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Portage Nutrition BIOD 121 Exam 1
Questions and Answers
True or False. If false, explain why it is false.
Nutritional value and taste are often the 2 most important reasons
specific foods are consumed in North America.
Ans: False: Taste and texture are often the 2 most important reasons
specific foods are consumed in North America.
True or False: Nutrition is the science that links foods to health
and disease.
Ans: True
Explain the difference between Internal and External drives that
influence our desire to eat.
Ans: The internal drive is hunger and is associated with negative
sensations like churning, growling and pain in the stomach. External
drives have to do with appetite and are associated with positive food
sensations and lead us to eat when we are not hungry.
You are at an "all you can eat'' buffet. On the first pass through
the line, you fill your plate with a large quantity of foods. After
eating it, you go back for a second portion of the foods you liked.
However, the food is less appealing the second time around, and
you place a smaller quantity on your plate because you feel full.
Considering the physiology as you eat, (1) explain what hormones
are released (list specifically) as the stomach stretches. (2) List the
area of the brain that provides neural regulation and appetite
suppression to inhibit eating.
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, 2 | Page
Ans: As the stomach is filled and stretches, hormones are released that
cause satiety (Leptin, serotonin, cholecystokinin (CCK). These hormones
can travel to the brain (hypothalamus) and activate the satiety center.
1. The hormones being released as the stomach stretches is leptin,
seratonin, and CCK. These hormones decrease hunger, in specific leptin.
They acitvate the satiety center in the brain which creates a sense of
fullness.
2. The area of the brain that provides nerual regulation and appetite
suppression to inhibit eating is the satiety center.
A _________ is a substance that can promote growth and
development, maintain tissues and cells, fuel the body for physical
and metabolic work, or regulate a body process.
Ans: nutrient
Macronutrient
Ans: needed in large amounts in the body
Micronutrients
Ans: needed in small amounts
organic
Ans: A compound that contains carbon and hydrogen
inorganic
Ans: any substance that does not contain carbon
True or False. If false, explain why it is false.
A mineral is an organic micronutrient that regulates body
processes and provides structure.
Ans: FALSE: A mineral is an inorganic micronutrient that regulates body
processes and provides structure.
Which of the following is an inorganic macronutrient?
© 2025 All rights reserved
Portage Nutrition BIOD 121 Exam 1
Questions and Answers
True or False. If false, explain why it is false.
Nutritional value and taste are often the 2 most important reasons
specific foods are consumed in North America.
Ans: False: Taste and texture are often the 2 most important reasons
specific foods are consumed in North America.
True or False: Nutrition is the science that links foods to health
and disease.
Ans: True
Explain the difference between Internal and External drives that
influence our desire to eat.
Ans: The internal drive is hunger and is associated with negative
sensations like churning, growling and pain in the stomach. External
drives have to do with appetite and are associated with positive food
sensations and lead us to eat when we are not hungry.
You are at an "all you can eat'' buffet. On the first pass through
the line, you fill your plate with a large quantity of foods. After
eating it, you go back for a second portion of the foods you liked.
However, the food is less appealing the second time around, and
you place a smaller quantity on your plate because you feel full.
Considering the physiology as you eat, (1) explain what hormones
are released (list specifically) as the stomach stretches. (2) List the
area of the brain that provides neural regulation and appetite
suppression to inhibit eating.
© 2025 All rights reserved
, 2 | Page
Ans: As the stomach is filled and stretches, hormones are released that
cause satiety (Leptin, serotonin, cholecystokinin (CCK). These hormones
can travel to the brain (hypothalamus) and activate the satiety center.
1. The hormones being released as the stomach stretches is leptin,
seratonin, and CCK. These hormones decrease hunger, in specific leptin.
They acitvate the satiety center in the brain which creates a sense of
fullness.
2. The area of the brain that provides nerual regulation and appetite
suppression to inhibit eating is the satiety center.
A _________ is a substance that can promote growth and
development, maintain tissues and cells, fuel the body for physical
and metabolic work, or regulate a body process.
Ans: nutrient
Macronutrient
Ans: needed in large amounts in the body
Micronutrients
Ans: needed in small amounts
organic
Ans: A compound that contains carbon and hydrogen
inorganic
Ans: any substance that does not contain carbon
True or False. If false, explain why it is false.
A mineral is an organic micronutrient that regulates body
processes and provides structure.
Ans: FALSE: A mineral is an inorganic micronutrient that regulates body
processes and provides structure.
Which of the following is an inorganic macronutrient?
© 2025 All rights reserved
