1 / 15

The Cell Theory

The Cell Theory. CELL THEORY. A theory resulting from many scientists’ observations & conclusions. CELL THEORY 1. The basic unit of life is the cell . ( Hooke ).

saddam
Download Presentation

The Cell Theory

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Cell Theory

  2. CELL THEORY • A theory resulting from many scientists’ observations & conclusions

  3. CELL THEORY1. The basic unit of life is thecell. (Hooke) • In 1665, an English scientist named Robert Hooke made an improved microscope and viewed thin slices of cork viewing plant cell walls • Hooke named what he saw "cells"

  4. CELL THEORY2. All living things are made of1 or more cells. • Matthias Schleiden(botanist studying plants) • Theodore Schwann(zoologist studying animals) stated that all living things were made of cells Schwann Schleiden

  5. CELL THEORY3. All cells divide & come from oldcells. (Virchow) Virchow

  6. COMPARING CELLS • The size & shape of a cell relates to its function. (job it does)

  7. What do all cells have in common?

  8. COMMON CELL TRAITS • A cell is the smallest unit that is capable of performing life functions.

  9. CELL MEMBRANE • Outer covering, protective layer around ALL cells • For cells with cell walls,the cell membrane is inside the cell wall • Allows food, oxygen, & water into the cell & waste products out of the cell.

  10. CYTOPLASM • gelatin-like inside cell membrane • constantly flows • aka protoplasm

  11. ORGANELLES • Many different types!

  12. DNA • All cells have DNA (Deoxyribonucleic Acid) • It’s the cells genetic material. • In other words it is what makes up the cell, and gives it the ability to reproduce.

  13. 2 Types of Cells

  14. Prokaryotic Cells(proh KAYR ee yah tihk) • No Nucleus • cells without membrane-bound structures • EX: bacteria pond scum

  15. Eukaryotic Cells(yew KAYR ee yah tihk) • Has a Nucleus • cells with membrane-bound structures • EX: animals, plants, fungi and protists

More Related