Question

Which of the following statements is NOT correct?

• A. All organisms are composed of one or more cells
• B. Cytotechnologists study cells
• C. New cells arise from existing cells
• D. Viruses display all the properties of life outside of a host cell

Hint:

Viruses are often described as being on the "borderline of life" precisely because they are completely inactive outside a host cell but can replicate and evolve once inside. They lack the cellular machinery for independent life.

Answer 1

The Correct Option is D

Step 1: Identifying the Incorrect Statement:
The task is to find the false statement regarding cell theory and viruses.

Step 2: Analysis:
Let's examine each option:

\[\begin{array}{rl} \bullet & \text{1. All organisms are made of cells: This is a core part of Cell Theory, making it correct.} \\ \bullet & \text{2. Cytotechnologists study cells: Cytotechnology uses microscopic cell examination for diagnoses. This is correct.} \\ \bullet & \text{3. New cells come from existing cells: Virchow's "Omnis cellula e cellula" supports this, making it a correct statement.} \\ \bullet & \text{4. Viruses show all life properties outside a host: This is incorrect. Viruses are inactive particles (virions) outside a host and need a host to replicate.} \\ \end{array}\]

Step 3: Conclusion:
The incorrect statement is that viruses exhibit all life properties outside a host cell.