FSHN 167 Exam 3 Questions with Correct Answers Latest Update 2025/2026
list two function of the stomach - Answers * creates secretions for digestion
* turns and moves around the food to help digestion
* signals the brain that gastrin is needed
What are the functions of hydrochloric acid secreted by the stomach, and the role of pepsin?
Where does protein digestion start? - Answers Hydrochloric acid- destroys some
microorganisms and activates a protein called pepsin
Pepsin- protein digesting enzyme secreted in gastric juices
-some protein digestion starts in the stomach-
A sphincter at the exit of the stomach regulates the stomach by emptying. What factors affect
the rate of the emptying into the small intestine? - Answers The size and the composition of the
meal affect the rate which chyme enters the small intestine
design a meal that will empty rapidly into the stomach - Answers I would create a small
strawberry smoothie
what is the role of (energy) calorie density in determining stomach emptying? - Answers Foods
that are higher in fat have a higher energy density and empty more slowly into the small
intestine because they create satiety.
How many calories per gram are in
-protein
-fat
-carbs
how does this affect satiety after eating? - Answers 4 cal per gram -protein
9 cal per gram -fat
4 cal per gram -carbs
Protein is the most filling, next fat, then carbs. The most satiating is the slower digestion.
What research supports the role for protein in satiety? Describe evidence that a high protein
breakfast suppresses lunch-time hunger - Answers The University of Missouri compared
consuming a high-protein vs a normal-protein diet in overweight teens. They looked at brain
scans, and it showed that eating a protein-rich breakfast reduced signals in regions of the brain
that control satiety.
, What are some health concerns for people who skip breakfast. - Answers * increased excess
weight in children, teens, and adults
*raised blood pressure
* higher fasting blood glucose levels
what factors could account for the increased risk of prediabetes and type 2 diabetes? - Answers
Higher fasting blood glucose levels
insulin secretion and muscle cells response to insulin are higher in the morning.
list 'shortfall nutrients that are often provided by breakfast foods - Answers *calcium
*potassium
*vitamin D
*fiber
Identify the organ where 95% of digestion occurs. Identify the organ where the majority of
nutrient absorption occurs. - Answers The organ where 95% of digestion occurs is the small
intestine.
The organ where a majority of nutrient absorption is the small intestine.
How do the accessory organs, the liver, gallbladder, and pancreas participate in the digestion of
food within the small intestine? - Answers The liver produces Bile, which aids in fat digestion,
while absorbing the products.
The Gallbladder stores the bile created by the liver to secrete when needed.
The pancreas secretes digestive enzymes and sodium bicarbonate, which neutralizes
hydrochloric acid.
Which 3 structural features of the small intestine increase the surface area available to contact
nutrients to 600 times that of a simple tube - Answers Folds
Villi
Microvilli
Define transit time. Why is there such a large range in transit time? - Answers from the time
digestion starts to the time you poop. This has a large range because it depends on the
composition and size of meals, also how fast your personal digestion can work.
Name a nutrient that is absorbed: a) directly into the blood; b) into the lymph first before
eventually reaching the bloodstream. - Answers a) Water soluable nutrients like vitamin c, sugar,
list two function of the stomach - Answers * creates secretions for digestion
* turns and moves around the food to help digestion
* signals the brain that gastrin is needed
What are the functions of hydrochloric acid secreted by the stomach, and the role of pepsin?
Where does protein digestion start? - Answers Hydrochloric acid- destroys some
microorganisms and activates a protein called pepsin
Pepsin- protein digesting enzyme secreted in gastric juices
-some protein digestion starts in the stomach-
A sphincter at the exit of the stomach regulates the stomach by emptying. What factors affect
the rate of the emptying into the small intestine? - Answers The size and the composition of the
meal affect the rate which chyme enters the small intestine
design a meal that will empty rapidly into the stomach - Answers I would create a small
strawberry smoothie
what is the role of (energy) calorie density in determining stomach emptying? - Answers Foods
that are higher in fat have a higher energy density and empty more slowly into the small
intestine because they create satiety.
How many calories per gram are in
-protein
-fat
-carbs
how does this affect satiety after eating? - Answers 4 cal per gram -protein
9 cal per gram -fat
4 cal per gram -carbs
Protein is the most filling, next fat, then carbs. The most satiating is the slower digestion.
What research supports the role for protein in satiety? Describe evidence that a high protein
breakfast suppresses lunch-time hunger - Answers The University of Missouri compared
consuming a high-protein vs a normal-protein diet in overweight teens. They looked at brain
scans, and it showed that eating a protein-rich breakfast reduced signals in regions of the brain
that control satiety.
, What are some health concerns for people who skip breakfast. - Answers * increased excess
weight in children, teens, and adults
*raised blood pressure
* higher fasting blood glucose levels
what factors could account for the increased risk of prediabetes and type 2 diabetes? - Answers
Higher fasting blood glucose levels
insulin secretion and muscle cells response to insulin are higher in the morning.
list 'shortfall nutrients that are often provided by breakfast foods - Answers *calcium
*potassium
*vitamin D
*fiber
Identify the organ where 95% of digestion occurs. Identify the organ where the majority of
nutrient absorption occurs. - Answers The organ where 95% of digestion occurs is the small
intestine.
The organ where a majority of nutrient absorption is the small intestine.
How do the accessory organs, the liver, gallbladder, and pancreas participate in the digestion of
food within the small intestine? - Answers The liver produces Bile, which aids in fat digestion,
while absorbing the products.
The Gallbladder stores the bile created by the liver to secrete when needed.
The pancreas secretes digestive enzymes and sodium bicarbonate, which neutralizes
hydrochloric acid.
Which 3 structural features of the small intestine increase the surface area available to contact
nutrients to 600 times that of a simple tube - Answers Folds
Villi
Microvilli
Define transit time. Why is there such a large range in transit time? - Answers from the time
digestion starts to the time you poop. This has a large range because it depends on the
composition and size of meals, also how fast your personal digestion can work.
Name a nutrient that is absorbed: a) directly into the blood; b) into the lymph first before
eventually reaching the bloodstream. - Answers a) Water soluable nutrients like vitamin c, sugar,
