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NSC 209 Exam 2 questions reviews & correct answers.
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NSC 209 Exam 2 questions reviews &correct answers.
Alcohol slows the body's use of ANS - fat for fuel
Feasting ANS - more energy consumed than expended
Excess carbohydrates are first stored as __________. When these stores are full, this ______ is then
used for ______, displacing use of _____, so ______ is stored. ANS - glycogen
glycogen
energy
fat
fat
Alcohol yields how many kcals/gram? ANS - 7 kcal/g
When we consume carbohydrates, the excess glucose is stored as _______ in the _____ and ______.
ANS - glycogen
liver
muscles
When we overconsume, our ____ cells ______.
In adulthood, the ______ get ______ in size.
In infancy, the _______ of cells ______. ANS - fat
enlarge
fat cells
larger
number
increases
,Humans lay down the number of _____ cells they are going to have for their whole life in _____. This is
why it is important to have adequate eating between _______ of life. ANS - fat
infancy
6 to 12 months
Fat yields ______. It is the most calorically ______ macronutrient. ANS - 9 kcal/g
dense
Consumed fat takes a direct route to the ANS - adipose tissue for storage
The body possesses _____ to convert excess ______ to body fat, but the process is very ______. ANS -
enzymes
protein
inefficient
When a person engages in feasting:
carbohydrates -> ______ -> _______
fat -> ________ -> ________
protein -> ________ -> ________ ANS - glucose; liver and fat as glycogen stores
fatty acids; body fat stores
amino acids; nitrogen lost in urine
When a person engages in feasting with protein, it is broken down in the body to ______, which are first
used to replace body ______. Excess contributes to body _______ and can also be converted to ______
or ______. ANS - amino acids
proteins
fuel
glucose
fat
,The body is always _______ active, even when you are not active. This is referred to as your _______
_________. ANS - metabolically
basal metabolism
basal metabolism ANS - the energy needed to maintain life when a body is at complete digestive,
physical, and emotional rest
Roughly _____ of your energy expenditure is just to keep you alive. ANS - 2/3
When you're not eating, your body is using _____ ______ available in your body. This is a _______ state.
When you're fasting, the body uses _____ from the _____, and _____ from the ______ tissue as a
source of energy. ANS - store fuel
fasting
glycogen
liver
fatty acids
adipose
Liver glycogen can only supply _____ for up to _____. ANS - glucose
a day
Within a few hours of a fast, the cells primarily use ______ as a fuel source. However, the ________ is
not able to use ______ as a fuel source; it requires ______ ANS - fatty acids
nervous system
fatty acids
glucose
Brains, nerves, and red blood cells cannot metabolize ______. They need ______ for fuel. ANS - fatty
acids
glucose
, Since ____ cannot be used by the nervous system for energy, body _____ are catabolized and _____
acids are converted to ______ in the _____ to provide fuel for the ______. ANS - fatty acids
proteins
amino
glucose
liver
brain
For the first few days of a fast, ______ of the glucose is provided through the use of body _____, and
_____ of the glucose comes from the _____ backbones from _____ acid breakdown. ANS - 90%
protein
10%
glycerol
fatty
During a prolonged fast, ______ develop from the _________ of fat can serve as fuel for the ______. The
primary fuel for most areas of the brain is still ______. ANS - ketone bodies
catabolism
brain
glucose
Ketone bodies ANS - compounds produced during the incomplete breakdown of fat when glucose is
not available in the cells
Ketone bodies are _____, _____-soluble compounds produced by the ______ from fatty acid fragments.
ANS - acidic
water
liver
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