Q2 (NDA-II/2014) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Microbiology and immunity Answer Verified

Statement I : Amoeba is a unicellular organism and the single cell performs all functions of a living organism. Statement I : Cell is the fundamental unit of living organism.

Both the statements are individually true and Statement II is the correct explanation of Statement I

Both the statements are individually true but Statement II is not the correct explanation of Statement I

Statement I is true but Statement II is false

Statement I is false but Statement II is true

Result

Your answer: — · Correct: A

Explanation

Statement I is true as Amoeba is a unicellular organism where a single cell performs all essential life functions, including digestion, respiration, excretion, and reproduction [1]. Statement II is also true, as the cell is the fundamental structural and functional unit of all living organisms [2]. The relationship between the two is explanatory: because the cell is the basic unit of life capable of independent existence and performing all necessary life processes, a single-celled organism like Amoeba can function as a complete living entity. Unicellular organisms demonstrate that a single cell possesses the full capability to sustain life independently, which directly supports the definition of the cell as the fundamental unit of life [1]. Thus, Statement II provides the underlying biological principle that explains why Statement I is possible.

Sources

[1] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 2: The Invisible Living World: Beyond Our Naked Eye > 2.5 Why Is Cell Considered to Be a Basic Unit of Life? > p. 23
[2] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 2: The Invisible Living World: Beyond Our Naked Eye > Snapshots > p. 24

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Statement I : Amoeba is a unicellular organism and the single cell performs all functions of a living organism. Statement I : Cell is the fundamental unit of living organism.

Explanation

SIMILAR QUESTIONS

Assertion (A) : Amoeba is reproduced by fission. Reason (R) : All unicellular organisms are reproduced by asexual methods.

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