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14 Cards in this Set

  • Front
  • Back
what is a virus?
particles of nucleic acid, protein and lipids
how do viruses reproduce
by infecting living cells
what is a virus usually made of?
a DNA or RNA core surrounded by a protein coat
what is a prokaryote
unicellular organisms lacking a nucleus
wat is the lytic cycle?
the cycle under which a virus enters a cell, makes copies of itsself, and causes the cell to burst
what is the lysogenic cycle?
cycle in which a host cell copies the virus indefinitely, the virus integrates its DNA into the DNA of hte host cell, and viral genetic information replicates with cell's DNA
what are cocci, bacilli, and spirilla?
cocci-spherical prokaryotes, bacilli- rod shaped prokaryotes, and spirilla- corkscrew shaped prokaryotes
what is symbiosis
interaction between 2 different organisms, typically to the benefit of them both
What are heterotrophs and autotrophs?
heterotrophs: need to obtain food
Autotrophs: make their own food
what is a capsid
a virus's protein coat
what are HIV and AIDS
HIV= Human immunodeficiency Virus
AIDS=Acquired immunodeficiency Syndrome
what is a pathogen
disease causing agents
what is a toxin
poisons that some bacteria reease
what is conjugation
process by which genetic information between 2 bacterial cells and genetic information is shared