Virus review 2.1
Card Set Information
Virus review 2.1
Review of viruses for quiz
A ____________is a small, nonliving particle that invades and reproduces inside a living cell.
What is a virus called that waits for a while before taking over a cell's functions?
Viruses are so small that they are measured in ________________________.
Organisms that live on or in a host and cause harm to the host are called _____________.
Once inside a cell, the ____________takes over the cells functions. New viruses are then assembled.
The shape of proteins allows the viruses coat to ______________to, or lock onto, certain cells in the host.
Viruses vary widely in ______________. Some are round, while others are rod-shaped. Others are bricklike or threadlike.
After entering a cell, an __________virus immediately goes into action.
Like keys, a virus's proteins only fit into certain "__________," or proteins, on the surface of a host's cells.
A ______________________is a virus that infects bacteria.
A _____________is a disease that is mild and makes people sick for a short time before they recover.
No organisms are ____________from viruses.
What two parts of humans bodies does a cold virus affect?
the nose and throat
The coat of a virus is made of ____________.
Because viruses are not alive, scientists do not use ______________________ to name them.
A cold sore is an example of a __________ virus.
The only way in which viruses are like organisms is in their ability to ___________.
Scientists are putting viruses to use in a new technique called ____________________.
A __________is a living thing that provides a source of energy for a virus or organism.
What are the two basic parts of a virus?
1. protein coat for protection
2. inner core made of genetic material
Biologists consider viruses to be nonliving because viruses are not cells. They do not use energy to __________ or _______________.
or respond to their surroundings
Viruses cannot make or take in ________ or produce _____________.
food or energy
What four ways do scientists name viruses?
1. after the scientist that discovered them
2. after the organism that the virus infects
3. after the place the virus was discovered
4. after the disease they cause