UPDATED QUESTIONS AND CORRECT
ANSWERS
nutrition - CORRECT ANSWER✅✅the study of function and interaction of nutrients, and
the processes by which the body uses them
what makes a nutrient essential - CORRECT ANSWER✅✅required for growth, required
for regulation of body processes, required for repair of body tissue
greatest component of a chemical analysis of food - CORRECT ANSWER✅✅water
an organic compound can be defined as: - CORRECT ANSWER✅✅a substance or
molecule containing carbon
a nutrient deficiency can be detected in its earliest stages by - CORRECT
ANSWER✅✅lab tests of urine and blood samples
what is the best method for obtaining diet info for a large nutrition survey? - CORRECT
ANSWER✅✅food frequency
the 6 major classes of nutrients - CORRECT ANSWER✅✅carbohydrates, lipids (fats),
protein, vitamins, minerals, and water
T/F a food composition table can be used to determine the amount of iron actually absorbed
by the body from a serving of liver consumed - CORRECT ANSWER✅✅False
what nutrient source yields more energy than 4 kcalries per gram - CORRECT
ANSWER✅✅fats (plant fats specifically)
what is an example of a micronutrient - CORRECT ANSWER✅✅iron
what is the ADMR for fat - CORRECT ANSWER✅✅20-35%
what is the ADMR for carbs? - CORRECT ANSWER✅✅45-65%
what is the ADMR for protein? - CORRECT ANSWER✅✅10-35%
what is an example of an anthropometric measurement? - CORRECT ANSWER✅✅body
weight or height
what type of deficiency is caused by inadequate absorption of a nutrient? - CORRECT
ANSWER✅✅secondary
, a case-control study is carried out to determine the relationship between diet and colon
cancer. the results indicate that subjects with high cholesterol intake have 30% higher risk of
cancer. Does this result mean that dietary cholesterol causes colon cancer? - CORRECT
ANSWER✅✅no not necessarily. it may be a case of guilt by association (the real cause
may not be cholesterol but some other food component associated with cholesterol); also may
be some error in diet assessment
an epidemiological study reveals that populations whose members consume diets low in
cereals have high incidence of prostate cancer. does this result mean that cereals prevent
prostate cancer? - CORRECT ANSWER✅✅no not necessarily. may be guilt by
association (the real cause of is inversely associated with cereals); also may be sources in
assessment or prostate cancer reports
discuss advantages and disadvantages of anecdotal studies as means of investigating the
dietary causes of disease - CORRECT ANSWER✅✅anecdotal studies may allow
recognition of relationships between diets and disease but only if they involve a large number
of reports or similar symptoms; in many cases these studies are too individual and can lead to
other areas of research but not form concrete details
why do intervention studies use control groups? why are they given placebos? - CORRECT
ANSWER✅✅control groups ensure that treatment is actually causing observed changes;
placebo is given to counter the placebo effect (the tendency of patients reporting to feel better
after any sort of treatment)
what is the meaning of a double-blind experiment? - CORRECT ANSWER✅✅neither
subjects nor researchers know which subjects are in the control or experimental group
what is the benefit of using a large sample size in an experiment? - CORRECT
ANSWER✅✅the effect of chance variation is minimized
before publication in a reputable journal, what must the findings of a study undergo? -
CORRECT ANSWER✅✅a peer review
the RDAs for protein, vitamins, and minerals are based on: - CORRECT ANSWER✅✅the
needs of most healthy people
the RDA for energy is based on: - CORRECT ANSWER✅✅the average requirement
the EARs can be appropriately used in: - CORRECT ANSWER✅✅the planning of a
school lunch program
milk and milk products contribute significant amounts of: - CORRECT
ANSWER✅✅calcium
Canada's food guide recommends that adults 19-50 years of age have how many servings of
milk and alternatives? - CORRECT ANSWER✅✅2 servings