Available Answers

1. 1.

   Multiple-Choice Questions

   Tick (√) the correct option:

   1. Who invented microscope?
      1. Antonie van Leeuwenhoek
      2. Marconi
      3. Edison
      4. Zeiss
   2. The science that deals with the study of micro-organisms is called
      1. paleontology
      2. cytology
      3. microbiology
      4. histology
   3. Disease-causing micro-organisms are called
      1. bacteria
      2. virus
      3. microbes
      4. pathogens
   4. Amoeba is a
      1. bacterium
      2. virus
      3. fungus
      4. protozoan
   5. Bacteria move with the help of
      1. flagella
      2. gills
      3. water current
      4. wind
   6. Comma-shaped bacteria are called
      1. bacillus
      2. соссі
      3. spirilla
      4. vibrio
   7. Reproduction in bacteria commonly takes place by
      1. multiple fission
      2. binary fission
      3. sporulation
      4. budding
   8. Volvox is a
      1. unicellular algae
      2. multicellular algae
      3. colonial algae
      4. sedentary algae
   9. The process in which waterbodies receive excess nutrients that stimulate excessive growth is called
      1. carbonation
      2. nitration
      3. fumigation
      4. eutrophication
   10. False feet of Amoeba are called
       1. pseudopodia
       2. lymphopodia
       3. flagella
       4. cilia
2. 2.

   Fill in the blanks:

   1. ____________ is used in the preparation of beverages by fermentation of barley.
   2. ____________ is a parasitic protozoan that causes 'sleeping sickness'.
   3. ____________, a type of algae that lives in colonies.
   4. ____________ helps the Paramaecium to catch its prey.
   5. ____________ is heating the food products very high temperature with steam.
3. 3.

   Tick (√) the correct and cross (X) the wrong statement:

   1. Protozoa are plant-like organisms.
   2. Euglena can perform photosynthesis.
   3. Viruses are useful to mankind.
   4. Spirogyra is a filamentous form of algae.
   5. Bacteria have a well-developed nucleus.
   6. Tobacco mosaic is the name of a fungus.
4. 4.

   Match the following:

   Column A	Column B
   1. Mycelium	(a) Slipper-shaped
   2. Potato blight	(b) Plasmodium
   3. Paramaecium	(c) Jam, jelly, etc.
   4. Malaria-causing protozoan	(d) Rhizopus
   5. Sodium meta-bisulphite	(e) Viral disease
   6. Rabies	(f) Fungal disease

    

5. 5.

   Find the odd one out:

   1. bacillus, coccus, spirilla, anabaena, vibrio.
   2. smut, blight, anthrax, rust, wilt.
   3. Chlamydomonas, Spirogyra, Amoeba, Nostoc, Volvox.
   4. vinegar, sodium benzoate, agar-agar, sodium meta-bi-sulphite, sugar.
6. 6.

   Name the living organisms we see under a microscope.