Viruses Flashcards
Non-cellular
No organelles or metabolism outside their host
Capsule / capsid
Made of protein
Obligate parasites
Only multiply inside living cells
When it is outside of cell it is non living as it does’t have characteristics of life
Shapes of viruses
Rod shape : Tobacco mosaic virus
Round : Herpes, influenza
Complex : HIV, rabies
Viral replications
Attachment + insertion
Entry
Synthesis
Assembly
Release
Advantages of viruses
Genetic engineering
Mosaic pattern give new variety to garden plants
Control of bacterial infections
Disadvantages of virus
Measles
Mumps
Sars
Warts
Rabies
Bacteriophage
virus that infects a bacterium
AIDS
Acquired Immune Deficiency Syndrome
Disorder in which the person cannot make antibodies due to infection with HIV
Disables helper T-cells, which results in the person unable to produce antibodies
Causing person to be unable to resist infections
Retroviruses
Have a protein coat, RNA and an enzyme to cnvert RNA to DNA
