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ANSC 221 Exam 1 Review Guide Questions and Answers Verified A+ What is the first recorded nutritional experiment? ️️Book of Daniel in the Bible What did Beumont discover together with Alexio St. Martin? ️️digestion occurs at the same time but at different rates and that the noises o...

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ANSC 221 Exam 1 Review Guide Questions and Answers
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What is the first recorded nutritional experiment? ✔️✔️Book of Daniel in the Bible



What did Beumont discover together with Alexio St. Martin? ✔️✔️digestion occurs at the same time
but at different rates and that the noises of the digestive system are contractions



Who was responsible for the health of the Limeys (British Navy)? Why are they called Limeys?
✔️✔️Lind (1747)



What was the significance of the single plant feeding experiment? ✔️✔️proved that we need to feed a
variety of nutrients from various sources



Who named vitamins after vital amines? ✔️✔️Funk



Who is credited with "Life is a chemical process", and is called the Father of Nutrition? ✔️✔️Lavoiser



What are the major differences and similarities in composition between animals and the plant materials
that serve as their food? ✔️✔️Animals: made up of lots of mineral (protein) (Ca&P) and store extra
energy as fat



Plants: made up of C,H,O, (P&K), and have low protein



Which could best be called the MOST IMPORTANT NUTRIENT? ✔️✔️water



Which nutrient class provides most of the energy in livestock diets? ✔️✔️carbohydrates



Which nutrient class has the most energy per gram? ✔️✔️fats

,Which nutrient class provides energy only after requirements for it are met? ✔️✔️fats?



Which nutrient classes do NOT provide any energy? ✔️✔️vitamins, minerals, water



Which nutrient class is analyzed as crude fuber and NFE? is soluble in ether? is analyzed by kjeldahl
procedure? is analyzed by N X 6.25? ✔️✔️Crude fiber and NFE = carbohydrates

Soluble in ether = fats

analyzed by kjeldahl procedure = proteins

analyzed by Nx6.25 = protein



How much energy do fats, carbohydrates and proteins have in relation to each other? ✔️✔️4 calories
for carbs and protein

9 calories for fats



How much water loss is fatal? ✔️✔️12%



What are 3 sources of water? ✔️✔️drinking water

water in feed

metabolic water



What are 3 properties of water that aid animal life? ✔️✔️high dielectric constant

high specific heat

high latent heat of vaporization



Explain the importance of High Dielectric Constant, High Latent Heat of Vaporization, and High Specific
Heat to the animal, and give an example. What do each of these mean, and what does their
consequence mean for animals? ✔️✔️High dielectric constant = high polarity of the molecule, water
dissolves many things

, High latent heat of vaporization = takes a lot of energy to change water from liquid into vapor (sweat)



High specific heat = takes a lot of heat to change temperature much, helps maintain proper body
temperature



Which physical principle is working to help cool a dog when it pants? ✔️✔️high latent heat of
vaporization



Which physical principle is working to help move nutrients to the cells? ✔️✔️high dielectric constant



What are the major functions of water for animals? ✔️✔️movement of nutrients, constant body
temp, and medium for chemical reactions, synovial fluid, CSF, sound transmission in ear, light
transmission in eye



What are the consequences of too little water? ✔️✔️decrease food intake, heart rate increase,
hemoconcentration/ poor circulation, increase temperature, increase respiration rate, death



Why is water such a good substance for maintaining constant body temperature? ✔️✔️has a high
specific heat



How does water help maintain constant body temperature? ✔️✔️sweating



In what circumstance is metabolic water important in animals? ✔️✔️for hibernating/water-conserving
animals



How are carbohydrates classified? List 2 pentoses, 4 hexoses, 4 dissacharides (and the monosaccharides
they are made of), 3 polysaccharides. ✔️✔️classified as: made up of Carbon, Hydrogen, Oxygen (2:1
ratio H to O), they are sugars, and their function is for energy



Pentoses: Arabinose, Xylose, Ribose

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