The Cell Membrane They both surround and protect Provide a barrier against foreign invaders. Respiratory Circulatory Protection of vital organs Support Structure, Framework, Shape The Cytoplasm They both circulate and move materials within the organism The Lysosome – breaks down food The mitochondria – breaks down nutrients to release energy Movement. Integumentary System Excretory System Delivers nutrients to the cells Delivers Oxygen to the cells Reproductive System Nervous System Filter waste out from the blood. Circulatory System Endocrine System The nucleus It controls the activities of the cell just like the brain controls the activities of the body Bones Protects against pathogens and provides a barrier Brings Oxygen into the blood.