DHN 101 Exam 2 Questions with
Correct Answers
Which of the following foods is naturally a good source of high-quality protein?
Soybean oil
Fat-free milk
Avocado with leafy greens salad
Sesame seed crackers - Answer-Fat-free milk
_____ is the process that changes the normal shape of a protein and, as a result, the
molecule loses its usual function.
Filtration
Denaturation
Protonation
Hydrogenation - Answer-Denaturation
An amino acid does not contain a(n) _____________.
fatty acid group
amino group
carbon skeleton
acid group - Answer-Fatty Acid group
You would like to bake a special pudding for a friend who has celiac disease. The
original pudding recipe is made with eggs, flour, milk, sugar, vanilla, and butter. To
make pudding that is safe for your friend to consume, you plan to substitute _____ for
the ____ in the recipe.
tapioca; flour
apple juice; milk
corn oil; butter
honey; sugar - Answer-tapioca; flour
Which of the following menu items does not contain complementary protein?
Whole-wheat crackers spread with soy nut butter
Salad made with apples, pears, and grapes
Kidney beans mixed with rice
Pita bread dipped in mashed chickpeas - Answer-Salad made with apples, pears, and
grapes
Ketone body formation is called ___________.1.
,ketosynthesis
ketogenesis
ketoacidosis
ketosis - Answer-ketogenesis
Which of the following does not describe acetone?
Acetone is toxic to cells.
Acetone is removed from the body by exhalation through the lungs.
Acetone is one of three ketone bodies.
Acetone is made from beta-hydroxybutyrate. - Answer-Acetone is made from beta-
hydroxybutyrate.
A very-low-carbohydrate diet will result in _________________________
increased glycogenesis
increased fatty acid synthesis
a reduction in available oxaloacetate molecules
All of these are correct. - Answer-a reduction in available oxaloacetate molecules
Cells (excluding ______ cells) can use acetoacetate and beta-hydroxybutyrate as
sources of acetyl CoA.
brain
muscle
kidney
liver - Answer-liver
To control her weight, Louisa began following a very-low-carbohydrate diet that
supplied, on average, less than 5% of her daily kilocalories from carbohydrates. Louisa,
however, did not change her daily caloric intake, which averaged 1600 kcal per day.
Compared to her previous diet, her new diet emphasized lean meats and healthy fats.
After following the low-carbohydrate diet for 4 weeks, Louisa reported experiencing
constipation and fatigue.
To avoid ketosis, the average person needs to consume ______ of digestible
carbohydrates daily.
200 grams
150 grams
100 grams
50 grams - Answer-100 grams
To control her weight, Louisa began following a very-low-carbohydrate diet that
supplied, on average, less than 5% of her daily kilocalories from carbohydrates. Louisa,
however, did not change her daily caloric intake, which averaged 1600 kcal per day.
, Compared to her previous diet, her new diet emphasized lean meats and healthy fats.
After following the low-carbohydrate diet for 4 weeks, Louisa reported experiencing
constipation and fatigue.
Louisa's constipation and fatigue are a sign and symptom of ________________.
beta-oxidation
glycogen breakdown
transaminase
ketosis - Answer-ketosis
In a person with type II diabetes, the blood sugar level remains high after a meal
because - Answer-muscle and liver cells do not receive a signal
In 2008 FDA approved a sweetener derived from a South African shrub called - Answer-
Stevia
In the US the artificial sweetener _____ has been used for over 100 years - Answer-
saccharin
The alternative sweetener that is made by combining the amino acids phenylalanine
and aspartic acid is called - Answer-aspartame
The alternative sweetener _____ is made by chemically modifying a sucrose molecule
so it escapes digestion and absorption - Answer-sucralose
After eating a meal, blood sugar levels - Answer-increase
After a late night, you overslept this morning and woke up late for class. In a rush to
leave the house, you failed to eat breakfast. A few hours later, with an empty stomach,
your blood pressure drops. This prompts your pancreas to release _____ to stimulate
breakdown of glycogen in the liver into glucose. - Answer-glucagon
After morning class, with your stomach growling, you stagger to the cafeteria and
devour a large pasta entrée for lunch. Following this meal, your blood sugar rises and
the pancreas releases _____ in an attempt to shuttle blood sugar into your cells. -
Answer-insulin
You go to your next class, but because you're so full from lunch, you doze off. You
awake to your classmate poking you in the arm as you realize the teacher is calling your
name to answer a question. With your heart racing, your body now releases _____,
which increases glycogen breakdown in the liver and raises your blood sugar. - Answer-
epinephrine
Nutritive sweeteners - Answer-sugar, corn syrup, polydextrose, maltodextrin, & sorbitol
