People and Vocab. Flashcards
(20 cards)
Antoni Van Leeuwenhoek
Used a very powerful simple microscope.
First to see a single celled organism.
Robert hooke?
Handmade microscope with three lenses.
Electron microscope
Three d.
Francesco Redi
Proved that spontaneous generation is wrong. Used the three flask experiment.
John needham.
He boiled chicken broth sealed it and waited microorganisms grew.
Lazzaro Spallanzani
Sealed the broth before it was boiled.
Louis pastuer
Used two separate flasks(regular and S bend) boiled both let it sit untill bacteria grew.
Robert Brown.
Identified the nucleus and recognized its importance b/c of size.
MJ Schleidan
Observed that plants were composed of cells. Found that the nucleus was the structure responsible for the development of the remainder of the cell.
What are the main points of cell theory and who is responsible for it.
- All living things are made of one or more cells (schleiden and schwan)
- All life functions take place in cells making smallest unit of life (schleiden and schwan)
- All cells are produced from preexisting cells through the process of cell division(virchow).
Rudolf virchow.
States that all cells arose from preexisting cells.
Law of thermodynamics
Energy cannot be gained or lost
Every energy transfer will always lose energy in the for of heat.
Dalton.
Matter is made up of a bunch of tiny balls.
-billiard model
Thompson
Found electrons negative charges.
- cathrode ray experiment.
- raisin bun.
Rutherford
-proton/positive in one place nucleus.
Bohr
Electrons are different/shells
-electricity to excite electrons give off different colors of light.
Valance.
What is an isotope.
Atom with different #of nuetrons.
Isotope notation
MN
H(element symbol)
AN
MN= protons + neutrons AN= protons.
Albedo?
Percent of incoming solar radiation that a surface reflects.
Climate
Average weather conditions that occur in a region over a long period of time.
