ANSC 221 EXAM 1 QUESTIONS AND ANSWERS
Who had the idea for the single plant feeding experiment which stimulated the Golden
Age of Nutrition - Answers -Dr. Stephen Babcock
Who is called the Father of Nutrition and is credited with recognizing "Life is a chemical
process?" - Answers -Antoine Lavoisier
List the 6 classes of nutrients - Answers -water, proteins, carbohydrates, lipids,
vitamins, minerals
What property of water makes it so useful for transporting nutrients and as a medium for
chemical reactions? - Answers -High dielectric constant
What property of water is operating when an animal is cooled by sweating? - Answers -
High latent heat of vaporization
What are 3 general (Different) sources of water for animals? - Answers -drinking water,
water in feed, metabolic water
Which nutrient class contains the most energy per gram? - Answers -fats
Which nutrient class comprises most of livestock diets (excluding water)? - Answers -
carbohydrates
Carbohydrates and fats are composed of the same ELEMENTS; what is the difference
in elemental composition that partly explains the difference in energy content? -
Answers -Both are made up of CHO, but fats contain much less oxygen than
carbohydrates, which leaves more carbon and hydrogen relatively to oxidize to produce
energy
Carbohydrates are composed of what kinds of molecules? - Answers -sugars, or
monosaccharides
What is the function of carbohydrate in the diet? To supply what? - Answers -energy
What is/are the functions of fat in the diet? - Answers -store energy, supply essential
fatty acids (most important)
Proteins are composed of what kinds of molecules? - Answers -amino acids
What are the functions for protein in the diet? - Answers -First to supply amino acids to
the body, so the cells can produce protein. It supplies energy in excess and provides
structure
, Distinguish between true protein (protein that is really protein) and crude protein? -
Answers -True protein is composed of amino acids connected together by peptide
bonds in complex molecules, while Crude Protein is our estimate of that, based on
nitrogen content
Which of the following is a pentose? - Answers -ribose
What are the 2 main concerns about feeding antibiotics? - Answers -Antibiotic residues
remaining in animal tissues, and microbial resistance to antibiotics
Monosaccharide that cellulose is composed of - Answers -glucose
Substance in protein used to distinguish protein from starch and cellulose - Answers -
nitrogen
Form of starch in plants with a straight-chain structure - Answers -amylose
Substance in plants that animals cannot digest without microbial help - Answers -
cellulose
Table sugar - Answers -sucrose
Form of polysaccharide stored in animals - Answers -glycogen
Indigestible substance in crude fiber that interferes with digestion of other nutrients -
Answers -lignin
Monosaccharide that starch is composed of - Answers -glucose
milk sugar - Answers -lactose
What is the difference between starch and cellulose? Discuss the structure, not only
digestibility. - Answers -Starch is 2 glucoses with alpha bonds, and cellulose is 2
glucoses with beta bonds, which makes a big difference in digestibility.
Destroyed by thiaminase - Answers -thiamin
1,25-dihydroxycholecalciferol is the active form - Answers -Vitamin D
Vitamin that can be interfered with by avidin in raw egg white, which would result in skin
lesions - Answers -biotin
Vitamin that is part of acetyl-coenzyme A and a deficiency symptom is goose stepping
in pigs - Answers -pantothenic acid
Who had the idea for the single plant feeding experiment which stimulated the Golden
Age of Nutrition - Answers -Dr. Stephen Babcock
Who is called the Father of Nutrition and is credited with recognizing "Life is a chemical
process?" - Answers -Antoine Lavoisier
List the 6 classes of nutrients - Answers -water, proteins, carbohydrates, lipids,
vitamins, minerals
What property of water makes it so useful for transporting nutrients and as a medium for
chemical reactions? - Answers -High dielectric constant
What property of water is operating when an animal is cooled by sweating? - Answers -
High latent heat of vaporization
What are 3 general (Different) sources of water for animals? - Answers -drinking water,
water in feed, metabolic water
Which nutrient class contains the most energy per gram? - Answers -fats
Which nutrient class comprises most of livestock diets (excluding water)? - Answers -
carbohydrates
Carbohydrates and fats are composed of the same ELEMENTS; what is the difference
in elemental composition that partly explains the difference in energy content? -
Answers -Both are made up of CHO, but fats contain much less oxygen than
carbohydrates, which leaves more carbon and hydrogen relatively to oxidize to produce
energy
Carbohydrates are composed of what kinds of molecules? - Answers -sugars, or
monosaccharides
What is the function of carbohydrate in the diet? To supply what? - Answers -energy
What is/are the functions of fat in the diet? - Answers -store energy, supply essential
fatty acids (most important)
Proteins are composed of what kinds of molecules? - Answers -amino acids
What are the functions for protein in the diet? - Answers -First to supply amino acids to
the body, so the cells can produce protein. It supplies energy in excess and provides
structure
, Distinguish between true protein (protein that is really protein) and crude protein? -
Answers -True protein is composed of amino acids connected together by peptide
bonds in complex molecules, while Crude Protein is our estimate of that, based on
nitrogen content
Which of the following is a pentose? - Answers -ribose
What are the 2 main concerns about feeding antibiotics? - Answers -Antibiotic residues
remaining in animal tissues, and microbial resistance to antibiotics
Monosaccharide that cellulose is composed of - Answers -glucose
Substance in protein used to distinguish protein from starch and cellulose - Answers -
nitrogen
Form of starch in plants with a straight-chain structure - Answers -amylose
Substance in plants that animals cannot digest without microbial help - Answers -
cellulose
Table sugar - Answers -sucrose
Form of polysaccharide stored in animals - Answers -glycogen
Indigestible substance in crude fiber that interferes with digestion of other nutrients -
Answers -lignin
Monosaccharide that starch is composed of - Answers -glucose
milk sugar - Answers -lactose
What is the difference between starch and cellulose? Discuss the structure, not only
digestibility. - Answers -Starch is 2 glucoses with alpha bonds, and cellulose is 2
glucoses with beta bonds, which makes a big difference in digestibility.
Destroyed by thiaminase - Answers -thiamin
1,25-dihydroxycholecalciferol is the active form - Answers -Vitamin D
Vitamin that can be interfered with by avidin in raw egg white, which would result in skin
lesions - Answers -biotin
Vitamin that is part of acetyl-coenzyme A and a deficiency symptom is goose stepping
in pigs - Answers -pantothenic acid
