Eubacteria
What kind of bacteria does Domain Eubacteria contain?
What makes Archaebacteria different from Eubacteria?
When someone says "germ" what 4 things could they be referring to?
1. Bacteria 2. Viruses 3. Protists 4. Fungi
Why do we study small things like bacteria and cells?
Look at the poster on the wall! The small things are important and point us to other things that are unseen (like God)
Are bacteria prokaryotic or eukaryotic?
Prokaryotic (they don't have a nucleus)
How are bacteria classified?
By shape
What makes methanogens unique?
What is germ theory of disease? What are the names of the scientists who came up with this theory?
The idea that germs (things you cannot see) can make you sick
Louis Pasteur and Robert Koch
Briefly describe Louis Pasteur's experiment that helped prove germs exist
Swan neck flask experiment. Boil broth in swan neck flask, lets it sit and no bacteria growth. Then breaks neck and lets sit and gets bacteria growth. If bacteria have food and air they will grow!
Are viruses alive according to the 6 characteristics of life?
No. They do not grow, develop, or reproduce and are not made of cells
What are the 3 main bacteria shapes and what shapes do they represent?
cocci=spherical
Baccili/bacillus=rod shaped
Spirilum=spiral
What makes halophiles unique?
They live in salty conditions and they produce osmoprotectants to keep the water inside of them
Why is malaria considered an endemic?
An endemic is when the number of cases is constant due to the environment. The mosquito that causes malaria lives in certain parts of Africa which makes the levels of infection constant
What did Louis Pasteur and Robert Koch contribute to Germ Theory of Disease?
Pasteur: That germs exist
Koch: That germs make us sick (are the cause)
What is the name of how bacteria reproduce? What are the 4 steps of this process?
What shape and arrangement is this bacteria: staphylobacillus
A bunch/bundle of rod shaped bacteria
What makes extremophiles unique?
They live in really hot or cold temperatures (like at the bottom of the ocean) and they have different cellular structures/proteins that allow them to survive in these temperatures
When does a sickness become an outbreak?
A sickness becomes an outbreak when the level of cases exceeds the number expected
What is the difference between correlation and causation?
Correlation: A coincidence, when two events happen at the same time
Causation: When one event brings about the beginning of another event
If you are sick with a virus, what is happening inside of you?
If you are sick with a virus, it means the virus is using your cells machinery to replicate itself. The virus attaches to your cell, enters, replicates and assembles itself, and breaks the cell to attach to more cells.
How was yogurt discovered?
A man was carrying milk in a pouch and when it got warm, bacteria grew and thickened it
What is a greenhouse gas?
A gas that traps heat in our atmosphere. Methane is an example.
What are 2 limits to Koch's postulates
1. Viruses cannot be cultured
2. If an organism is immune to the pathogen, they won't become sick when exposed to it
Is this situation a demonstration of correlation or causation?
Every time my family has pizza for dinner it is sunny the next day
Just correlation, not causation since the two events just happen at the same time
Explain Robert Koch's experiment and his 4 postulates that established causation between germs and cow sickness