Physiology Test Questions and
Answers.
Matter - Answer -anything that occupies space
-exists as a solid, liquid, or gas
Mass - Answer amount of matter a substance contains
Weight - Answer force of gravity acting on a mass
Energy - Answer capacity to do work
Potential Energy - Answer Inactive or stored energy
Kinetic Energy - Answer energy of motion
Forms of energy: - Answer radiant, electrical, heat, chemical, and mechanical
Elements - Answer ALL forms of matter are composed of...
Chemical Symbols - Answer letter abbreviations that are given to elements
What make up 96% of body weight? - Answer Oxygen (O)
Carbon (C)
Hydrogen (H)
Nitrogen (N)
What make up 98.5% of body weight? - Answer Oxygen (O)
Carbon (C)
Hydrogen (H)
Nitrogen (N)
Calcium (Ca)
Phosphorus (P)
, Atoms - Answer units of matter of all chemical elements
Nucleus - Answer contains protons and neutrons, and electrons that move about in energy
levels
Atomic Mass - Answer sum of an atom's protons, neutrons, and electrons
Atomic Number - Answer total number of protons and electrons in an atom's nucleus
Mass Number - Answer total number of protons and neutrons
Isotopes - Answer different atoms of an element that have the same number of protons but
different number of neutrons
Radioisotopes - Answer unstable and emits radiation that can be monitored with radiation
detectors
Shells - Answer specific atomic regions where electrons tend to spend most of the time
revolving around the nucleus of an atom
Valence Shell - Answer outermost shell
Molecule - Answer two or more atoms combine in a chemical reaction
Compound - Answer substance that can be broken down into two or more different elements
by chemical means
Chemical Bonds - Answer atoms of a molecule are held together by forces of attraction
Ionic Bonds - Answer outer-energy-level electrons are transferred from one atom to another.
the transfer forms ions, whose unlike charges attract each other and form ionic bonds
Cations - Answer -positively charged ions that have given up one or more electrons
-"electron donors"