1. Structure & Function of Cells
Cell Theory
Structure & Function of Cells

2. Cell Theory
The cell theory states that (1) all living things are made of cells; (2) cells are the basic units of structure and function in living things; and (3) living cells come only from other living cells.

3. The Microscope
The invention of the microscope made it possible to discover cells.
Robert Hooke used to discover cells.

4. Structures and Functions of Cells
Cell wall gives protection and support to the plant cells.

5. Structures and Functions of Cells
The cell membrane regulates the movement of materials into & out of the cell.

6. Structures and Functions of Cells
Nucleus is the control center of the cell

7. Structures and Functions of Cells
Mitochondria are the “powerhouse” of the cell.

8. Structures and Functions of Cells
Chloroplast capture the energy from the sun and uses it to make food for the plant cell.

9. Structures and Functions of Cells
Vacuoles store food, water, and waste.

10. Structures and Functions of Cells
Endoplasmic Reticulum
Rough ER makes proteins
Smooth ER makes lipids

11. Structures and Functions of Cells
The packaging center of the cell
Prepares lipids and proteins for shipment across the membrane
The Golgi Apparatus

12. Structures and Functions of Cells
Lysosomes digest excess or worn-out organelles, food particles, and engulf viruses or bacteria.
The Waste Management Center of the Cell

13. Heart Cells Pumping

14. Cell Processes
The sum of all the activities that occur in a living cell is called metabolism.

15. Cell Processes
In aerobic respiration, energy is released from food with the help of oxygen.

16. Cell Processes
Food, oxygen, water and other materials enter and leave the cell by a process called diffusion.

17. Cell Processes
Water passes through the cell membran e by a type of diffusion called osmosis.

18. Cell Processes
Mitosis is the division of the nucleus and the cytoplasm and the duplication of the chromosomes.

19. T-Rex Blood Cells