Download Specialized Cells, Tissues and Organs

Specialized Cells, Tissues
and Organs
Section 2.5 p. 120-125
Section 1.3 p. 93-96
Learning Outcome
examine plant and animal structures;
and identify contributing roles of cells,
tissues and organs
Role of the Cell
Individual Cells are limited in the size they become
-The processes of Osmosis and Diffusion are only effective over small
distances
In order to ensure the survival of the species (unicellular or multicellular), cells
must reproduce
-This is done by creating a copy of the genetic information, and then dividing
into two smaller identical copies
-This occurs with all of your body cells, but depending on the type of cell will
occur at different rates (epithelial cells need to reproduce at a rate fast
enough to replenish the 50,000,000 skin cells you lose everyday)
Multicellular Organisms and Specialized Cells
-Although all cells in an organism contain the same genetic information, they
display different traits, based on their function in the organism (skin cell vs. muscle
cell
-Red Blood Cells: function is to carry Oxygen to the cells, and remove CO2
waste products to the lungs
-Lose their nucleus upon maturation (can’t divide like normal cells)
-Rely on the Bone Marrow (connective Tissue to produce new cells)
Animal Tissue
Type of Tissue
Role in the Body
Examples
Connective
Tissue
Supports and connects different parts of the body
(i.e. bone to muscle). Is the most diverse tissue
Blood, Fat, Cartilage,
Bone, Tendons
Epithelial Tissue
Protection, Sensory, Transportation, Absorption
Covers surfaces of the body
Skin, Lines the body
cavities (i.e. stomach)
Nervous Tissue
Makes up our sensory system, allows different body Brain, Spinal cord,
parts to communicate with one another
Nerves
Muscle tissue
Allows you to move
Cardiac (heart),
Striated (muscles),
Smooth (walls of
organs)
Plant Tissues
Type of Tissue
Function in the Plant
Plant Organ where
found
Photosynthetic Tissue
Uses sunlight to produce sugar
Leaves
Storage Tissue
Store energy produced
Stem, and Roots
Protective Tissue
Waterproof the plant, provide
protection
Leaves, Roots, Stem
Transport Tissue
Tube like cells with hollow centers
Phloem- food, Xylem- water
Leaves, Roots, Stem
Organization of the Body