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Questions and Answers
What is the primary component found in the core of a virus?
Viruses can reproduce independently without the host cell.
False
What structures do viruses lack that are found in cellular organisms?
Nucleus, cytoplasm, mitochondria, or ribosomes
Viruses are classified as __________ intracellular parasites.
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Match the following terms with their descriptions:
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Study Notes
Virus Characteristics
- Viruses are microscopic organisms, requiring an electron microscope for observation.
- Viruses are composed of a core containing either DNA or RNA surrounded by a protein coat.
- Some viruses possess an outer lipoprotein membrane, known as an envelope.
- Viruses lack organelles such as a nucleus, cytoplasm, mitochondria, and ribosomes.
- Viruses are incapable of generating energy or synthesizing their own proteins, requiring host cells for replication.
- Viruses are obligate intracellular parasites, meaning they can only reproduce within living cells.
- Viruses do not engage in binary fission or mitosis as a method of replication.
- A single virus can produce hundreds of progeny viruses, while a cell only divides to produce two daughter cells.
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Description
This quiz delves into the fundamental characteristics of viruses, including their structure, replication process, and their dependence on host cells. Test your understanding of how viruses differ from living organisms and discover their unique nature as obligate intracellular parasites.
