Week 1 Nfs284 Test Questions with All
Actual Answers.
Canada's Food Guide - Answer a guideline developed with 4 food groups (grain, milk /alt, veg
& fruit, meat /alt)
Canadian Healthy Eating Index CHEI - Answer - measures how well Canadians adhere to the
2007 Food Guide
- closer to 100, better
high intake in canadians - Answer - salt, sugars, sat fat
- sugar increases risk of obesity
- salt increases risk for heart disease and stroke
essential nutrients - Answer - essential and provided by diet
- not biosynthesized in sufficient quantity
-deficiency could result in death but adding back the nutrients will reverse the effect
macronutrients - Answer - carbohydrates, proteins, and fats
basal metabolism - Answer - macronutrients provide energy to fuel basal metabolism
(maintaining life at rest)
- carbs/fat will usually support but excess protein can also be a source
unit of energy - Answer - Kcal
- calories (not scientific)
- kilojoules
atwater numbers - Answer - 4 kcal/g carb
- 9 kcal/g lipid
- 4 kcal/g protein
- 7 kcal/g alcohol
- numbers reflect amount of energy
lipid structure - Answer - ester of 3 fatty acids and 1 glycerol molecule
, - can be solids (lard, wax) or liquid (oils) depending on the fatty acid chains
unsat. fatty acids - Answer - double bonds
- reduces risk of cardiovascular disease
- in canola/olive/soybean oil
monounsat. fatty acids (mufas) - Answer - one double bond
- oleic acid in olive oil
polyunsat. fatty acid (pufas) - Answer - two double bonds
- in canola/soybean oil
two essential pufas - Answer - <18 C
- linoleic acid (omega- 6)
- alpha-linolenic acid (omega-3) such as flaxseeds
long chain omega 3 fatty acids - Answer - epa
- dha
- 20 or 22 C chain
- can be synthesized/converted from the essential (a-linolic) fatty acid or dietary (fish)
- reduce risk of cardiovascular disease
sat. fatty acids - Answer - in animal source
- risk of disease
trans fatty acids - Answer - partially hydrogenated vegetable oils, margarines, and shortening
- banned from Canadian food supply
digestible carbohydrates - Answer - starch
-sugars
- breakdown to monosaccharide glucose
glucose - Answer - source of energy for cells, esp brain
- circulating in blood
Actual Answers.
Canada's Food Guide - Answer a guideline developed with 4 food groups (grain, milk /alt, veg
& fruit, meat /alt)
Canadian Healthy Eating Index CHEI - Answer - measures how well Canadians adhere to the
2007 Food Guide
- closer to 100, better
high intake in canadians - Answer - salt, sugars, sat fat
- sugar increases risk of obesity
- salt increases risk for heart disease and stroke
essential nutrients - Answer - essential and provided by diet
- not biosynthesized in sufficient quantity
-deficiency could result in death but adding back the nutrients will reverse the effect
macronutrients - Answer - carbohydrates, proteins, and fats
basal metabolism - Answer - macronutrients provide energy to fuel basal metabolism
(maintaining life at rest)
- carbs/fat will usually support but excess protein can also be a source
unit of energy - Answer - Kcal
- calories (not scientific)
- kilojoules
atwater numbers - Answer - 4 kcal/g carb
- 9 kcal/g lipid
- 4 kcal/g protein
- 7 kcal/g alcohol
- numbers reflect amount of energy
lipid structure - Answer - ester of 3 fatty acids and 1 glycerol molecule
, - can be solids (lard, wax) or liquid (oils) depending on the fatty acid chains
unsat. fatty acids - Answer - double bonds
- reduces risk of cardiovascular disease
- in canola/olive/soybean oil
monounsat. fatty acids (mufas) - Answer - one double bond
- oleic acid in olive oil
polyunsat. fatty acid (pufas) - Answer - two double bonds
- in canola/soybean oil
two essential pufas - Answer - <18 C
- linoleic acid (omega- 6)
- alpha-linolenic acid (omega-3) such as flaxseeds
long chain omega 3 fatty acids - Answer - epa
- dha
- 20 or 22 C chain
- can be synthesized/converted from the essential (a-linolic) fatty acid or dietary (fish)
- reduce risk of cardiovascular disease
sat. fatty acids - Answer - in animal source
- risk of disease
trans fatty acids - Answer - partially hydrogenated vegetable oils, margarines, and shortening
- banned from Canadian food supply
digestible carbohydrates - Answer - starch
-sugars
- breakdown to monosaccharide glucose
glucose - Answer - source of energy for cells, esp brain
- circulating in blood
