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NTR 401 Exam 1 Questions with Complete Solutions
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NTR 401 Exam 1 Questions with Complete Solutions
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NTR 401 Exam 1 Questions withComplete Solutions
What year did McCollum Osborne, and Mendel develop a new approach to the search
for vitamins as well as the discovery of additional essential amino acids, such as lysine,
sulfur-containing amino acids, and histidine? - Answer-1910
The AI, or adequate intake, is a recommendation used when - Answer-there are
insufficient data to establish the EAR
Nutrients that are defined as "conditionally essential" are: - Answer-not synthesized in
adequate amounts in specific populations
The DRI guideline that meets the nutrient intake needs of 97-98% of the population is -
Answer-RDA
Which of the following is NOT included in the list of essential nutrients for humans
described by Alfred Harper? - Answer-phytonutrients
What is included:
- amino acids
- vitamins, fatty acids, and minerals
- energy sources (CHO, fat, and protein)
- water
In contrast to RDAs, the DRIs now include "non-classical nutrients". An example of a
non-classical nutrient is: - Answer-cholesterol
Of the numerous trace or ultratrace elements, which two have the strongest evidence
for essentiality? - Answer-Boron and Chromium
The RDA is greater than the average requirement for all nutrients except - Answer-
Energy
What was the name of the dietary guidance first published for American consumers in
1941 to prevent nutrient deficiencies? - Answer-Recommended Dietary Allowance RDA
The subcommittees charged with determining DRIs followed a common "road map" so
that the different committees would address the evaluation of different nutrients the
same way. Which of the following concepts is LEAST likely to be found in the "road
map" guidelines for the committees? - Answer-Create a new system that will determine
the exact requirement of every individual in a population
Most likely:
, - provide systematic evidence-based reviews of the literature on each nutrient
- address ways to deal with uncertainty in data such as the requirement or the intake of
a population
- use a set of consistent endpoints for the required intake of the nutrients
The LEAST LIKELY source of variation in predicting the percentage of a population that
might not meet their nutrient requirement when given a recommended nutrient intake
from a planned diet is - Answer-the completely different types of endpoints for
determining adequacy for nutrients that have an RDA compared to those that have an
AI
Most likely:
- the variation in the requirements for the nutrient of the different individuals within the
population
- the differences among the true intakes of different individuals within the population
- the inaccuracy in measuring the nutrient intake of an individual in the population, i.e. a
one-day recall compared to a long-term average
Match the following hormones with their tissue of origin
1. ghrelin
2. leptin
3. glucagon-like-peptide 1 (GLP-1)
4. cholecystokinin
5. insulin - Answer-1. stomach
2. fat cells
3. ileum or jejunum (L-cells)
4. duodenum
5. pancreas (beta-cells)
Which of the following statements illustrate a nutrient whose EAR or AI is based on the
amount stored in the tissues? - Answer-The AI for vitamin D is based on the serum 25-
OH cholecalciferol
The region of the brain that integrates the signals controlling food intake is - Answer-
arcuate nucleus of the hypothalamus
The central nervous system integrates appetite, hunger and satiety signals that come
from ALL of the following organ systems EXCEPT - Answer-skeletal system
they do come from:
- auditory and visual systems
- adipose tissue
- GI system
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