CELLS AND VIRUSES
By: Gabriel Mekonnen
Cell
Viruses
Influenza Virus
HIV Virus
Bacteriophage
Lytic and Lysogenic
The lytic cycle is one of the two cycles of viral reproduction, the other being the lysogenic cycle. The lytic cycle results in the destruction of the infected cell and its membrane. Lysogeny is characterized by integration of the bacteriophage nucleic acid into the host bacterium's genome or formations of a circular replicon in the bacterium's cytoplasm.
Characteristics of Life
Questions
1. Describe the typical structure of a virus. What is a virus made of? What biomolecules
would you find in a virus?
A: Biomolecules-> Protein. Structure= head(capsid), collar, core, sheath, baseplate, and tail fibers.
2. Discuss the different ways viruses gain entry into a cell.
A: By attaching to a cell after infection, then injection of DNA/RNA
3. Explain why the Ebola virus would not infect a tobacco plant.
A: Because the Ebola virus only attacks animal cells.
4. Name five viruses and the type of cell that they attack.
A: Influenza- animal
Ebola-animal
Measels-animal
Bacteriophage- bacteria
HIV- animal
5. You have been diagnosed with the flu. Explain why a doctor will not provide you
with a prescription for antibiotics in order to cure your infection.
A: Because antibiotics won't affect a virus.