A scientist discovers a new organism with the characteristic features of locomotion. Class 9

A scientist discovers a new organism with the characteristic features of locomotion. Class 9

Question 1.

A scientist discovers a new organism with the characteristic features of locomotion and autotrophic nutrition. Which character(s) would help the scientist identify the organism belonging to Protista according to the five kingdom classification? Class 9

Answer:

If the organism has both locomotion and autotrophic nutrition, the following characters would help identify it as belonging to Kingdom Protista: It should be unicellular - Protista includes single-celled eukaryotic organisms. If it is multicellular, it would be placed in Plantae (if autotrophic) or Animalia (if it moves). It should be eukaryotic - it should have a well-defined membrane-bound nucleus. This would distinguish it from Kingdom Monera (prokaryotes), which also contains unicellular organisms but without a membrane-bound nucleus. It may or may not have a cell wall, and if present, the cell wall would be made of cellulose (not chitin).

An example of such an organism is Euglena, which is a unicellular eukaryote that is autotrophic in the presence of light (through photosynthesis) but can also be heterotrophic in the absence of light, and uses flagella for locomotion. This combination of locomotion and autotrophic nutrition in a unicellular eukaryote is characteristic of Protista.