2. Cell Physiology: Cell Structure And Function

3. Identify and explain the various cell processes that take place with regards to cell boundaries. 1. Explain the cell theory and the researchers contributions. 2. Distinguish between prokaryotes and eukaryotes. Describe the anatomy & physiology of all cell components. Objectives

4. If you unraveled all your chromosomes from all your cells, the strands would stretch from Earth to Moon ~ 6,000 times

6. 1. Robert Hooke – 1665 – English scientist – Observed cork under microscope

7. Cork Activity Cork oak tree

9. It reminded him of small rooms in which monks lived…so he named them... He said cork consisted of “great many little boxes”. CELLS

10. 167418381665 Robert HOOKE Anton van LEEUWENHOEK *created lenses (275x) *first to observe living organisms *observed bacteria and sperm cells (animalcules) *father of microbiology Matthias Jakob SCHLEIDEN * botanist *cell theory - all plant parts are made of cells *very odd man; shot himself in the head; saved by a friend and lived to study cells

11. 18551839 Theodor SCHWANN *cell theory - all living things are composed of cells *set foundation of modern histology Rudolf Ludwig Karl VIRCHOW *cell theory - all cells come from preexisting cells *father of pathology *created a standard procedure for autopsies Life is Cellular

13. Video from: http://ed.ted.com/lessons/the-wacky-history-of-cell-theory

14. 1. All living things are composed of cells 2. Cells are the basic units of structure and function in all living things. 3. ALL cells come from preexisting cells.

15. 1.SHAPE – The shape of the cell is based on the function the cell needs to perform. Structure = Function Different types of cells have different shapes.

17. *

18. 2. SIZE – Cells vary in size from macroscopic to microscopic Cell Size Demo: See lab handout

19. Size examples Ostrich egg What is the largest cell??? The smallest cells = bacteria Microscopic cells Macroscopic cells

20. 3.INTERNAL ORGANIZATION: cells contain organelles to organize their inside material Organelles= tiny organs

22. prokaryote Eukaryote

23. Prokaryotes vs. Eukaryotes Chart Fill in what you know with a partner. Have at least 5 points for each and an example. You may use your notes and textbook.