ANSWERS
1. What are the six levels of organization in the body?: atom, molecule, macro-
molecule, organelle, cell, tissue, organ, system of organs, and organism
2. The necessary life function that protects our internal environment from
our external environment is provided by what system?: Integumentary system
3. The function of movement is provided by what system?: Muscular system
4. The function of responsiveness is provided by what system?: Nervous sys-
tem
5. The function of digestion is provided by what system?: Digestive system
6. What is anabolism?: The building of muscle from obtained proteins and nutrients
7. What is catabolism?: The process of breaking down molecules to form simpler
ones for energy
8. Excretion involves what system?: Urinary system
, 9. The reproductive system is controlled by what other system?: The endocrine
system
10. Which tissue covers the body surface and lines the cavities of the body?-
: Epithelial tissue
11. What are the three steps in cellular respiration?: Glycolysis, Citric Acid
Cycle, and Electron Transport Chain
12. What is the purpose of ATP?: ATP is a form of energy
13. Epithelial cells perform what types of functions?: Protection, secretion, ab-
sorption, filtration
14. What are the four basic tissue types?: Epithelial, Muscle, Connective, Ner-
vous
15. Toward or at the body surface is known as what direction?: Superficial
16. Away from the body is what direction?: Deep
17. Between a more medial and a more lateral structure is what orientation?-
: Intermediate
18. Toward or at the midline of the body or on the inner side of is
what direction?: Medial