SCIENCE 2ND QUARTER: HISTORY OF CELL THEORY Flashcards
1
Q
What are Cells?
A
- the basic unit of life
- most cannot be seen with eyes
- all living oraganisms have it
2
Q
Who is Zacharias Janssen?
A
- invented first compound microscope by putting two lenses in tube
3
Q
Who is Robert Hooke?
A
- English scientist
- made a simple microscope and looked at a cork
- saw small, box-shaped structures, he called cellulae
- coined term “cell”
4
Q
Who is Anton van Leeuwenhoek?
A
- Dutch scientist
- was inspired by a book written by Hooke
- saw living organisms
5
Q
Who is Matthias Schleiden?
A
- German scientist
- studied plant tissue and discovered plants are made of cells
6
Q
Who is Theodor Schwann?
A
- German scientist
- Studied animal tissue and discovered animals are made up of cells
7
Q
Who is Rudolph Verchaw?
A
- Prussian physician
- discovered all cells are made from the division of other cells
8
Q
What is Classical Cell Theory?
A
- All living things are made up of cells
- Cells are basic units of function and structure
- Cells come from preexisting cells
9
Q
What is Modern Cell Theory?
A
- DNA is passed between cells during cell divison
- Cells within a similar species are mostly the same, chemically and structure-wise
- Energy flow occurs within cells
