurs most commonly by
Options- A. conjugation
- B. gametangial contact
- C. binary fission
- D. binary fusion Discuss
Correct Answer: conjugation
- 5. Protozoa have several types of vacuoles.The function of a contractile vacuole is to
Options- A. maintain osmotic balance by continuous water expulsion
- B. creates sites of food digestion
- C. contain specific enzymes that perform various functions
- D. have sites for photosynthesis Discuss
Correct Answer: maintain osmotic balance by continuous water expulsion
- 6. Organisms with complex life cycles which include a mammalian host and an insect host and involves schizogony as part of the cycle belong to which phylum of Protozoa?
Options- A. Sarcomastigophora
- B. Microspora
- C. Apicomplexa
- D. Myxozoa Discuss
Correct Answer: Apicomplexa
- 7. Holozoic nutrition is characterized by
Options- A. phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
- B. pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
- C. phagocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles
- D. photosynthesis Discuss
Correct Answer: phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
- 8. Members of which phylum of Protozoa are being considered as biological control agents for certain insects?
Options- A. Microspora
- B. Sarcomastigophora
- C. Apicomplexa
- D. all of these Discuss
Correct Answer: Microspora
- 9. Protozoa are generally not
Options- A. multicellular
- B. microscopic
- C. lacking cell walls
- D. eukaryotic Discuss
Correct Answer: multicellular
- 10. Most commonly asexual reproduction in the Protozoa is by
Options- A. conjugation
- B. gametangial contact
- C. binary fission
- D. binary fusion Discuss
Correct Answer: binary fission
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