NDFS 100 Exam 3 BYU Test Questions
with Guaranteed Pass Solutions 2026
Updated.
What are the major roles of water? - Answer Transports nutrients; dissolves amino acids,
glucose, minerals, etc. to be excreted; coolant; cleansing agent.
What factors increase fluid needs? - Answer Alcohol; cold weather; breastfeeding &
pregnancy; surgery, blood loss, burns, medications, etc; children; elderly; certain diseases;
forced air environments -- airplanes, sealed buildings, etc.
Hard water is high in what? - Answer Calcium and magnesium
Soft water is high in what? - Answer Sodium
What foods can be sources of water? - Answer Celery and lettuce
What are examples of surface water? - Answer Lakes, rivers, reservoirs
What are surface waters exposed to? - Answer Acid rain and pollution
What things can remove contaminants from surface water? - Answer Plants,
microorganisms, and sunlight
What can ground water be contaminated by? - Answer hazardous waste, dumps, oil and gas
pipelines, sewage
Where is ground water found? - Answer Underground
What type of water takes longer to decontaminate? - Answer Groundwater
What is the main function of calcium? - Answer Strong bones and teeth
What are other functions of calcium? - Answer Nerve transmission, blood pressure &
clotting, muscle contraction
, What are calcium food sources? - Answer Dairy, green vegetables
What are calcium toxicities? - Answer Constipation, lowered absorption of other minerals
(especially Iron), kidney stones
What is the main function of magnesium? - Answer Assists more than 300 enzymes
What are other functions of magnesium? - Answer Muscle function, bone mineralization
What are magnesium food sources? - Answer Nuts, legumes, seafood, dark green foods,
dark chocolate
What are the functions of sodium? - Answer Muscle contraction, fluid balance, nerve
transmission, acid-base (pH) balance
What are sodium food sources? - Answer Salt, processed (fast) food, condiments and
seasonings
What are sodium toxicities? - Answer Hypertension (high blood pressure), increased risk for
heart disease and stroke.
What is the main function of potassium? - Answer Muscle contractions
What are other functions of potassium? - Answer Fluid & electrolyte balance, maintaining
steady heartbeat
What are potassium food sources? - Answer Fruits and vegetables
What is the main function of iodine? - Answer Thyroid regulation
What is the other function of iodine? - Answer Metabolic rate
What are iodine food sources? - Answer Seafood, fast food, baked food, milk, salt and sea
salt (if iodized)
What are iodine deficiencies? - Answer Goiter (thyroid neck growths) stunted physical and
mental growth
with Guaranteed Pass Solutions 2026
Updated.
What are the major roles of water? - Answer Transports nutrients; dissolves amino acids,
glucose, minerals, etc. to be excreted; coolant; cleansing agent.
What factors increase fluid needs? - Answer Alcohol; cold weather; breastfeeding &
pregnancy; surgery, blood loss, burns, medications, etc; children; elderly; certain diseases;
forced air environments -- airplanes, sealed buildings, etc.
Hard water is high in what? - Answer Calcium and magnesium
Soft water is high in what? - Answer Sodium
What foods can be sources of water? - Answer Celery and lettuce
What are examples of surface water? - Answer Lakes, rivers, reservoirs
What are surface waters exposed to? - Answer Acid rain and pollution
What things can remove contaminants from surface water? - Answer Plants,
microorganisms, and sunlight
What can ground water be contaminated by? - Answer hazardous waste, dumps, oil and gas
pipelines, sewage
Where is ground water found? - Answer Underground
What type of water takes longer to decontaminate? - Answer Groundwater
What is the main function of calcium? - Answer Strong bones and teeth
What are other functions of calcium? - Answer Nerve transmission, blood pressure &
clotting, muscle contraction
, What are calcium food sources? - Answer Dairy, green vegetables
What are calcium toxicities? - Answer Constipation, lowered absorption of other minerals
(especially Iron), kidney stones
What is the main function of magnesium? - Answer Assists more than 300 enzymes
What are other functions of magnesium? - Answer Muscle function, bone mineralization
What are magnesium food sources? - Answer Nuts, legumes, seafood, dark green foods,
dark chocolate
What are the functions of sodium? - Answer Muscle contraction, fluid balance, nerve
transmission, acid-base (pH) balance
What are sodium food sources? - Answer Salt, processed (fast) food, condiments and
seasonings
What are sodium toxicities? - Answer Hypertension (high blood pressure), increased risk for
heart disease and stroke.
What is the main function of potassium? - Answer Muscle contractions
What are other functions of potassium? - Answer Fluid & electrolyte balance, maintaining
steady heartbeat
What are potassium food sources? - Answer Fruits and vegetables
What is the main function of iodine? - Answer Thyroid regulation
What is the other function of iodine? - Answer Metabolic rate
What are iodine food sources? - Answer Seafood, fast food, baked food, milk, salt and sea
salt (if iodized)
What are iodine deficiencies? - Answer Goiter (thyroid neck growths) stunted physical and
mental growth
