true/false
All viruses cause disease.
False.
Not all viruses cause disease; some viruses can exist in the body without causing obvious symptoms.
What does the Latin word «virus» mean?
Poison
naked
impossible to examine with the naked eye
viruses carry out metabolic functions such as taking nutrients and releasing wastes to survive
false
How are viruses different from bacteria?
They do not have a cellular structure and organelles, cannot reproduce independently, do not have their own metabolism, and are not susceptible to antibiotics
Tobacco
The existence of viruses was proved in experiments with tobacco
viruses contain DNA and RNA
false
viruses contain either DNA or RNA
What are vaccines composed of?
damaged/weakened virus particles
19
covid-19
Antibiotics are effective in treating viral infections
false
What is a latent virus?
A virus that remains dormant for a long time.
bacteria
bacteriophages
Taking amounts of Vitamin C will boost your immune system and protect you from viral infections.
false
Overdosing on vitamin C doesn't even stop you getting the common cold
What types of viruses are capable of transforming RNA to DNA?
Retroviruses
8%
8% remnants of the virus genome is in human genome