Lec2 Flashcards
1
Q
What is the size of eukaryotic cells and bacterial cells
A
Eukaryotic cell 10-100um
Bacterial cells 1-10um
2
Q
What is the main characters of microscopy
Bright field microscopy
Electron microscopy
A
Bright : stains can be used ; living cells; limited resolution-0.2um
EM: limited resolution-2nm ; cannot view living cells; ultra structure
3
Q
Cell theory (3’)
A
All living organisms are composed of cells
Cells are the basic units of life
Cells are arises from presexisting cells
4
Q
Observation based science
Hypothesis based science
A
Inductive. From specific to general
Deductive. From general to specific
