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WorksheetsViruses STAAR Review
Total questions: 8
Worksheet time: 16mins
A student produces a labeled drawing of a virus for a presentation. The student states that a capsid has a function similar to the nuclear membrane found in animal cells.
Which of these describes the similar functions of capsids and nuclear membranes?
Both transport proteins throughout the structures.
Both provide energy for activities in the structures.
Both protect genetic information for the structures.
Both code for the proteins needed for the reproduction of the structures.
In 1898 Friedrich Loeffler and Paul Frosch found evidence that the cause of the highly contagious hoof-and-mouth disease in livestock was a microscope infectious particle. It was discovered that this particle requires a host cell to reproduce.
Which pathogen is most likely responsible for causing hoof-and-mouth disease in livestock?
a bacterium, because it is contagious
a fungus, because it infects livestock
a protist, because it is microscopic
a virus, because it requires a host cell to reproduce
Which of these describes a difference between viruses and cells?
Cells contain protein, and viruses contain only carbohydrates.
Viruses have flagella, and cells have only cilia.
Cells reproduce independently and viruses require a host to reproduce.
Viruses have membranes
The human immunodeficiency virus (HIV) often infects and destroys CD4 T-cells. These CD4 T-cells are one of many kinds of white blood cells that are an important part of the immune system, which protect the body.
The most common danger related to the destruction of CD4 T cells is -
an increase in the risk of high blood pressure
an increase in the threat of diseases caused by microorganisms and viruses
a decrease in the flow of blood to vital organs
a decrease in the amount of oxygen being transported to issues.
The picture shows a 3D model of a virus called a bacteriophage. Bacteriophages can infect bacteria such as E.coli.
In what way are the bacteriophage and E.coli alike?
they contain antibodies
they reproduce by mitosis
they have identical genomes
they lack membrane-bound organelles
Materials are provided to students to build models of a prokaryotic cell, a eukaryotic cell, and a virus. The materials and the structures they represent are listed in the table shown.
Which material will students use in all three models?
Yellow paper oval
Gray paper hexagon
Blue yarn
Purple buttons
A diagram of an HIV infection is shown.
Which Conclusion about the HIV infection of a host cell is best supported by the diagram?
It takes place outside of living cells.
It relies on the host to reproduce.
It involves the process of meiosis.
It requires carbon dioxide.
An illness caused by a certain virus includes fever, rash, joint pain, red eyes and headache. The virus is transmitted to people by infected mosquitoes. Symptons quickly occur within three to twelve days after contracting the virus. There is no vaccine for this virus.
Which description best explains the reproductive cycle of this virus?
Lytic, because the virus is transmitted by mosquitoes.
Lysogenic, because there is no way to vaccinate against it.
Lytic, because of the quick incubation time.
Lysogenic, because the virus causes a fever.
