PROTOZON QUIZ | EXAMIANS

Sexual reproduction in the Protozoa occurs most commonly by

binary fission

binary fusion

gametangial contact

conjugation

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Protozoa are generally not

eukaryotic

lacking cell walls

microscopic

multicellular

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Holozoic nutrition is characterized by

pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

phagocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles

photosynthesis

phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

TRUE ANSWER : ?
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A protozoan is defined as

motile eukaryotic unicellular photosynthetic protist

motile prokaryotic unicellular protist

motile eukaryotic multicellular protist

motile eukaryotic unicellular protist

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Organisms which have spore-forming stage in their life cycle and lack special locomotory organelles belong to which phylum of Protozoa?

Microspora

Apicomplexa

Myxozoa

Ciliophora

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Members of which phylum of Protozoa are being considered as biological control agents for certain insects?

Apicomplexa

Sarcomastigophora

Microspora

all of these

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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?

Myxozoa

Microspora

Sarcomastigophora

Apicomplexa

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Saprozoic nutrition is characterized by

encystment of solid nutrients and subsequent formation of secretory vacuoles

phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

pinocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

pinocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles

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Which of the following is not true of protozoa?

Form active feeding forms called trophozoites

Comprise the microbial population known as phytoplankton

Lack cell wall

Produce no sporebearing structures

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Which of the following is least likely to get in or on a protozoan such as a diplomonad or trichomonad?

Genes to produce a cyst form

Flagella

Rigid polysaccharide cell wall

More than one nucleus

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