Why is a virus, when isolated, not classified as a living organism?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Biology Mcqsbiology-mcqs
Published
11 May 2018
Last updated
28 May 2026

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Explanation

Viruses are not considered living entities because they cannot perform metabolic processes on their own. Without metabolism, they cannot generate energy or carry out life-sustaining chemical reactions independently.

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