Protozon – Section 1

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. phagocytosis of soluble nutrients and subsequent formation of phagocytic vacuoles
D. photosynthesis

Correct Answer: A. phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles

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
B. Microspora
C. Apicomplexa
D. Myxozoa

Correct Answer: 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

Correct Answer: 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?

A. Bacterium
B. Archaean
C. Fungus
D. Protozoan

Correct Answer: D. Protozoan

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

Correct Answer: B. lesser than conjugation

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