Certified Ophthalmic Medical Technologist (COMT) Practice Exam

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Study for the Certified Ophthalmic Medical Technologist (COMT) Exam. Prepare with insightful quizzes and multiple-choice questions that will enhance your understanding of ophthalmic technology. Get ready for your certification with confidence!

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Why are viruses considered to be parasitic?

  1. They can live independently

  2. They transform into bacteria

  3. They must reside within host cells

  4. They reproduce without hosts

The correct answer is: They must reside within host cells

Viruses are considered parasitic because they cannot reproduce on their own and must reside within host cells to replicate. This dependence on a host cell for reproduction and survival defines their parasitic nature. Unlike living organisms that can generate energy and replicate independently, viruses lack the necessary cellular machinery and metabolic processes. When a virus enters a host cell, it hijacks the cell's machinery to produce copies of itself, leading to the potential destruction of the host cell in the process. This parasitic relationship is a fundamental characteristic of all viruses, highlighting their reliance on other living organisms for their life cycle.

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