Intro To Micro Flashcards
Bacteria has
A structure in its cell called peptidoglycan
What is the”domain of life”?
Bacteria- cyanobacteria and heterotrophic bacteria
Archaea- halophiles and thermophiles
Eukaryotes- (seen with the naked eye) plants- animals- fungus. (Not seen with the naked eye) chromists- aveolates- rhodophyles- flagellates- basil protists
Botulism
Clostridium botulinum
1 mL of seawater has
50 million viruses
Coccus
Round (circular)
Fungi
Eukaryotic, Uni or Multi Cellular
Yeast- unicellular
Mushrooms and mold- multi cellular
They reproduce sexually or asexually
Spirilium
Spiral
1 g of soil has
1 million species of bacteria
Eukaryotes have
True nucleus
Flagella
Long filmented appendage
Cilia
Short filmented appendage
Psuedopods
Means “false foot”. They ooze forward and push a cell into its place
It’s considered living if it has…
- cell- homeostasis (distinction from inside/outside of cell)
- reproduces
- grows and develops
- assimilation
- has genetic material
Size of Viruses
Are super tiny and can only be seen by an electron microscope (10-300 nm) 1 m = 1000 mm 1 mm = 1000 micrometers 1 micrometer = 1000 nano meters so...10 to the -9 is 0.000000009 m
Microbes include:
viruses, yeast, molds, bacteria, fungi
Fungi can be beneficial:
Mushrooms
Bacillus
Rod shaped
Bacteria has been around for:
3.5 Billion years
The typical human has:
10-100 Trillion cells
Humans have been around for:
10,000 years
We study microbes because
Microbes rule the world!
Algae
Derives from the sun (photosynthesis) and it releases oxygen into the environment
Prokaryotic organisms have
No nuclei
The earth has been around for:
4.6 Billion years