ANSC 1401 EXAM 3 Questions With 100% Correct Answers

ANSC 1401 EXAM 3 Questions With 100% Correct Answers Concentrates - answerhigh in energy, low in fiber, highly digestible (grains: corn, wheat) carbonaceous - answerconcentrates: low in protein, cereal grains, molasses, corn, wheat, oats nitrogenous - answerconcentrates: high in protein; such as tankage, dairy products (soybean meal, cottonseed meal) roughages - answerlow in energy, high in fiber, less digestible; grasses, hays carbonaceous - answerroughages: low in protein; mature grass hay, stover, mature grain silage nitrogenous - answerroughages: high in protein; legume hay and silage, growing pasture and silage water - answerwhat is the cheapest and most abundant nutrient? T - answerT/F: an animal will die more quickly from lack of water than from lack of any other nutrient 10-14% - answerdeath occurs after how much loss of water in the body? drinking, ingested (contained in/on feed), metabolic (breakdown of nutrients) - answerwhat are the sources of the nutrient of water? function of water - answer1. transport of nutrients and excretions 2. in chemical reactions and as solvent properties 3. body temperature regulation (body temp fluctuates w/o causing distress; may fall to 93°F at night, rise 105°F in daytime; sweat) 4. maintenance of shape of body cells 5. lubrication and cushioning T - answerT/F: water quality is just as important as water availability proteins - answernutrients composed of amino acids (22) amino acids - answerbuilding blocks of proteins amino acids→peptide→polypeptide→protein - answerwhat is the structure of proteins? protein analysis - answerdetermine N content and multiply by 6.25 (100/16% N in protein) nonprotein nitrogen (NPN) - answera substance that contains nitrogen that is not apart of amino acids; urea, biuret urea - answerH₂N-C-NH₂; much cheaper source of protein proteins - answerwhat does bacteria need to function? function of proteins - answer1. basic structural unit of animal body 2. body metabolism: enzymes, hormones, immune antibodies, hereditary transmission structures are composed of proteins 3. energy source: excess will be excreted or stored as fat/muscle hormones - answerwhat causes growth? carbohydrates (CHO) - answermain source of energy for our bodies photosynthesis - answerproduces CHO's: 6CO₂ + 6H₂O + 673 (calories of radiant energy from sunlight) Chlorophyll: C₆H₁₂O₆ + 6CO₂ monosaccharides - answer(C₆H₁₂O₆) simple sugars/one sugar molecule; glucose, fructose, galactose disaccharides - answer(C₆H₂₂O₁₁) two sugar molecules trisaccharides - answerraffinose (glucose + fructose + galactose); bacteria in some animal stomachs can degrade polysaccharides - answermany sugar molecules; long chain or branched molecules of several disaccharide subunits; starch, cellulose, lignin T - answerT/F: can monogastric animals can only use starch? function of proteins - answerprovide energy and heat; excess will be stored as fat (more of our energy comes from CHO's)