ANSC 221

Carl Woese - Answer Devised a system of classification based on the cellular organization of organisms (three-domain system) Cell Theory - Answer (Rudolph Virchow) The idea that all living organisms are comprised of one or more cells, that cells are the smallest unit of life, and new cells can only come from pre-existing cells. Transmission Electron Microscope (TEM) - Answer -beams of electrons transmitted through sample -thin slices stained with heavy metal Scanning Electron ...

What are the differences between grasses and legumes? advantages and disadvantages of each. - Answer Grasses are mainly a source of Energy and legumes a source of protein. Legumes have a symbiotic relationship with a bacterium which allows it to utilize N from the air and turn it into ammonia. Legumes also improve soil fertility, are high in Ca, Vit a, P and trace minerals. high yield of palatable feed/acre possible. Often there can be a problem with bloat. Grasses have the ability to grow in...

Antoine Lavoisier - Answer father of nutrition, "life is a chemical process" Dr. Stephen Babcock - Answer idea for the single plant feeding experiment which stimulated the Golden Age of Nutrition, Milk fat/Babcock test Book of Daniel - Answer first recorded nutritional experiment Dr. William Beaumont - Answer army doc, looked at hole in stomach of Alexio St. Martin Funk - Answer vitamin after "vital amine" Lind - Answer scurvy and citrus 6 classes ...

Organ in the chicken corresponds to the stomach of the pig - Answer proventriculus A big difference between ruminants and nonruminants is that ruminants rely on VFA's much more for their source of energy. T?F - Answer True Which is the following is NOT one of the things the bacteria do for the ruminant Digest cellulose Manufacture B vitamins Manufacture essential amino acids Emulsify and digest fats Produce VFAs - Answer bacteria doesnt digest fats Which feed fraction...

Gross Energy - Answer amount of energy that can be derived from feed by combustion; all the energy in the feed (not all is available to animals) Digestible energy - Answer GE - Feces; energy not released in feces therefore it was absorbed, still not all used by animal Metabolizable energy - Answer GE-Feces-Urine and gas; left after accounting for all three excretions; still not all available to animal Net energy - Answer ME - Heat increment; heat of digestion; energy that th...

ANSC 221 Exam 2 Questions With 100% Correct Answers Proventriculus What organ in the chicken corresponds to the stomach of the pig? True A big difference between ruminants is that ruminants rely on VFA's much more for their source of energy. Emulsify and digest fats (Bile) Which of the following is NOT one of the things the bacteria do for the ruminant: a. Digest cellulose b. Manufacture B Vitamins c. Manufacture essential amino acids d. Emulsify and digest fats e. produce ...

ANSC 221 EXAM 2 Questions With Verified Answers lips -most important for animals without hands, prehension (horse), sifting food, swallowing; -least important to chicken (no lips, beak) lips of pigs immobile, used for protection teeth mastication, particle size reduction -chewing important for ruminant animals-more they chew, more HCO3 produced, affects rumen fermentation tongue swallowing teeth carnivore tearing teeth omnivore can chew food teeth pig cheek tee...

Purdue University ANSC 221 - Exam 2 Questions With Verified Answers digestion all of the chemical and physical changes that food undergoes to be absorbed absorption takes place as nutrients enter the body from the digestive tract digestive system GI tract: mouth, esophagus, stomach, small/large intestine, liver, gall bladder, pancreas mouth includes lips, teeth, tongue, salivary glands prehension grasping of food by the lips prehensile lip the top lip that has bee...

ANSC 221 Exam 2 Questions With Verified Answers Where is fat digested, primarily, and how? What is needed to do a good job? Occurs in small intestine Bile is needed to emulsify fat to be digested by enzymes Why don't the protein digesting enzymes digest the cells that make them? Pepsin is in the inactive form when secreted How is digestion of carbohydrate different in the ruminant animal (cow) than the nonruminant? Ruminant - digested by bacteria into VFA's Non-ruminant - broke...

ANSC 221 Exam II Study Guide Questions With Verified Answers what is the only grain to naturally contain carotene corn what grain is used mainly to make bread wheat which grain is used most to make beer barley what grain is low in energy and preferred for horses oats what grain often contains tannin sorghum what 2 grains weigh 56 lbs per bushel corn and sorghum what grain weighs 60 lbs per bushel wheat what weights 32 lbs per bushel oats what prot...

ANSC 221 Exam 2 Questions With 100% Correct Answers Where does the enzyme carboxypeptidase come from in the pig? pancreas Where does the enzyme pepsin come from in the dog or pig or rat? stomach Where does the enzyme pepsin come from in the cow? abomasum Where does most of the fermentation take place in the cow? rumen Where does most fermentation take place in the horse? cecum Where does particle size reduction of feed take place in the chicken? gizzard What ...

ANSC 221 Exam 2 Questions With 100% Correct Answers amylase What enzyme is produced in the mouth? Carbs What does amylase digest? pepsinogen/pepsin What enzyme is activated by HCL? Protein What does pepsin digest? lipase What enzyme digests fat? Bile What substance emulsifies fat? Liver Where is bile produced? Gall Bladder Where is bile stored? Small intestine Where is sucrase produced? Controls intestinal secretions What does Secretin do? ...

ANSC 221 Exam 2 Questions With 100% Correct Answers Site of most fermentation in the cow Rumen Site of most fermentation in the horse Cecum Organ in a bird that is like the stomach of a pig Proventriculus Organ in a bird where particle size reduction takes place Gizzard Site of bicarbonate production in a pig Pancreas (and mouth) What is the action of bicarbonate? buffers acids Organ in a cow that is like the stomach of the pig Abomasum Result of digest...

ANSC 221 Exam 2 Questions With 100% Correct Answers What is the only grain to naturally contain carotene? corn What grain is used mainly to make bread? wheat What grain is used mostly to make beer? barley What grain is low energy and is preferred for horses? oats What grain often contains tannin? sorghum What two grains weigh 56 pounds per bushel? corn and sorghum What grain weighs 60 pounds per bushel? wheat, rapeseed, flax seed What grain weighs 32 po...

UIUC ANSC 221, Exam II Questions With Verified Answers Biological Membranes Framework of the membrane is the phospholipid bilayer Hydrophobic water fearing region, faces in Hydrophilic water living region, faces out Fluid-mosaic model membrane is considered a mosaic of lipid, protein, and carbohydrate molecules Integral/Intrinsic membrane proteins transmembrane and lipid-anchored proteins Transmembrane proteins One or more regions that are physically embedded in t...

ANSC 221 Exam 2 Review Questions With Verified Answers Where does most of the VFA formation and absorption take place in the cow? rumen What compartment of the cow's stomach corresponds to the stomach of the dog? abomasum What is the organ called in chickens that corresponds to the stomach of the pig? proventriculus What compartment of the cow's stomach keeps feed particles from moving on too quickly until fermentation is complete or particle size is small enough? omasum ...

ANSC 221 Exam 2 Questions With Verified Answers Uniporter, Symporter/co-transporter, and Antiporter. There are three transporter types: electron transport chain Oxidative process of metabolism involves _________. Glycoprotein carbohydrate to protein chondroitin sulfate ________-cartilage (GAG example) cell junctions _____ adhere cells to each other and to the ECM Hormones ____ coordinate cellular activites in multicellular animals. Isotonic Equal water and s...

ANSC 221 Exam 2 Questions With 100% Correct Answers what enzyme is produced in the mouth and what does it digest? amylase, CHo what enzyme is activated by HCl and what does it digest? pepsinogen, protein what is the enzyme that digests fat? pancreatic lipase what substance emulsifies fat? bile where is the substance that emulsifies fat produced? liver where is sucrase produced? small intestine what does secretin do? controls intestinal secretions what d...

ANSC 221 EXAM 2 Questions With Verified Answers lips -most important for animals without hands, prehension (horse), sifting food, swallowing; -least important to chicken (no lips, beak) lips of pigs immobile, used for protection teeth mastication, particle size reduction -chewing important for ruminant animals-more they chew, more HCO3 produced, affects rumen fermentation tongue swallowing teeth carnivore tearing teeth omnivore can chew food teeth pig cheek tee...

Purdue University ANSC 221 - Exam 2 Questions With Verified Answers digestion all of the chemical and physical changes that food undergoes to be absorbed absorption takes place as nutrients enter the body from the digestive tract digestive system GI tract: mouth, esophagus, stomach, small/large intestine, liver, gall bladder, pancreas mouth includes lips, teeth, tongue, salivary glands prehension grasping of food by the lips prehensile lip the top lip that has bee...