4/26/06
Retrovirus – a virus with RNA and an enzyme reverse transcriptase that copies the virus’s RNA into the host cell’s DNA. (The cell can then enter a lysogenic cycle.)
4/27/06
Wendell Stanley –
· 1st to isolate a virus (1935)
· isolated the tobacco virus
Terms:
1) temperate – virus that does NOT cause disease
2) virulent – virus that causes disease
Prevention:
Vaccination –
a) infected with a weakened, but similar, harmless virus
b) causes your body to build up immunity
Kingdom: Monera (called monerans or bacteria)
a. simplest living things
b. prokaryotic – unicellular – autotrophic or heterotrophic
c. with fungi, bacteria are the main decomposers on earth
Bacterial Groups:
A. Archaebacteria (Oldest type)
Lives in extreme conditions
1. Oxygen-free environments
a. produce methane
b. found in cow’s stomach, deep sea, swamp, sewage treatment plants.
2. concentrate salt water
a. produce purple pigment for photosynthesis
b. found in Great Salt Lake, Dead Sea, and evaporating salt pond
3. Hot, acidic, sulfur springs
B. Eubacteria
1. Heterotrophs (found everywhere)
a. decomposers (Saprobe) – recycle dead organic material
b. parasites – feed off of living organisms
2. Photosynthetic autotrophs (Cyanobacteria or Blue-green algae)
a. common in ponds, streams, moist areas of land
b. contains the pigment chlorophyll a.
c. exists as chains of cells.
3. Chemosynthetic autotrophs
a. get energy from breaking down chemicals (sulfur & nitrogen)
b. important part of the nitrogen cycle. Fix nitrogen from the atmosphere
4/26/06
Retrovirus – a virus with ______and an ___________reverse transcriptase that copies the virus’s RNA into the host cell’s DNA. (The cell can then __________ a _________________ _____________.)
4/27/06
_____________ _________________ –
· 1st to isolate a ___________ (1935)
· isolated the ______________ virus
Terms:
1) _________________– virus that does NOT ______________ ______________
2) _______________– virus that causes disease
Prevention:
Vaccination –
a) infected with a ____________________, but ________________, ________________ _______________
b) causes your body to build up ____________________
Kingdom: Monera (called monerans or bacteria)
a. _______________ living things
b. prokaryotic –_________________ – autotrophic or heterotrophic
c. with fungi, bacteria are the ____________ ______________________ on earth
Bacterial Groups:
A. Archaebacteria (Oldest type)
Lives in _________________ conditions
1. ______________-______________ environments
a. produce _______________
b. found in cow’s _______________, deep sea, _____________, sewage treatment plants.
2. ______________________ salt water
a. produce purple _______________for ___________________________
b. found in Great _________ ________, Dead Sea, and evaporating salt pond
3. Hot, ____________, ____________ springs
B. Eubacteria
1. ______________________ (found everywhere)
a. ________________________ (Saprobe) – recycle ____________ organic material
b. _________________ – feed off of _________________ organisms
2. ___________________________ autotrophs (Cyanobacteria or Blue-green algae)
a. common in ponds, streams, ___________ areas of land
b. contains the ______________ _______________ __
c. exists as _______________ of cells.
3. ___________________________ autotrophs
a. get energy from ___________________ _______________ _______________(sulfur & nitrogen)
b. important part of the __________________ ______________. Fix nitrogen from the atmosphere