Multiple Choice
Which of the following components are considered parts of the lac operon in E. coli?
1. A Review of General Chemistry
Intro to Organic Chemistry
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Which of the following statements best explains why viruses are not considered alive in the context of organic chemistry?
A
Viruses can replicate independently without a host cell.
B
Viruses can evolve over time, similar to living organisms.
C
Viruses are composed of proteins and nucleic acids, which are organic molecules.
D
Viruses do not have a cellular structure and cannot carry out metabolic processes on their own.
Verified step by step guidance1
Understand the definition of life in the context of organic chemistry, which typically includes characteristics such as cellular structure, metabolism, growth, reproduction, and response to stimuli.
Recognize that viruses are composed of proteins and nucleic acids, which are indeed organic molecules, but this alone does not qualify them as living organisms.
Consider the fact that viruses cannot replicate independently; they require a host cell to reproduce, which is a key distinction from living organisms that can reproduce on their own.
Acknowledge that while viruses can evolve over time, this characteristic alone does not make them alive, as evolution is a process that can occur in non-living systems as well.
Identify the critical point that viruses lack a cellular structure and cannot carry out metabolic processes independently, which are essential criteria for being considered alive in organic chemistry.
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