1. Epithelial Cells form Epithelial Tissue
Structure:
Epithelial Cells pack tightly together and form continuous sheets that line different parts of the body.
Function:
Protection, secretion, absorption, and transport
Examples:
Inside the mouth (cheek cells)
Line organs like the stomach
Surround the outside of organs
Make the outer layer of skin

2. MUSCLE TISSUE Structure: Function: Examples:
Muscle cells make specialized tissue that can contract.
Muscle tissue contains the specialized proteins actin and myosin that slide past one another.
Function:
Allows for movement of limbs and contraction.
Examples:
Heart – Cardiac Muscle
Body Movement—Skeletal Muscle
Digestive Tract, Veins/Arteries, Bladder—Smooth Muscle

3. NERVE TISSUE Structure: Function: Elongated cells with many branches.
Has the ability to generate and conduct electrical signals in the body.
These signals are managed by the brain and transmitted down the spinal cord to the body.

4. White Blood Cell Structure: Function: Examples: Large, flexible cells
Covered in proteins that recognize invaders.
Function:
Part of your immune system.
Fight off bacteria and other invaders.
Examples:
Neutrophils – engulf bacteria
Basophil – Release histamine to promote and inflammatory response.

5. Red Blood Cell Structure: Function: Round, disc-shaped cell
Concave center
Function:
Transport oxygen throughout the body.

6. Plant Leaf vs. Plant Stem
Contains Guard Cells that open and close to allow for gas exchange
Lined with Chloroplasts
Stem
Contain Xylem and Phloem that carry food and water up the stem of the plant.