10 Questions
What is a characteristic of viruses' multiplication process?
It is a complex process
How do viruses differ from prokaryotes in terms of sensitivity to antibacterial antibiotics?
Viruses are sensitive to antibacterial antibiotics
What is the composition of a virus' capsid?
Capsomeres
How are the size of viruses currently estimated?
By electron microscopy
How does the size of the smallest parvovirus compare to the largest protein molecule haemocyanin?
The smallest parvovirus is as small as the largest protein molecule haemocyanin
What is the general property of viruses in terms of cellular organization?
Do not have a cellular organization
What is the characteristic method of multiplication for viruses?
Multiply by a complex process
Who crystallized virus-like chemicals in 1935?
Stanley
What is the range of diseases caused by viruses?
From minor ailments like common cold to terrifying diseases like rabies and AIDS
What is the size of the smallest parvovirus compared to?
As small as the largest protein molecule haemocyanin
Study Notes
Virus Characteristics
- Viruses multiply by taking over the host cell's machinery to replicate themselves.
Sensitivity to Antibiotics
- Viruses are insensitive to antibacterial antibiotics, unlike prokaryotes.
Viral Structure
- A virus' capsid is composed of proteins that protect the viral genome.
- The capsid is made up of repetitive subunits of proteins.
Size of Viruses
- The size of viruses is estimated using electron microscopy or filtration methods.
- The size of the smallest parvovirus is comparable to the size of the largest protein molecule, haemocyanin.
Cellular Organization
- Viruses lack cellular organization and are not considered living cells.
Multiplication Method
- Viruses multiply by infecting host cells, replicating their genome, and assembling new virions.
Discovery
- Wendell Stanley crystallized virus-like chemicals in 1935, showing that viruses have a crystalline structure.
Disease Range
- Viruses cause a wide range of diseases, including common colds, influenza, and serious diseases like AIDS and Ebola.
Test your knowledge on the general properties of viruses and prokaryotes with this quiz. Learn about their cellular organization, multiplication process, and diseases they cause.
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