Cells and Human Biology

Structure and Function — How are organisms structured to ensure efficiency and survival?

7.2 — Many organisms, including humans, have specialized organ systems that interact with each other to maintain dynamic internal balance.

7.2.a. All organisms are composed of one or more cells; each cell carries on lifesustaining functions.
7.2.b. Multicellular organisms need specialized structures and systems to perform basic life functions.

C15. Describe the basic structures of an animal cell, including the nucleus, cytoplasm, mitochondria and cell membrane, and how they function to support life.

C16. Describe the structures of the human digestive, respiratory and circulatory systems and explain how they function to bring oxygen and nutrients to the cells and expel waste materials.

C17. Explain how the human musculoskeletal system supports the body and allows movement.