Biology Final Viruses and Bacteria
Terms
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- 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