AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Viruses show no molecular movement until they infect a cell, and since molecular movement is considered essential for life, it is debated whether viruses are truly alive.
Source: Chapter 5, Introduction
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The examiner expects you to directly link no molecular movement in viruses to the definition of life. The key concept is that molecular movement is necessary for maintaining living structures, and viruses lack this until they infect a host cell. Avoid vague answers like "they don't eat or breathe" — be specific about molecular movement.