314 Exam 1 Questions and All Correct
Answers 2026.
Nutrition Definition - Answer The science or practice of consuming and utilizing foods
Nutrition and Physiological Stages - Answer Macro and micronutrient requirements vary
dramatically during various physiological stages
E.g. High protein during rapid growth
Calcium and phosphorus increase with aging/during rapid growth
During lactation/pregnancy
Nutrition and Public Health - Answer Obesity epidemic
Human-Animal Relationships and Nutrition - Answer Pets, Horses, Agriculture, Aquaculture,
Wildlife mgmt.
Nutrition Affects Farm Profit - Answer Feed cost is greatest production cost.
Dairy: 40-60%
Beef: 85%
Swine: 75%
Poultry: 75%
Nutrition and Companion Animals - Answer Metabolic disease prevalence due to
overnutrition
Nutrition and the Environment - Answer Nitrogen losses to water and air result in
eutrophication, smog, and N2O
Phosphorus losses result in eutrophication
CH4 emissions
Eutrophication - Answer excessive richness of nutrients in a body of water which causes a
dense growth of plant life and death of animal life from lack of DO
Nitrogen Loss - Answer Volatile loss
Deposition
Runoff/Leaching
, GHG From Agriculture - Answer CH4-Livestock manure
CO2-Soil cultivation
N2O-Fertilizer/manure
Dilution of Maintenance - Answer If higher growth/production rate can be achieved for the
same maintenance cost, less nutrients are needed. Higher production dilutes maintenance
costs.
Nutrients - Answer Specific elements or compounds that can be DIGESTED, ABSORBED, and
METABOLIZED to promote life processes.
Dietary Essential Nutrient - Answer A nutrient not produced to an adequate extent in the
body to optimize health and performance and is therefore needed in a diet.
Chemical Composition of an Animal - Answer MOSTLY WATER
Very little CHO storage
Very very small amt of vitamin storage.
Water - Answer Essential Nutrient
All biochemical rxns occur in water
Required for digestion, absorption, transportation, dissolving nutrients, elimination of waste
products, thermoregulation.
Water Metabolism - Answer Water comprises up to 2/3 body mass
Animals can lose almost all stored fat and 50% body protein an survive.
Loss of 10% water usually results in death within ~3days
Properties of Water - Answer Most important solvent
High heat capacity to absorb heat from cellular rxns with minimal temp rise
High thermal conductivity
High latent heat of vaporization, sweating is an efficient cooling mech
High surface tension that increases amt of molecules at interface for rxn
Sources of Water - Answer Drinking
Food consumption
Answers 2026.
Nutrition Definition - Answer The science or practice of consuming and utilizing foods
Nutrition and Physiological Stages - Answer Macro and micronutrient requirements vary
dramatically during various physiological stages
E.g. High protein during rapid growth
Calcium and phosphorus increase with aging/during rapid growth
During lactation/pregnancy
Nutrition and Public Health - Answer Obesity epidemic
Human-Animal Relationships and Nutrition - Answer Pets, Horses, Agriculture, Aquaculture,
Wildlife mgmt.
Nutrition Affects Farm Profit - Answer Feed cost is greatest production cost.
Dairy: 40-60%
Beef: 85%
Swine: 75%
Poultry: 75%
Nutrition and Companion Animals - Answer Metabolic disease prevalence due to
overnutrition
Nutrition and the Environment - Answer Nitrogen losses to water and air result in
eutrophication, smog, and N2O
Phosphorus losses result in eutrophication
CH4 emissions
Eutrophication - Answer excessive richness of nutrients in a body of water which causes a
dense growth of plant life and death of animal life from lack of DO
Nitrogen Loss - Answer Volatile loss
Deposition
Runoff/Leaching
, GHG From Agriculture - Answer CH4-Livestock manure
CO2-Soil cultivation
N2O-Fertilizer/manure
Dilution of Maintenance - Answer If higher growth/production rate can be achieved for the
same maintenance cost, less nutrients are needed. Higher production dilutes maintenance
costs.
Nutrients - Answer Specific elements or compounds that can be DIGESTED, ABSORBED, and
METABOLIZED to promote life processes.
Dietary Essential Nutrient - Answer A nutrient not produced to an adequate extent in the
body to optimize health and performance and is therefore needed in a diet.
Chemical Composition of an Animal - Answer MOSTLY WATER
Very little CHO storage
Very very small amt of vitamin storage.
Water - Answer Essential Nutrient
All biochemical rxns occur in water
Required for digestion, absorption, transportation, dissolving nutrients, elimination of waste
products, thermoregulation.
Water Metabolism - Answer Water comprises up to 2/3 body mass
Animals can lose almost all stored fat and 50% body protein an survive.
Loss of 10% water usually results in death within ~3days
Properties of Water - Answer Most important solvent
High heat capacity to absorb heat from cellular rxns with minimal temp rise
High thermal conductivity
High latent heat of vaporization, sweating is an efficient cooling mech
High surface tension that increases amt of molecules at interface for rxn
Sources of Water - Answer Drinking
Food consumption
