NDFS 100 EXAM 3 BYU 2026 MINERALS
AND MICRONUTRIENTS MODULE
QUESTIONS SOLUTIONS GRADED FINAL
SCRIPT
◉ Hint: Cream cheese is not a significant source of calcium
Answer:
◉ Hint: Fish, meat, and poultry are great sources of heme iron
Answer:
◉ Hint: Make a table that includes the following information for the
minerals: function, food source, deficiency systems, and toxicity
symptoms (Focus particularly on calcium and iron)
Answer:
◉ Identify the major roles of water in the body
Answer: Roles of water in the body
,Water and minerals plays a key role in maintaining equal
distribution of body fluid
Water is the universal solvent
Water is a transport medium
- Water in blood and lymph helps transport substances throughout
your body
- As a part of blood, helps transport oxygen, nutrients, and other
important substances
- Transports waste products away from your cells (excreted in urine
and stool)
- Lymph fluid is almost entirely water; water transports proteins
back to blood stream; important in absorption of fats
Water helps maintain body temp
- Absorbs, carries, and releases heat to keep from overheating
Water is a lubricant and a protective cushion
- Lubricant for joints
- Water in tears lubricates eyes
- Part of saliva that moistens mouth
- Part of mucus that lubricates your GI tract
,- Surrounds your organ
◉ Factors influencing the amount of water needed by the body
Answer: Various environmental factors such as temperature,
humidity, radiation, and atmospheric pressure affect mainly
sweating and urinary water loss, while physical exercise affects, in
addition, increased respiratory water loss from the increased
expiratory volume and frequency of breathing.
◉ Sources of water
Answer: - Tap or bottled water
- Milk
- Juices
- Food
◉ Tap vs. bottled water
Answer: Tap:
- Sent to a treatment plant where dirt and debris are filtered,
bacteria are killed, and contaminants are removed
- Hardness refers to amount of metals (specifically calcium and
magnesium)
- No health concerns for drinking hard water
- A benefit is added fluoride, reducing dental caries
, - Costs less
Bottled
- Follows strict regulations by FDA
- Expensive
- Not all bottled water contains fluoride
- Enhanced waters may contain added vitamins, sugar, caffeine, and
calories
- Reusing plastic bottles from bottled waters is not advised;
breakdown of chemical can leak into the water
- Creates environmental problems
Both contain impurities, but are safe to drink and comes down to
preference and costs
◉ Electrolytes
Answer: Charged ions that conduct an electrical current in a solvent
such as water. Sodium, potassium, and chloride are examples of
electrolytes in the body; minerals important in fluid balance
◉ Your body is mostly water. Muscle tissue has more water than
does fat tissue. The water inside your body cells is balanced by the
water outside your cells. Electrolytes help maintain fluid balance.
Water is a universal solvent that helps transport oxygen and
AND MICRONUTRIENTS MODULE
QUESTIONS SOLUTIONS GRADED FINAL
SCRIPT
◉ Hint: Cream cheese is not a significant source of calcium
Answer:
◉ Hint: Fish, meat, and poultry are great sources of heme iron
Answer:
◉ Hint: Make a table that includes the following information for the
minerals: function, food source, deficiency systems, and toxicity
symptoms (Focus particularly on calcium and iron)
Answer:
◉ Identify the major roles of water in the body
Answer: Roles of water in the body
,Water and minerals plays a key role in maintaining equal
distribution of body fluid
Water is the universal solvent
Water is a transport medium
- Water in blood and lymph helps transport substances throughout
your body
- As a part of blood, helps transport oxygen, nutrients, and other
important substances
- Transports waste products away from your cells (excreted in urine
and stool)
- Lymph fluid is almost entirely water; water transports proteins
back to blood stream; important in absorption of fats
Water helps maintain body temp
- Absorbs, carries, and releases heat to keep from overheating
Water is a lubricant and a protective cushion
- Lubricant for joints
- Water in tears lubricates eyes
- Part of saliva that moistens mouth
- Part of mucus that lubricates your GI tract
,- Surrounds your organ
◉ Factors influencing the amount of water needed by the body
Answer: Various environmental factors such as temperature,
humidity, radiation, and atmospheric pressure affect mainly
sweating and urinary water loss, while physical exercise affects, in
addition, increased respiratory water loss from the increased
expiratory volume and frequency of breathing.
◉ Sources of water
Answer: - Tap or bottled water
- Milk
- Juices
- Food
◉ Tap vs. bottled water
Answer: Tap:
- Sent to a treatment plant where dirt and debris are filtered,
bacteria are killed, and contaminants are removed
- Hardness refers to amount of metals (specifically calcium and
magnesium)
- No health concerns for drinking hard water
- A benefit is added fluoride, reducing dental caries
, - Costs less
Bottled
- Follows strict regulations by FDA
- Expensive
- Not all bottled water contains fluoride
- Enhanced waters may contain added vitamins, sugar, caffeine, and
calories
- Reusing plastic bottles from bottled waters is not advised;
breakdown of chemical can leak into the water
- Creates environmental problems
Both contain impurities, but are safe to drink and comes down to
preference and costs
◉ Electrolytes
Answer: Charged ions that conduct an electrical current in a solvent
such as water. Sodium, potassium, and chloride are examples of
electrolytes in the body; minerals important in fluid balance
◉ Your body is mostly water. Muscle tissue has more water than
does fat tissue. The water inside your body cells is balanced by the
water outside your cells. Electrolytes help maintain fluid balance.
Water is a universal solvent that helps transport oxygen and
