The discovery of cells Flashcards
1
Q
What is a cell ?
A
a cell is the “ building blocks” of life
2
Q
How big is the typical animal cell ?
A
it is about 10 - 20 um
3
Q
What is used to see a cell ?
A
a microscope
4
Q
Who created the cell theory ?
A
Scientists schwann and Schleiden
5
Q
Name the three points of the cell theory
A
- There are unicellular and multicellular organisms
- This is the smallest basic form of life
- All cells come from cells that have existed before and they split into two , forming a new cell
6
Q
Name the three points of the MODERN cell theory
A
- Energy flows in the cell
- DNA is stored in the cell
- ALL cells have the same chemical composition
7
Q
When was good light microscopes invented ?
A
Early 1900s
8
Q
When was the electron microscope developed ?
A
1940
9
Q
Who invented the microscope ?
A
Anton Von leeuwanhoek and Robert Hooke
10
Q
What did Von Leeuwenhoek describe?
A
bacteria , yeast , blood , sperm ,insects ,ect
