Homeostasis
What does homeostasis mean?
A state of balance
Are viruses alive? Why would some students get confused about this?
They are not alive. Students get this confused because the virus contains DNA.
Who was Robert Koch?
A scientist who studied germs
What is taxonomy?
Sorting and naming organisms
How many domains are there? What are they?
BAE! Bacteria, Archaea and Eukarya
Do plants maintain homeostasis?
Yes! For example, they open and close pores in their leaves to regulate the amount of water content.
what are the 2 parts of a virus?
DNA and Capsid
Which animals did Robert Koch work with?
Cows and Mice
Is taxonomy used to name plants, animals or bacteria?
Taxonomy is used to name all living organisms
What are the two things that all 3 domains have in common?
A cell membrane and DNA
What does the word "Regulate" mean?
Control. For example, the body regulates homeostasis. The body "controls" an inner balance.
What is another name for the Flu Shot?
Influenza vaccine
Which disease did Koch study?
Anthrax. A bacterial infection caused by the bacteria Bacillus anthracis.
What is taxonomy based on?
A plant's and animal's DNA
What does unicellular mean? What does multicellular mean?
Unicellular means single-cell organism. Multicellular means an organism is made up of many (multi) cells.
To let something continue. For example, I maintain my energy levels by drinking a lot of coffee
What is a vaccine?
A vaccine is an inactive virus. Your body creates antibodies against the inactive virus. This makes the human immune to the virus. You cannot be immune to a vaccine.
What is Germ theory?
the scientific theory that microorganisms, or "germs", cause disease by invading living hosts
Which 2 taxons are used in the scientific naming of an organism?
Genus and species
What is an autotroph? What is an example.
A organism that makes its own food. Example: a plant or protist makes its own food through photosynthesis.
pupil dilation, body temperature and breathing fast when you exercise to get more oxygen to your body
3 famous viruses
Rhinovirus (common cold), HIV, and the flu (influenza)
How did Koch prove germ theory?
Cows had anthrax infection. He drew their blood. The blood had anthrax bacteria in it. He injected this bacteria into healthy mice. The healthy mice became sick with anthrax. This proved that germs cause disease.
How can you tell if two organisms are closely related?
The more taxons they have in common
What is a heterotroph?
An organism that gets energy from absorption.