Protozoa MCQs | Protozoa Multiple Choice Questions and Answers

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Questions
1 pH range optimal for maximum metabolic activity of protozoa is ______________
A 2-3
B 12-14
C 6-8
D 4-6

Answer: 6-8
2 What is the maximum temperature for protozoa?
A 40 degrees C
B 10 degrees C
C 16 degrees C
D 25 degrees C

Answer: 40 degrees C
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3 African sleeping sickness is caused by _________________
A bacteria
B fungi
C protozoa
D viruses

Answer: protozoa
4 Which of the following is an aerobic protozoa?
A Metopus
B Saprodinium
C Vorticella
D None of the above

Answer: Vorticella
5 When parasitic protozoa parasitize other protozoan it is known as ______________
A Parasitism
B Mutualism
C Hyperparasitism
D Hypoparasitism

Answer: Hyperparasitism
6 Name protozoa was given by:
A Goldfuss
B Hall
C Jablot
D None Of The Above

Answer: Goldfuss
7 Protozoa have several types of vacuoles.The function of a contractile vacuole is to
A maintain osmotic balance by continuous water expulsion
B creates sites of food digestion
C contain specific enzymes that perform various functions
D None Of The Above

Answer: maintain osmotic balance by continuous water expulsion
8 Number of motility structures on flagellated cells is
A greater than ciliated cells
B lesser than ciliated cells
C equal to ciliated cells
D None of these

Answer: lesser than ciliated cells
9 Which of the following is least likely to get in or on a protozoan such as a diplomonad or trichomonad?
A Flagella
B More than one nucleus
C Genes to produce a cyst form
D Rigid polysaccharide cell wall

Answer: Rigid polysaccharide cell wall
10 Which of the following describes the function of a phagocytic vacuole?
A Contain specific enzymes that perform various functions
B Maintain osmotic balance by continuous water expulsion
C Sites of food digestion
D None Of The Above

Answer: Sites of food digestion
11 Members of the Protozoa may motile by all of the following methods except
A flagella
B gliding by slime secretion
C cilia
D pseudopodia

Answer: gliding by slime secretion
12 Organisms which have spore-forming stage in their life cycle and lack special locomotory organelles belong to which phylum of Protozoa?
A Microspora
B Myxozoa
C Apicomplexa
D None of the above

Answer: Apicomplexa
13 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

Answer: Comprise the microbial population known as phytoplankton
14 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

Answer: lesser than conjugation
15 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 phagocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles
D None of these

Answer: phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles
16 In diatoms, auxospores help in
A metabolism
B Spore formation
C Reproduction
D Growth

Answer: Reproduction
17 Which of the following is not a character of protista?
A Protista are prokaryotic
B Body organization is cellular
C Some protists have cell walls
D Membrane bound organelles are present in cells

Answer: Protista are prokaryotic
18 Single celled eukaryotes are include in
A Fungi
B Archae
C Monera
D Protista

Answer: Protista
19 Kingdom protista includes organisms like
A Euglena, Spirogyra and Penicillium
B Amoeba, Spirogyra and Penicillium
C Amoeba, Euglena and Penicillium
D Amoeba, Euglena and Diatoms

Answer: Amoeba, Euglena and Diatoms
20 Protista differs from monera in having
A cellwall
B Nuclear membrane
C Flagella
D None Of The Above

Answer: Nuclear membrane

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