APHY 101 midterm Q&A
anatomy - =study of structure
physiology - =study of function
levels of organization - =cell, tissue, organ, organ system, organism
characteristics of life - =movement, responsiveness, growth, reproduction, respiration, digestion,
absorption, circulation, assimilation, excretion
requirements of life - =water, food, oxygen, heat, pressure
homeostasis - =process by which organisms maintain a relatively stable internal environment
homeostatic mechanism - =process that maintains critical body functions within a narrow, fixed
range
matter - =anything that takes up space and has mass
element - =pure substance that consists entirely of one type of atom
atom - =the basic unit of a chemical element.
structure of an atom - =protons, neutrons, electrons
nucleus - =control center of a cell
proton - =positive charge
, neutron - =no charge
electron - =negative charge
covalent bond - =a bond formed when atoms share one or more pairs of electrons
ionic bond - =the attraction between oppositely charged ions
hydrogen bond - =weak attraction between a hydrogen atom and another atom
synthesis reaction - =two or more substances combine to form another substance
decomposition reaction - =a reaction in which a single compound breaks down to form two or
more simpler substances
exchange reaction - =chemical reaction in which bonds are both made and broken
reactant - =a substance that takes part in and undergoes change during a reaction.
product - =A substance produced in a chemical reaction
catalyst - =substance that speeds up the rate of a chemical reaction
acid - =any compound that forms H+ ions in solution
base - =a compound that produces hydroxide ions in solution
anatomy - =study of structure
physiology - =study of function
levels of organization - =cell, tissue, organ, organ system, organism
characteristics of life - =movement, responsiveness, growth, reproduction, respiration, digestion,
absorption, circulation, assimilation, excretion
requirements of life - =water, food, oxygen, heat, pressure
homeostasis - =process by which organisms maintain a relatively stable internal environment
homeostatic mechanism - =process that maintains critical body functions within a narrow, fixed
range
matter - =anything that takes up space and has mass
element - =pure substance that consists entirely of one type of atom
atom - =the basic unit of a chemical element.
structure of an atom - =protons, neutrons, electrons
nucleus - =control center of a cell
proton - =positive charge
, neutron - =no charge
electron - =negative charge
covalent bond - =a bond formed when atoms share one or more pairs of electrons
ionic bond - =the attraction between oppositely charged ions
hydrogen bond - =weak attraction between a hydrogen atom and another atom
synthesis reaction - =two or more substances combine to form another substance
decomposition reaction - =a reaction in which a single compound breaks down to form two or
more simpler substances
exchange reaction - =chemical reaction in which bonds are both made and broken
reactant - =a substance that takes part in and undergoes change during a reaction.
product - =A substance produced in a chemical reaction
catalyst - =substance that speeds up the rate of a chemical reaction
acid - =any compound that forms H+ ions in solution
base - =a compound that produces hydroxide ions in solution
