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Viruses use their host's metabolic enzymes and some viruses mutate very quickly so they can easily become resistant to drugs.
Viruses are almost biologically inert until they infect a cell.
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An reaction is an induced effect that is the exact opposite of that which was therapeutically intended?
A reaction that is the exact opposite of what was therapeutically intended is a paradoxical reaction.
Why cant every virus infect every living cell?
Viruses are target specific
Why do plant viruses have a difficult time entering the cells they infected?
Plant viruses have a difficult time entering the cells they infect partly because plant cells are surrounded by tough cell walls that viruses alone cannot break through; however, once inside a plant they can multiply and spread rapidly.
One compound extracted from the adrenal gland of animals and is used therapeutically?
Cortisone
Why it is difficult to isolate drugs effective against eukaryotic microorganisms and viruses?
To find defenses against a eukaryotic microorganism is difficult because we are eukaryotic organisms and any attack on the cell of the microorganism can be an attack against our own cells. This requires a subtle approach. Viruses have no metabolism, are not really living and do not reproduce without a host. So, they leave little open to attack in their simplicity.
What is an induced effect that is the exact opposite of that which was therapeutically intended?
A paradoxical effect is one that is the opposite of that which was therapeutically intended.
How can some viruses be helpful?
Some viruses target bacteria or fungi, which can be harmful to humans. These viruses are called "bacteriophages" or sometimes just "phages".
What kingdown do most plants and animals belong to when difficult to classify?
lichens, corals, viruses, corals, viruses and carnivourous plants are difficult to classify :)
Why viruses are difficult to classify as living organisms?
It is because viruses are not made up of cells
An reaction is an induced effect that is the exact opposite of that which was therapeutically intended?
A reaction that is the exact opposite of what was therapeutically intended is a paradoxical reaction.
Why is it difficult to identify computer viruses?
Because you are an idiot
Explain why viruses are so difficult to combat?
Viruses are so difficult to combat because they are very good at assuming control of cells and multiplying themselves to spread and produce toxins.
What is dilautin prescribed for?
It is listed therapeutically for seizure disorder.
How could viruses be helpful?
Some viruses target harmful organisms. For example, bacteriophage viruses kill bacteria. Other viruses might kill mosquitoes or weevils or other harmful insects without hurting any other species.
Why cant every virus infect every living cell?
Viruses are target specific
What is a commonly used cholinesterase inhibitor that is used therapeutically?
atropine
What are some long words that begin with the letter T?
therapeutically
