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HNF 150 exam 3
Water and Minerals (major minerals, trace minerals), Food Safety, Nutrition During Pregnancy, Lactation and Infant Nutrition, Infant Feeding.
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Undergraduate 1
12/05/2012

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Term
water makes up what % of your body
Definition
60%
Term
functions of water (6)
Definition
-carry nutrients
-cleanse tissue and blood
-solvent
-lubricant and cushion
-regulate body temp
Term
water balance IN (3)
Definition
liquids, metabolism, food
Term
water balance OUT (3)
Definition
skin, breath, kidneys
Term
how do your senses regulate water balance
Definition
dry mouth
Term
water balance can be regulated by what part of the brain?
Definition
hypothalamus
Term
how does the hypothalamus regulate water balance?
Definition
concentrated blood
thirst signals to brain -> signals to pituitary gland releases hormones to kidneys
Term
what monitors sodium concentrations?
Definition
kidneys
Term
Mild dehydration is what percent or less of your body weight?
Definition
5%
Term
Severe dehydration is more than what percent of your body weight?
Definition
5%
Term
signs of MILD dehydration
Definition
thirst, dry mouth, impaired kidney function
Term
signs of SEVERE dehydration
Definition
pale skin, confusion, shock, seizure, death
Term
water DRI
Definition
men: 13 cups
women: 8 cups
Term
electrolytes are _______ _________ particles that _________ __ ________
Definition
electrically charged, dissolve in water.
Term
function of electrolytes
Definition
move water throughout the body.
Term
iodine is part of what hormone?
Definition
thyroxine
Term
functions of iodine
Definition
BMR, regulate temp and growth
Term
minerals that are electrolytes
Definition
Sodium, Magnesium, Potassium, Chloride, Calcium
Term
iodine deficiency can cause
Definition
goiters
Term
functions of iron
Definition
component in oxygen-carrying cells (hemoglobin, myoglobin), make new cells
Term
this vitamin helps iron absorption
Definition
Vitamin C
Term
this kind of iron is bound to hemoglobin and found ONLY in animal products
Definition
heme iron
Term
kind of iron found in meat, fish, poultry, and plants.
Definition
non heme iron
Term
Recommendations for iron
Definition
men: 8mg/day
women: 18mg/day
pregnant women: 27 mg/day
Term
food sources for iron
Definition
dark leafy greens, cereals, clams, steak, legumes and beans.
Term
what happens for iron deficiency
Definition
absorption increases -> body compensates and uses iron stores -> iron stores are depleted ->unable to make hemoglobin -> anemia (can hurt brain function)
Term
iron toxicity
Definition
increase oxidative stress, liver failure, bone damage, heart disease, diabetes.
Term
symptoms of an iron toxicity
Definition
fatigue, depression, abdominal pain (alcohol abuse damages intestines and can increase damage)
Term
functions of zinc
Definition
works with proteins to help enzymes, make genetic materials, heme, digestive functions, growth development, proper immune function
Term
recommendations for zinc
Definition
men: 11 mg/day
women: 8 mg/day
Term
zinc toxicity
Definition
diarrhea, headaches and fatigue
Term
food source of zinc
Definition
yogurt, porkchops, cereal, beef, crabmeat
Term
functions of selenium
Definition
antioxidant, activates thyroxine, works with vitamin E.
Term
functions of fluoride
Definition
inhibits dental carries
Term
fluoride toxicity
Definition
discoloration of teeth (swallowing toothpaste)
Term
functions of chromium
Definition
works with insulin regulate and release energy from glucose & lipid metabolism
Term
chromium toxicity
Definition
diabetes like symptoms
Term
functions of copper
Definition
forms hemoglobin & collagen, components of several enzymes, releases energy
Term
functions of molybdenum & magnese
Definition
part of an enzyme
Term
most abundant mineral in the body
Definition
calcium
Term
99% of this mineral is found in bones and teeth
Definition
calcium
Term
this mineral plus phosphorus mineralize bone
Definition
calcium
Term
functions of calcium
Definition
nerve transmission, blood pressure
Term
calcium recommendations
Definition
adolescents: 1300 mg
women/men (19-51): 1000 mg
51+: 1200 mg
Term
this kind of exercise maintains bone density
Definition
weight bearing exercise
Term
risk factors for osteoporosis
Definition
early menopause, eating disorders as a teen, Caucasian or Asian, small body frame, family history, certain medications.
Term
sources of calcium
Definition
milk, green veggies, grains, cheese, yogurt, tofu
Term
functions of phosphorus
Definition
in bones and teeth, necessary in ALL body cells, critical buffers, component of DNA and RNA, phospholipids, components of proteins
Term
functions of magnesium
Definition
assists in enzyme function, energy metabolism, K, CA, Vitamin D, protein formation, muscular relaxation.
Term
food sources for magnesium
Definition
soy milk, yogurt, cereals, rich grains, spinach, black beans, avocado.
Term
sodium is ___side of the cell
Definition
OUT
Term
functions of sodium
Definition
acid-base balance, muscle contraction, maintaining fluid & electrolyte balance.
Term
sodium recommendation
Definition
500 mg/day
salt 1.3g/day
Term
potassium is ___side of the cell
Definition
IN
Term
functions of potassium
Definition
maintaining fluid and electrolyte balance, heart
Term
food sources of potassium
Definition
fruits and veggies, milk, POTATOES, fish, honey dew melons.
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