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Multiple Choice
Which characteristic of viruses distinguishes them from cells in the context of organic chemistry?
A
Viruses have a nucleus containing DNA.
B
Viruses can perform metabolic processes independently.
C
Viruses contain ribosomes for protein synthesis.
D
Viruses lack a cellular structure.
Verified step by step guidance
1
Understand the basic structure of viruses: Viruses are composed of genetic material (either DNA or RNA) surrounded by a protein coat, and sometimes a lipid envelope. They lack the complex cellular structures found in living cells.
Compare viruses to cells: Cells have a defined cellular structure, including a nucleus (in eukaryotes), organelles, and the ability to perform metabolic processes independently. Viruses do not have these features.
Analyze the options given: The first option states that viruses have a nucleus containing DNA, which is incorrect as viruses do not have a nucleus. The second option suggests that viruses can perform metabolic processes independently, which is also incorrect as they rely on host cells for metabolism.
Evaluate the third option: It claims that viruses contain ribosomes for protein synthesis. This is incorrect because viruses do not have ribosomes and rely on the host cell's machinery for protein synthesis.
Conclude with the correct characteristic: The correct distinguishing feature of viruses in the context of organic chemistry is that they lack a cellular structure, which is a fundamental difference from cells.