CELL THEORY

WHO’S WHO?BrownDujardinKollikerLeeuwenhoekPurkinjeSchleiden & SchwannVirchow

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LEEUWENHOEK

LEEUWENHOEK

-was able to observe tiny animals called,

“animalcules”

BROWN

Discovered the presence of NUCLEUS within the cells

DUJARDIN

-French biologist-SARCODE = gelatinous

fluid in the cell

PURKINJE

-coined the word PROTOPLASM

LIVING MATERIALS in the cell

SCHLEIDEN & SCHWANN

- plants and animals are composed of cells

KÖLLIKER

- Coined the term CYTOPLASM

VIRCHOW

-”omnis cellula e cellula”

=“cells divide and form new cells”

THEN WHAT IS A CELL THEORY???The cell theory states that:1.ALL living things are made up of cells.2. The cell is the FUNDAMENTAL unit that

gives the structure and function of life.3. Cells come from the DIVISION of

preexisting cells.

KEY ROLES AND FUNCTION OF CELLS

1. The ENERGY of organism is formed in the cells.

ATPAdenosine triphosphate

KEY ROLES AND FUNCTION OF CELLS

2. Organisms can be made of one or more cells.

3. DNA, which is the blueprint of life, can be replicated (copied) and passed from cell to cell through cell division.

MITOSIS

KEY ROLES AND FUNCTION OF CELLS

4. An organism carrying certain chemical compositions of cells is the same with the species where it belongs.

KEY ROLES AND FUNCTION OF CELLS

5. The activities in an organism are dependent on the activities done by its cells.