Lesson 1.1 Flashcards
what are the 3 principles of cell theory?
1) Every living organism is made up of one or more cells.
2) The cell is the fundamental unit of life.
3) Cells come from pre-existing cells.
what are the 4 General Functions of the cell?
1) Regulation of internal environment
2) Responsiveness to its environment
3) Protection and support
4) Acquisition and utilization of energy
this is the organism’s ability to keep a constant internal state
homeostasis
this is stored in the bonds present in food molecules, and it will be converted by cells into more usable forms
chemical energy
(1585-1632) he invented the primitive microscope
Zacharias Janssen
(1635-1703) he observed cork cells under a microscope
Robert Hooke
(1626-1697) he disproved the spontaneous generation theory
Francesco Redi
(1632-1732) he observed microorganisms by using his own partial microscope
Anton Von Leeuwenhoek
(1804-1881) he proposed that all plants are made of cells
Matthias Schleiden
(1810-1882) he proposed that all animals are made of cells
Theodor Schwann
(1821-1902) he proposed that cells come from pre-existing cells
Rudolf Virchow