hunger - Answers primarily physiological (internal) drive to find and eat food, mostly regulated
by internal cues to eating
appetite - Answers primarily psychological (external) influences that encourage us to find and
eat food, often in absence of obvious hunger
satiety - Answers a state in which there is no longer a desire to eat; a feeling of satisfaction
nutrients - Answers chemical substances in food that contribute to health,many of which are
essential parts of a diet. They nourish us by providing calories to fulfill energy needs, materials
for building body parts and factors to regulate necessary chemical processes in the body
essential nutrient - Answers substance that, when left out of a diet, leads to signs of poor health.
The body either cannot produce enough of it to meet its needs. If added back to a diet before
permanent damage occurs, the affected aspects of health are restored
stroke - Answers decrease or loss in blood flow to the brain that results from a blood clot or
other change in arteries in the brain. This in turn causes the death of brain tissue. Also called
cerebrovascular accident
carbohydrate - Answers a compound containing carbon, hydrogen, and oxygen atoms. Sugars,
starches, and fibers are forms of this
lipids - Answers compound containing much carbon and hydrogen , little oxygen and sometimes
other atoms. They do not dissolve in water and include fats, oils and cholesterol
protein - Answers food and body compounds made of amino acids; they contain carbon,
hydrogen oxygen, nitrogen and sometimes other atoms in a specific configuration. They contain
the form of nitrogen most easily used by the human body
Vitamin - Answers compound needed in very small amounts in the diet to help regulate and
support chemical reactions in the body
mineral - Answers element used in the body to promote chemical reactions and to form body
structures
water - Answers universal solvents, chemically, h20, the body is composed of 60%
kilocalories (kcal) - Answers is a unit that describes the energy content of food. Specifically, a
kcal is the heat energy needed to rasie the temperature of 1000grams ( 1 liter) of water 1
degree celsius. Referred to as calories
macronutrient - Answers nutrient needed in gram quantities in a diet
micronutrient - Answers nutrient needed in milligram or microgram quantities in a diet
, simple sugar - Answers monosaccharide or disaccharide in the diet
complex carbohydrate - Answers composed of many sugar units (polysaccharide) Ex. glycogen,
starch, and fiber
starch - Answers carbohydrate made of multiple units of glucose attached together in a form
the body can digest; also known as complex carbohydrate
fiber - Answers substances in plant foods not digested by the processes that take place in the
human stomach or small intestine. These add bulk to feces. It is naturally found in foods also
called dietary fiber
cell - Answers structural basis of plant and animal organization. Cells have the ability to take up
compounds from and excrete compounds into their surroundings
bond - Answers linkage between two atoms, such as that formed by the sharing of electrons
enzyme - Answers compound that speeds the rate of a chemical reaction but is not altered by
the reaction. Almost all of these are proteins ( some made of genetic material)
amino acid - Answers building block for proteins containing a central carbon atom with nitrogen
and other atoms attached
chemical reaction - Answers interaction between two chemicals that changes both chemicals
water soluble vitamins - Answers vitamins that dissolve in water. These vitamins are the B&C
vitamins
fat soluble vitamins - Answers vitamins that dissolve in fat such substances as ether and
benzene but not readily in water. These are vitamins A,D,E,K
inorganic - Answers any substance lacking carbon atoms bonded to hydrogen atoms in the
chemical structure
major mineral - Answers vital to health, required in diet in amounts greater than 100 milligrams
per day
trace mineral - Answers vital to health, required in the diet in amounts less than 100 milligrams
per day
electrolytes - Answers substances that separate into ions in water and in turn are able to
conduct an electrical current. These include sodium, chloride, and potassium
solvent - Answers liquid substance in which other substances dissolve
metabolism - Answers chemical processes in the body by which energy is provided in useful
forms and vital activites are sustained