In which of the following organism does a single cell perform all function of active...
In which of the following organism does a single cell perform all function of active movement, nutrition, growth, excretion and photosynthesis? Options
- A) Paramecium
- B) Amoeba
- C) Euglena
- D) Hydra
Correct Answer: C) Euglena
Explanation
The question is asking which organism has a single cell that can perform all the functions of active movement, nutrition, growth, excretion, and photosynthesis. The options are Paramecium, Amoeba, Euglena, and Hydra. Out of these options, the correct answer is Euglena. Euglena is a unicellular organism that has a flagellum which it uses for active movement. It also has chloroplasts which are responsible for photosynthesis, and it can absorb nutrients from its environment for nutrition. Euglena is also capable of excreting waste products through an organelle called the contractile vacuole. Finally, it can undergo cell division to grow and reproduce. It is important to note that while Paramecium and Amoeba are also unicellular organisms, they do not have chloroplasts and cannot perform photosynthesis. Hydra, on the other hand, is a multicellular organism and does not have a single cell that can perform all the functions listed in the question. In summary, Euglena is the correct answer because it is a unicellular organism that can perform all the functions of active movement, nutrition, growth, excretion, and photosynthesis.