LEAVING CERT BIOLOGY VIRUSES Flashcards
some information is too long so it has to be read in the book
what do viruses consists of
they consists of an outer protein coat and a strand of nucleic acid, either DNA or RNA
why are viruses not considered cells
viruses are not cells as they do not have membranes or any cell organelles. they do not carry out normal metabolic reactions
what are viruses not included in
the five kingdoms of living things
what are viruses on the border of
the border between living and non living
name the three main shapes of viruses
rod-shaped, round/polyhedral and complex
why are viruses called obligate parasites
viruses enter a host cell and use the energy and organelles of the host to produce new viruses
are viruses able to be grown on agar
viruses are not able to be grown on agar
viruses can grow inside a live host. yes or no
yes
viruses do not reproduce themselves. what do they do
viruses replicate
what do you use two view viruses
an electron microscope
give an example of a rod shaped virus
tobacco mosaic virus
give two examples of round or polyhedral shaped viruses
influenza or mumps
give an example of a complex shaped virus
T phage virus
name two drugs that have been developed to interfere with viral replication
interferon and acyclovir
