scientists Flashcards
(11 cards)
1
Q
Aristotle
A
- Used observations and accurate record taking
- used reasoning and interpreting
2
Q
Hans and Zachariah Jansen
A
- compound microscope
- 20x magnification
3
Q
Robert Hooke
A
- 3 lens
- investigated cork
- coined the term cell
4
Q
Antoni Van Leeunwenhoek
A
- was the first to see movement in microscope
- produced higher magnifications
- 250x
- allowed for clear movements and observations
5
Q
Francesco redo
A
- wasn’t convinced of spontaneous generation
- recognized need to control variables
6
Q
John Needham
A
- boiled chicken broth and put it in a sealed container but organisms still grew
- this proved that there was a life force responsible for spontaneous generation
7
Q
Lazaro spallanzi
A
- disagreed with John needham
- proposed that there were micro organisms in the air that were responsible for growth of organisms
- because of his failed attempt at his experiment, spontaneous generation was still accepted
8
Q
Robert brown
A
- first to discover the nucleus in orchid study
- first to say that nucleus was important
9
Q
Mj schleiden and theodore schwann
A
- all plants and animals are made of cells
- cells are a basic unit of all organisms
10
Q
Rudolf Virchow
A
All cells arise only from pre existing cells
11
Q
Louis Pasteur
A
Controlled variables: broth, flask, light, temp
Manipulated: access to dust
Responding: ability to grow dust
Proved spontaneous generation is fake