Portage Learning BIOD 121 Module1 Exam
QUESTION
what is nutrition?
a science that links foods to health and disease
Includes processes by which humans ingest, digest, absorb, transport,
and excrete food substances
nutrition is a relatively ____________ science
young
QUESTION
what can be evaluated when considering one's health?
five dimensions
1. physical health (ability to perform daily functions for survival)
2. intellectual health (cognitive ability to learn and adapt)
3. emotional health (ability to express or suppress emotion)
4. social health (ability to interact with others)
5. spiritual health (purpose for human existence, cultural practices)
QUESTION
when is nutrition important?
conception to death
QUESTION
what are both keys to good health?
physical activity and nutrition
QUESTION
what is the difference between food and nutrients?
food = provides energy (calories)
nutrients = substances in food (building and maintaining our body and
keys to metabolic processes that sustain life)
pg. 1
,QUESTION
what is the science of nutrition?
provides information to consumers to make wise food choices based
on age and lifestyle
QUESTION
what do americans today have compared to their parents and
grandparents?
what does this cause?
longer life expectancy
continuing to make wise food choices to prevent disease throughout
life more important today than ever before
QUESTION
what are the two most important reasons specific foods are
consumed?
taste and texture
QUESTION
what is the goal of nutrition?
meet nutrient needs and prevent disease
QUESTION
why do we get hungry?
list them
hormones impact hunger
ghrelin and leptin
QUESTION
what are the roles of ghrelin and leptin?
balance hunger and satiety
QUESTION
pg. 2
, what is the function of ghrelin?
increases hunger, produced by the stomach
***deactivates satiety center
QUESTION
what is the function of leptin?
decreases hunger, produced in adipose cells
***activates satiety center
QUESTION
what are the two drivers that influence our desire to eat?
hunger and appetite
QUESTION
what is the difference between hunger, appetite, and satiety?
hunger = internal drive, negative sensation (churning, growling)
appetite = external drive, positive sensation
satiety = feeling of fullness
QUESTION
where are the feeding center and satiety center activated?
hypothalamus (region of brain)
QUESTION
what happens when we have not eaten for a period of time?
concentration of nutrients in blood begin to decline --> stimulates
feeding center in hypothalamus --> signals us to eat
QUESTION
what happens when we have just eaten?
pg. 3
QUESTION
what is nutrition?
a science that links foods to health and disease
Includes processes by which humans ingest, digest, absorb, transport,
and excrete food substances
nutrition is a relatively ____________ science
young
QUESTION
what can be evaluated when considering one's health?
five dimensions
1. physical health (ability to perform daily functions for survival)
2. intellectual health (cognitive ability to learn and adapt)
3. emotional health (ability to express or suppress emotion)
4. social health (ability to interact with others)
5. spiritual health (purpose for human existence, cultural practices)
QUESTION
when is nutrition important?
conception to death
QUESTION
what are both keys to good health?
physical activity and nutrition
QUESTION
what is the difference between food and nutrients?
food = provides energy (calories)
nutrients = substances in food (building and maintaining our body and
keys to metabolic processes that sustain life)
pg. 1
,QUESTION
what is the science of nutrition?
provides information to consumers to make wise food choices based
on age and lifestyle
QUESTION
what do americans today have compared to their parents and
grandparents?
what does this cause?
longer life expectancy
continuing to make wise food choices to prevent disease throughout
life more important today than ever before
QUESTION
what are the two most important reasons specific foods are
consumed?
taste and texture
QUESTION
what is the goal of nutrition?
meet nutrient needs and prevent disease
QUESTION
why do we get hungry?
list them
hormones impact hunger
ghrelin and leptin
QUESTION
what are the roles of ghrelin and leptin?
balance hunger and satiety
QUESTION
pg. 2
, what is the function of ghrelin?
increases hunger, produced by the stomach
***deactivates satiety center
QUESTION
what is the function of leptin?
decreases hunger, produced in adipose cells
***activates satiety center
QUESTION
what are the two drivers that influence our desire to eat?
hunger and appetite
QUESTION
what is the difference between hunger, appetite, and satiety?
hunger = internal drive, negative sensation (churning, growling)
appetite = external drive, positive sensation
satiety = feeling of fullness
QUESTION
where are the feeding center and satiety center activated?
hypothalamus (region of brain)
QUESTION
what happens when we have not eaten for a period of time?
concentration of nutrients in blood begin to decline --> stimulates
feeding center in hypothalamus --> signals us to eat
QUESTION
what happens when we have just eaten?
pg. 3
