3. Carry out major processes for bio-geochemical cycles (Recycling! inroganic->organic material)
4. Can live in places unsuitable for other organisms
(Resilient)
5. Other life forms require microbes to survive
(others depend on them)
How many bacterial cells are in a colony?
a. 1000 b. 1,000,000 c. 10 d. 10,000,000
How many bacterial cells are in a colony?
a. 1000
b. 1,000,000
c. 10
d. 10,000,000
2 mm
What are the characteristics of living things?
1. 2. 3.
4. 5. 6.
What are the characteristics of living things?
1. Eat (metabloism)
2. Grow/Reproduce
3. Evolve
4. Move
5. Differentiate
6. Communicate
Name the two ways cells behave?
1.
2.
Name the two ways cells behave?
1. As catalyists: carrying out chemcial reactions
2. As coding devices: (making proteins)
When did blue green algae (cyanobacteria) come about?
3.8 billion years ago!!!
When did plants come about?
600 million years ago!!!
or
.6 x 109 yrs ago
When did humans come about?
What did cyanobacteria excrete?
Oxygen
Life on Earth timeline
Earth level Homeostatsis- environment on microbe Microbe Evolution/microbial growth
Resources (nutrients) and environmental conditions controll?
Diversity and Abundance
Earth level Homostatasis- Mircobe on environment
Microbial communities affect?
The physical and chemical properties of their habitats
Microbial communities have?
different microbe species
Bacteria type:
Red=
Green=
Bacteria type: Nitrifing bacteria sewage
Red= ammonia (NH3) oxidizers
Green= nitrite (NO2-) oxidizers
Name of the first cell?
LUCA
(last universal common ancestor)
The number of microbes in the world approximately is?
5 x 1030 cells
Where can you find microbes?
In almost any environment, but MOST are found in oceans and terrestrial subsurfaces
TRUE/FALSE
The greater number of microbes are benefical rather than harmful
True
TRUE/FALSE
There are more harmful microbes than benefical ones
False
How do microbes benefit humans?
1. Bioremediation (pollution clean up)
2. Biofuels
3. Agriculture (fertilize soil through nitrogen fixation)
4. Medicine (gene therapy, drug/protein production)
For microbial based foods, what are the negative and positive impacts?
Negative: can require specialized preservatives
Postive: fermentation
1. Makes alcohol
2. Leavens bread
3. Perservation technique-> to create lactic acid in sour foods such as sauerkraut, dry sausages, kimchi and yogurt, or vinegar (acetic acid) for use in pickling foods.
