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NSC 170 exam 1 questions with actual answers.
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NSC 170 exam 1 questions with actualanswers.
Six classes of nutrients ANS - carbohydrates, fats, proteins (these 3 provide calories), vitamins,
minerals, water
carbohydrates ANS - supplies energy to brain cells, nervous system, blood, and muscles during exercise
grains, fruits, veggies
fats/lipids ANS - supplies energy, insulates and cushions organs, assists vitamin absorption
animal, veggies
proteins ANS - formation of muscles, bone, blood, enzymes, some hormones, cell membranes, tissue
repair, regulates water/acid balance
meat, fish, poultry, eggs, dairy, legumes, nuts
vitamins ANS - promotes chemical reactions in cells
fruits, veggies, grains, meat, dairy
organic molecules
minerals ANS - regulates body functions, assists growth, catalysts for energy release
found in most food groups
inorganic, elements from periodic table, body structures
water ANS - provides a medium for and transports chemical reactions, regulates temperature, removes
waste, 50-70% of body weight
needed in the largest quantity
, diseases that have a relationship with diet ANS - heart disease, cancers, strokes and diabetes mellitus
nutrients ANS - life-sustaining chemicals in food that are necessary for proper body functioning
nutrition ANS - study of nutrients and how the body uses it
diet ANS - usual pattern of food choices
risk factors ANS - personal characteristics that increases a person's chances of developing a disease
lifestyle ANS - way of living that includes diet, physical activity habits, use of tobacco and alcohol, and
other typical patterns of behavior
where does food energy come from? ANS - indirectly from the sun, sun energy stored as glucose
(carbs) in plants, animals eat plants and we eat the animals
energy yielding nutrients ANS - carbs, fats, proteins (macronutrients)
alcohol yields energy but NOT a nutrient
kilocalories/calories for nutrients ANS - carb- 4cal/g
fat- 9cal/g
protein- 4cal/g
alcohol 7cal/g
nutrients that contain carbon are ANS - organic
metabolism ANS - all chemical reactions in living cells
-energy generation
-protein production
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