Question 1. Holozoic nutrition is characterized by
phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
photosynthesis
Explanation:-
Answer: Option A. -> phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
Question 2. Saprozoic nutrition is characterized by
phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
encystment of solid nutrients and subsequent formation of secretory vacuoles
pinocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles
Explanation:-
Answer: Option D. -> pinocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles
Question 3. Which of the following is least likely to have a rigid cell wall?
Bacterium
Archaean
Fungus
Protozoan
Explanation:-
Answer: Option D. -> Protozoan
Question 4. Organisms with amoeboid cells that move within a network of mucous tracks using a typical gliding motion belong to which phylum of Protozoa?
Labyinthomorpha
Microspora
Apicomplexa
Myxozoa
Explanation:-
Answer: Option A. -> Labyinthomorpha
Question 5. The numbers of nuclear divisions involved in a ciliate undergoing binary fission is
greater than conjugation
lesser than conjugation
equal to conjugation
none of these
Explanation:-
Answer: Option B. -> lesser than conjugation
Question 6. Which of the following is not true of protozoa?
Lack cell wall
Produce no sporebearing structures
Comprise the microbial population known as phytoplankton
Form active feeding forms called trophozoites
Explanation:-
Answer: Option C. -> Comprise the microbial population known as phytoplankton
Question 7. Which of the following is not a function of cysts for Protozoa?
Protect against adverse environments
Sites for nuclear reorganization and cell division
Serve as a means of transfer between hosts in parasitic species
All of the above
Explanation:-
Answer: Option D. -> All of the above
Question 8. Sexual reproduction in the Protozoa occurs most commonly by
conjugation
gametangial contact
binary fission
binary fusion
Explanation:-
Answer: Option A. -> conjugation
Question 9. 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?
Sarcomastigophora
Microspora
Apicomplexa
Myxozoa
Explanation:-
Answer: Option C. -> Apicomplexa
Question 10. . Most commonly asexual reproduction in the Protozoa is by
