DHN 101 Exam 1 UPDATED Actual
Questions and CORRECT Answers
Jillian drinks a couple of beers and smokes over a pack of cigarettes daily. Even though she's
about 40lbs overweight, she likes to wear tight-fitting clothes. Based on this info, Jillian has a
high risk of developing ____? - CORRECT ANSWER✔✔- gastroesophageal reflux disease
Which of the following statements is true? - CORRECT ANSWER✔✔- Older adults
generally have fewer taste buds than children
Which of the following statements is true? - CORRECT ANSWER✔✔- Most enzymes have
names that end with -ase.
Which of the following substances participates in a chemical reaction that results in the
digestion of fat? - CORRECT ANSWER✔✔- Gastric lipase
The primary function of the cardiovascular system is - CORRECT ANSWER✔✔- circulation
of blood throughout the body
Last night Sara ate French fries, fried fish, and creamy cole slaw. For dessert, she had a
chocolate milk shake. About an hour after eating this food, she suddenly complained of
severe abdominal pain. Based on this information, Sara probably has - CORRECT
ANSWER✔✔- gallstones
A molecule forms when two or more atoms are attracted to each other and held together by -
CORRECT ANSWER✔✔- bonds
Paisley usually has four bowel movements each week. Based on this info, Paisley should -
CORRECT ANSWER✔✔- not worry, because she is not constipated
The ____ is the second segment of the small intestine - CORRECT ANSWER✔✔- jejunum
A food has a pH that is higher than the pH of pure water but lower than the pH of oven
cleaner. Based on this info, the food is - CORRECT ANSWER✔✔- an egg white
,A scientist adds 5 mcg of the mineral cadmium to the daily diet of 100 4-week-old lab mice.
After 12 weeks, the researcher weighs and takes blood samples from each mouse. According
to her findings, the mice lost weight during the 12-week period and they have abnormal
levels of certain hormones in their blood. Based on this info, what would you tell the
researcher about her findings? - CORRECT ANSWER✔✔- The findings are not meaningful
or valid because of the way she designed her study.
A scientist discovers a chemical compound in certain rocks that she calls "stonia". She cannot
market extracts that contain stonia as a dietary supplement, because it - CORRECT
ANSWER✔✔- does not contain dietary ingredients
Zach takes 500 mg of vitamin C daily. He advises friends to take vitamin C supplements
because, he claims, the vitamin protects him from cold viruses. His claim about the
usefulness of the vitamin is an - CORRECT ANSWER✔✔- anecdote
The professional football star Andro "The Man" McGraw claims the dietary supplement
AminoProFix helped him build muscle mass quickly and safely. His endorsement of the
product is an example of - CORRECT ANSWER✔✔- a testimonial
Which of the following products is a popular dietary supplement among American adults? -
CORRECT ANSWER✔✔- Echinacea
Scientists enroll 500 healthy adults in a study and collect dietary and other lifestyle info about
the group. After 6 years, the scientists determine that study participants who ate at least 5
servings of fruits and vegetables daily were less likely to develop high blood pressure than
those who ate fewer than 5 servings of fruits daily. This study is an example of a ____ study -
CORRECT ANSWER✔✔- prospective
An advertisement for a weight loss product includes ____, indicating that the ad is an
unreliable source of nutrition info, and the product is likely to be worthless.
A) the statement that individual results may vary
B) promises of a quick and easy path to weight loss
C) vague, meaningless terms - CORRECT ANSWER✔✔- all of these are correct
,Which of the following observations is an example of an inverse correlation? - CORRECT
ANSWER✔✔- Women who smoke 5+ cigarettes each day during pregnancy are more likely
to give birth to underweight babies than women who smoke fewer than 5 cigarettes a day
during pregnancy
A magazine article about weight loss diets includes false information about the process of
digestion that uses scientific-sounding terms to make it seem factual. The faulty info is an
example of - CORRECT ANSWER✔✔- pseudoscience
A group of registered dietitians is planning to conduct a scientific study to investigate the
effects of eating honey on school-aged children's behavior. At first, the researchers will -
CORRECT ANSWER✔✔- make observations
Which of the following statements is true? - CORRECT ANSWER✔✔- The typical Asian
diet contains high amounts of vegetables and inadequate amounts of milk and milk products
Which of the following statements is true?
A) Dietitians usually rely on Daily Values to evaluate the nutritional adequacy of diets
B) To avoid nutrient deficiency disorders, Americans should consume 50% of the EAR for
each nutrient
C) A person who meets the EER for his or her racial and/or ethnic ancestry will gain at least 2
pounds/week - CORRECT ANSWER✔✔- None of these are correct
Kayla was a participant in a clinical study to determine how much vitamin C cures scurvy,
the vitamin's deficiency disease. During the study, Kayla consumed only a formula diet that
was nutritionally complete, except it did not contain vitamin C. Within a few weeks, Kayla
developed scurvy. At that point, researchers gave 2mg vitamin C to her each day for a week,
but her signs and symptoms of scurvy remained. In the weeks that followed, the scientists
continued to increase her intake of the vitamin by 2 mg/week. After a week of taking 10mg of
vitamin C/day, she reported feeling much better. Based on this info, researches concluded that
Kayla's - CORRECT ANSWER✔✔- requirement for vitamin C was 10 mg
Today, the only food Meghan ate was a casserole that contained 24 ounces of lemon-flavored
yogurt, 16 oz of cooked turkey, and 10 oz of cooked noodles. According to MyPlate, she ate
nothing from the group that includes - CORRECT ANSWER✔✔- fruit
, A group of 50 adult male humans were in a clinical study to determine how much niacin is
toxic. During the first two weeks of the study, members of the group consumed only a
formula diet that was nutritionally complete, except it contained 24 mg niacin, which is 1.5
times the RDA for niacin (males). At that point in the study, all members reported feeling
fine, and they could function normally. During the next week, they were given a formula that
contained 48 mg niacin. Within a few days of consuming this formula, 90% of the
participants reported feeling ill, and they complained of having upset stomachs and reddened
facial skin. At that point, researchers gave the subjects a formula that contain 16 mg niacin.
After a week of consuming the new formula, all participants reported feeling well again.
Based on this information, the researchers concluded that the - CORRECT ANSWER✔✔-
UL for niacin was between 24 and 48 mg/day
Kristin uses % DVs to help plan nutritious menus with various packaged foods. She should
try to obtain at least 100% of the daily value for which of the following nutrients? -
CORRECT ANSWER✔✔- Vitamin C
Monique is a 19-year-old college student who would like to follow a Mediterranean diet
pattern instead of her typical "western" diet. Based on this info, she should - CORRECT
ANSWER✔✔- increase her intake of fruit and legumes
According to Dietary Guidelines for Ameircans, 2010, Americans should limit their
cholesterol intake to _____ mg/day - CORRECT ANSWER✔✔- 300
You are planning a party for a group of 22-year old college students. Some of the students
follow the dietary practices of the religion of Islam. Which of the following beverages would
be acceptable to everyone at the party? - CORRECT ANSWER✔✔- Iced punch made with
fruit juices and carbonated water
A nutrition scientist wants to develop a nutritionally complete formula diet for adults who are
healthy but need to avoid solid food for a while. Based on this info, she is likely to refer to
____ when developing the new formula - CORRECT ANSWER✔✔- DRIs
The primary function of the cardiovascular system is - CORRECT ANSWER✔✔- circulation
of blood throughout the body
The primary function of the cardiovascular system is - CORRECT ANSWER✔✔-
