Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Cell Types & Tissues August 22, 2011 Objective • Define cell, tissue and relate the structure of the following to their functions Key Vocab • • • • • • • • Tissue Ciliated Cell Root Hair Cell Xylem Vessels Muscle Cells Red Blood Cells Organs Organ Systems 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 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 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 Ciliated Cells 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 Root Hair Cell 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 Xylem Vessel Muscle Cells • skeletal muscle cells found in muscles attached to our skeleton • voluntarily controlled • function: contraction Muscle Cells 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 Red Blood Cells Organs • An organ is a structure made up of a group of tissues, working together to perform specific functions Organ Systems • An organ system is a group of organs with related functions, working together to perform body functions