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Why are viruses not considered to be alive? i. They cannot reproduce on th…

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Wize University Biology Textbook > Viruses

Viral Morphology and Diversity

3 Activities

Why are viruses not considered to be alive?
i. They cannot reproduce on their own
ii. They lack the metabolic machinery to provide energy for themselves
iii. They don’t produce enough metabolic waste
iv. They do not have a cell membrane

More Viral Morphology and Diversity Questions:
The HIV virus has an RNA genome but is classified as a retrovirus because viral enzymes reverse transcribe the viral RNA into DNA that inserts into the host genome. A molecule called AZT is a nucleoside mimic often used as an antiviral drug against this step in HIV's replication cycle. Which statement below best describes how HIV might evolve resistance to AZT?
What material is the capsid made out of?
Three main features include
nucleic
acid (DNA or RNA),
capsid
(or the protein shell), and the
envelope
(which is a layer of the membrane - on only some viruses).
Viruses have been shown to be related to cancer when they get incorporated into the genome of host cells. Which of the following is most likely to result in uncontrolled cell growth?
The virus expresses a miRNA that specifically targets a tumor suppressor gene
The virus expresses a gene that activates the host cells survival and proliferation pathway
From Term Test 2 Prep: Why are viruses not considered "alive"?
From Term Test 1 Prep: The HIV virus has an RNA genome but is classified as a retrovirus because viral enzymes reverse transcribe the viral RNA into DNA that inserts into the host genome. A molecule called AZT is a nucleoside mimic often used as an antiviral drug against this step in HIV's replication cycle. Which statement below best describes how HIV might evolve resistance to AZT?
Viral Evolution
Which of the following statements is TRUE regarding the use of antiviral therapies?
Why are viruses not considered to be alive?
i. They cannot reproduce on their own
ii. They lack the metabolic machinery to provide energy for themselves
Put the following in order of size from LARGEST to SMALLEST:
Virus, nucleus, bacteria, eukaryotic cell, ribosome