Summary openstax anatomy and physiology test 1

openstax anatomy and physiology test 1openstax anatomy and physiology test 1 Characteristics of Life Cells, reproduce, use energy, have different levels of organization Homeostasis the state of steady internal conditions maintained by living things. Feedback Anything that deviates sends off warning signals- to maintain homeostasis levels of organization Chemical, Cellular, Organ, Organ System, Organism parietal Around organ visceral Pertaining to internal organs Atomic number Number of protons in an atom subatomic particles Particles found within the atom, mainly protons, neutrons, and electrons. carbon 6 C hydrogen 1 H nitrogen 7 N oxygen 8 O phosphorous 15 , P sulfur 16 S sodium 11 Na potassium 19 K calcium 20 Ca chlorine 17 Cl isotopes Atoms of the same element that have different numbers of neutrons. cation A positively charged ion anion A negatively charged ion bonds Bonds can bend, stretch, and rotate without breaking. ionic A chemical bond resulting from the attraction between oppositely charged ions. polar covalent A covalent bond in which electrons are not shared equally covalent A chemical bond formed when two atoms share electrons organic compound Compounds that contain carbon water A liquid made of hydroden and oxygen. h20 cavities Spaces within the body that help protect, separate, and support internal organs anatomy Branch of science dealing with the form and structure of body parts physiology Processes and functions of an organism ph acids and bases ph scale measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 (Very Acidic) to 14 (Very Basic) (H2O is neutral at 7) types of energy heat, sound, light, magnetism, mechanical, electric, chemical, nuclear glucose A simple sugar that is an important source of energy. complex carbohydrates A carbohydrate composed of many molecules of C6H12O6 joined together, (polysaccharides) includes starch, glycogen, fiber lipids Energy-rich organic compounds, such as fats, oils, and waxes, that are made of carbon, hydrogen, and oxygen. amino acids Building blocks of protein