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NTR 301 TEST #4 QUESTIONS AND
CORRECT DETAILED ANSWERS
|ALREADY GRADED A+ LATEST
UPDATE | 2024-2025
Most abundant nutrient in the body
Ans
✓ Water
Men are ~_____ water by weight; women are ~_____ water by weight
Ans
✓ 60%; 50%
Why do men contain more water than women in their bodies?
Ans
✓ They have more muscle
Functions of water in the body
Ans
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✓ 1. Provides structure: makes up cytoplasm
✓ 2. Acts as a solvent: many biochemical reactions can take place only when reacting
components are dissolved in water
✓ 3. Acts as a catalyst: hydrolysis - splitting of compounds via water
✓ 4. Transports compounds: the medium for oxygen, nutrients, enzymes, immune factors,
waste products, and others via GI secretions, blood, lymph, urine, etc,
✓ 5. Acts as a lubricant: tears, saliva, mucus, synovial fluid, amniotic fluid
✓ 6. Controls body temp: water holds its temp well - helps prevent wide swings in body temp;
water carries heat away from body via sweat
Symptoms of dehydration
Ans
✓ Extreme thirst, less frequent urination, dark colored urine, fatigue, diiness, confusionzz
Thirst as an indicator of hydration level
Ans
✓ Tells you when to start drinking, but quenching your thirst is not a good indicator of
complete fluid replacement, especially for athletes
Why are older adults at risk for dehydration?
Ans
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✓ Sense of thirst decreases with increasing age; diuretic medications are common
Why are infants at risk for dehydration?
Ans
✓ May lose water rapidly through their skin; infection leading to diarrhea, causing dehydration
is a major cause of infant death worldwide
Primary routes of water loss
Ans
✓ Feces (~4%), insensible loss: evaporation from skin and breath(~28%), sweat (~8%), urine
(~60%)
How does the rate of water loss in feces change from normal temp to hotter
temp/prolonged exercise?
Ans
✓ Stays constant
How does the rate of water loss from skin change from normal temp to hotter
temp/prolonged exercise?
Ans
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✓ Stays constant
How does the rate of water loss from respiration change from normal temp to
hotter temp/prolonged exercise?
Ans
✓ Increases
How does the rate of water loss from sweat change from normal temp to
hotter temp/prolonged exercise?
Ans
✓ Increases
How does the rate of water loss in urine change from normal temp to hotter
temp/prolonged exercise?
Ans
✓ Decreases
How does the body conserve water in the face of increasing losses?
Ans
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NTR 301 TEST #4 QUESTIONS AND
CORRECT DETAILED ANSWERS
|ALREADY GRADED A+ LATEST
UPDATE | 2024-2025
Most abundant nutrient in the body
Ans
✓ Water
Men are ~_____ water by weight; women are ~_____ water by weight
Ans
✓ 60%; 50%
Why do men contain more water than women in their bodies?
Ans
✓ They have more muscle
Functions of water in the body
Ans
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,Thank You for Choosing Us! Resources & Updates: [Testtrackers - Stuvia US]
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Customer Support: [+254707240657]
✓ 1. Provides structure: makes up cytoplasm
✓ 2. Acts as a solvent: many biochemical reactions can take place only when reacting
components are dissolved in water
✓ 3. Acts as a catalyst: hydrolysis - splitting of compounds via water
✓ 4. Transports compounds: the medium for oxygen, nutrients, enzymes, immune factors,
waste products, and others via GI secretions, blood, lymph, urine, etc,
✓ 5. Acts as a lubricant: tears, saliva, mucus, synovial fluid, amniotic fluid
✓ 6. Controls body temp: water holds its temp well - helps prevent wide swings in body temp;
water carries heat away from body via sweat
Symptoms of dehydration
Ans
✓ Extreme thirst, less frequent urination, dark colored urine, fatigue, diiness, confusionzz
Thirst as an indicator of hydration level
Ans
✓ Tells you when to start drinking, but quenching your thirst is not a good indicator of
complete fluid replacement, especially for athletes
Why are older adults at risk for dehydration?
Ans
TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence
Today!
,Thank You for Choosing Us! Resources & Updates: [Testtrackers - Stuvia US]
© 2024 TestTrackers Your Success is Our Mission!
Customer Support: [+254707240657]
✓ Sense of thirst decreases with increasing age; diuretic medications are common
Why are infants at risk for dehydration?
Ans
✓ May lose water rapidly through their skin; infection leading to diarrhea, causing dehydration
is a major cause of infant death worldwide
Primary routes of water loss
Ans
✓ Feces (~4%), insensible loss: evaporation from skin and breath(~28%), sweat (~8%), urine
(~60%)
How does the rate of water loss in feces change from normal temp to hotter
temp/prolonged exercise?
Ans
✓ Stays constant
How does the rate of water loss from skin change from normal temp to hotter
temp/prolonged exercise?
Ans
TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence
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, Thank You for Choosing Us! Resources & Updates: [Testtrackers - Stuvia US]
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Customer Support: [+254707240657]
✓ Stays constant
How does the rate of water loss from respiration change from normal temp to
hotter temp/prolonged exercise?
Ans
✓ Increases
How does the rate of water loss from sweat change from normal temp to
hotter temp/prolonged exercise?
Ans
✓ Increases
How does the rate of water loss in urine change from normal temp to hotter
temp/prolonged exercise?
Ans
✓ Decreases
How does the body conserve water in the face of increasing losses?
Ans
TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence
Today!
