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All forms of life can have their cells invaded by viruses. When viruses take over plant or animal cells, we call this a viral infection. Several human infectious diseases, some of which are chronic diseases, are caused by viral infection. Using full sentences, explain how viruses infect cells and how the infection spreads to other cells in an organism.

All forms of life can have their cells invaded by viruses. When viruses take over plant or animal cells, we call this a viral infection. Several human infectious diseases, some of which are chronic diseases, are caused by viral infection. Using full sentences, explain how viruses infect cells and how the infection spreads to other cells in an organism.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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14.23) All forms of life can have their cells invaded by viruses. When viruses take over plant or animal cells, we call this a viral infection. Several human infectious diseases, some of which are chronic diseases, are caused by viral infection. Using full sentences, explain how viruses infect cells and how the infection spreads to other cells in an organism. YOUR ANSWER SHOULD BE SOMETHING LIKE THIS: Viruses infect cells by introducing their DNA or RNA and, in some cases, a few types of enzymes, into the host cell. This is done in various ways depending on the particular virus. Once the viral DNA or RNA is introduced to the host cell, enzymes, nucleic acids, and amino acids from the host cell are employed to make more viral DNA or viral RNA, and viral proteins. The viral DNA or RNA and viral proteins are reassembled into multiple, new virus particles within the host cell. These new viral particles cause the host cell to burst or release the viral particles using the exocytosis process. The infection spreads as the new viruses infect other cells.
Transcribed Image Text:14.23) All forms of life can have their cells invaded by viruses. When viruses take over plant or animal cells, we call this a viral infection. Several human infectious diseases, some of which are chronic diseases, are caused by viral infection. Using full sentences, explain how viruses infect cells and how the infection spreads to other cells in an organism. YOUR ANSWER SHOULD BE SOMETHING LIKE THIS: Viruses infect cells by introducing their DNA or RNA and, in some cases, a few types of enzymes, into the host cell. This is done in various ways depending on the particular virus. Once the viral DNA or RNA is introduced to the host cell, enzymes, nucleic acids, and amino acids from the host cell are employed to make more viral DNA or viral RNA, and viral proteins. The viral DNA or RNA and viral proteins are reassembled into multiple, new virus particles within the host cell. These new viral particles cause the host cell to burst or release the viral particles using the exocytosis process. The infection spreads as the new viruses infect other cells.
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