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NSC EXAM 3 Test Review Questions with Verified Answers
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NSC EXAM 3 Test Review Questions with Verified Answers Which of the following contributes most to the weight of the human body? a. Iron b. Water c. Protein d. Calcium - Answer-b Among the following groups, which has the highest percentage of body water? a. Elderly b. Children c. Obese ...

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  • February 27, 2024
  • 50
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • nsc exam 3 test review questions with verified ans
  • approximately how much water lbs is found in a 1
  • what is the bodys most indispensable nutrient
  • what fraction of lean tissue represents the water

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NSC EXAM 3 Test Review Questions
with Verified Answers
Approximately how much water (lbs) is found in a 134-lb person?
a. 34
b. 65
c. 80
d. 105 - Answer-c

What is the body's most indispensable nutrient?
a. Fat
b. Water
c. Protein
d. Glucose - Answer-b

What fraction of lean tissue represents the water content?
a. 1/10
b. 1/3
c. 1/2
d. 3/4 - Answer-d

Which of the following is not a function of water in the body?
a. Lubricant
b. Source of energy
c. Maintains protein structure
d. Participant in chemical reactions - Answer-b

Which of the following contributes most to the weight of the human body?
a. Iron
b. Water
c. Protein
d. Calcium - Answer-b

Among the following groups, which has the highest percentage of body water?
a. Elderly
b. Children
c. Obese people
d. Female adolescents - Answer-b

In the body, water that resides between cells is known as
a. diuretic fluid.
b. interstitial fluid.
c. edematous fluid.
d. intravascular fluid. - Answer-b

,All of the following are mild symptoms of dehydration except
a. thirst.
b. fatigue.
c. weakness.
d. spastic muscles - Answer-d

Which of the following body structures helps to regulate thirst?
a. Brain stem
b. Cerebellum
c. Optic nerve
d. Hypothalamus - Answer-d

Where is interstitial water found?
a. Within cells
b. Between cells
c. Within the lungs
d. Within blood vessels - Answer-b

Which of the following is a feature of water and nutrition?
a. Water intoxication is rare but can result in death
b. Water losses from the body are highest through the feces
c. Chronic high intakes increase the risk for bladder cancer
d. Soft water has significant concentrations of magnesium and calcium - Answer-a

What minimum level of body weight loss as water impairs a person's physical
performance?
a. 1-2%
b. 3-4%
c. 5-9%
d. 10-15% - Answer-b

What minimum percentage of body weight loss as water results in fatigue, weakness,
and loss of appetite?
a. 1-2
b. 3-4
c. 5-6
d. 7-8 - Answer-a

Abnormally low blood sodium concentration is known specifically as
a. hypertension.
b. hyponatremia.
c. hyperkalemia.
d. water intoxication - Answer-b

Which of the following is a feature of water?

,a. Not a vital nutrient
b. Not found in foods
c. Oxidized to yield energy
d. Generated from oxidation of energy nutrients - Answer-d

The average daily loss of water via the kidneys, lungs, feces, and skin is approximately
a. 0 to 0.5 liters.
b. 0.5 to 1.5 liters.
c. 1.5 to 2.5 liters.
d. 3.0 to 4.0 liters. - Answer-c

What is the minimum amount of water (mL) that must be excreted each day as urine in
order to carry away the body's waste products?
a. 100
b. 250
c. 500
d. 1,000 - Answer-c

What is the minimum water intake for a 65-kg adult with an energy expenditure of 2,500
kcalories?
a. 250 mL
b. 650 mL
c. 1,250 mL
d. 2,500 mL - Answer-d

Approximately how much water is in a loaf of bread?
a. 2% of the loaf
b. 5% of the loaf
c. 20% of the loaf
d. 35% of the loaf - Answer-d

The minimum amount of water that must be excreted by the body to dispose of its
wastes is termed
a. life supporting fluid loss.
b. mandatory water fraction.
c. obligatory water excretion.
d. minimum daily water requirement. - Answer-c

The approximate percentage of water in pizza is
a. 5.
b. 15.
c. 30.
d. 45. - Answer-d

Approximately how many mL of water/day are produced by metabolism?
a. 100

, b. 250
c. 500
d. 750 - Answer-b

Which of the following is present in highest concentration in soft water?
a. Sodium
b. Calcium
c. Magnesium
d. Phosphorus - Answer-a

Habitual intake of soft water is most likely to aggravate
a. scurvy.
b. diabetes.
c. hypertension.
d. megaloblastic anemia - Answer-c

Which of the following is a characteristic of caffeine intake and water balance?
a. Caffeine inhibits water absorption from the GI tract
b. Caffeine is known to act as a diuretic only when consumed as coffee or tea
c. Regular intake of caffeine promotes an increase in water retention of the interstitial
fluid volume
d. Habitual consumers of caffeine lose almost no more fluid from the body than when
ingesting noncaffeinated beverages - Answer-d

Which of the following types of drinking water contains the lowest amount of minerals?
a. Soft water
b. Hard water
c. Natural water
d. Distilled water - Answer-d

What organ provides the major control for homeostasis of body fluids?
a. Liver
b. Heart
c. Kidneys
d. Skeletal muscle - Answer-c

How does antidiuretic hormone function?
a. It activates renin
b. It activates angiotension
c. It stimulates water reabsorption by the kidneys
d. It stimulates sodium reabsorption by the kidneys - Answer-c

What pituitary hormone regulates kidney retention of water?
a. Thyroxine
b. Cortisone
c. Epinephrine

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