Chapter 1- The Science Of Biology Flashcards
What does Bio mean
What does Olgy mean
Life
The study of
What is a hypothesis
An educated guess that might be true. It must be testable
A null hypothesis
A statement that if true would disprove your original hypothesis. Every good hypothesis must have a null hypothesis attached
Theory
A hypothesis that has been validated or tested
Scientific law
A theory that continues to be true over many years
Ideology
A set of beliefs or standards that shade how a person thinks
Redi’s experiment
He came up with a hypothesis that maggots on meat came from flies. He tested it by covering some meat and leaving another piece uncovered. The uncovered piece got maggots and the covered piece didn’t. Therefore his hypothesis was true
Louis Pasteur
Father of microbiology
The first to really understand microbiology
Who was pasteurization named after and explain it
Louis Pasteur
Farmers collect contaminated milk Bc there is feces on utters. To fix this they take the milk to a dairy and put it in a tank. They heat the tank so the milk almost boils and then they let it cool. The heat kills 95% of bacteria. So now the milk lasts longer.
What experiment led to pasteurization
It was pastures and it was when he figured out that if he heated broth to kill bacteria and let it sit nothing would grow if he used a container with a special neck that stopped dust from entering. Dust has bacteria not air alone. His work greatly extended the life of humans
Requirements for all living things
Made up of cells, reproduce, are all based on a universal generic code (DNA), grow and develop, obtain and use materials/energy, respond to environment, maintain a stable internal environment, and change over time
DNA
Controls much of your personality
Homeostasis
Homeo=same
Stasis=not changing
Your body must maintain this
What is the shape of veins in leaves called
Venation
What are the three types of venation
Parallel, branched, and midrib
