1. Cell Types & Tissues August 22, 2011

2. Objective Define cell, tissue and relate the structure of the following to their functions

3. Key Vocab Tissue Ciliated Cell Root Hair Cell Xylem Vessels Muscle Cells Red Blood Cells Organs Organ Systems

4. Cell Basic unit of structure and function of all living things Cell Theory All living things are made up of cells Cells are the basic unit of structure and function in living things All cells come from pre-existing cells

5. Tissue tissue is made up of a group of cells with similar structures, working together to perform a shared function Different tissues contain specialized cells to perform specific functions of that tissue

6. Ciliated Cells Commonly found in the respiratory tract Contain cilia, microscopic hair like projections on the surface of the cell that sweep fluids or particles away Function: movement

7. Ciliated Cells

8. Root Hair Cell cells found near to the tip of the roots of plants. Most water enters the root through them. The thin hair-like extension of each cell gives a large surface for water to enter across. Function: absorption

9. Root Hair Cell

10. Xylem Vessel xylem is a type of vascular tissue found in plants two major functions: – the conducting of water and mineral salt from root to leaves, –to provide mechanical strength (support) to the plant body. Function: conduction & support

11. Xylem Vessel

12. Muscle Cells skeletal muscle cells found in muscles attached to our skeleton voluntarily controlled function: contraction

13. Muscle Cells

14. Red Blood Cells Travel through your blood vessels delivering oxygen and removing wastes Appear red because they contain hemoglobin that binds oxygen for transport function: transport

15. Red Blood Cells

16. Organs An organ is a structure made up of a group of tissues, working together to perform specific functions

17. Organ Systems An organ system is a group of organs with related functions, working together to perform body functions