Which of the following would be the most likely consequence of the addition of small amounts of selenium to the diets many species of vertebrate animals especially livestock. a. It would increase the requirement for Vitamin E b. It would increase the rate of beta oxidation of fatty acids c. It would result in selenium toxicity d. It would decrease the requirement for vitamin B12 e. It would reduce the

Which of the following would be the most likely consequence of the addition of small amounts of selenium to the diets many species of vertebrate animals especially livestock. a. It would increase the requirement for Vitamin E b. It would increase the rate of beta oxidation of fatty acids c. It would result in selenium toxicity d. It would decrease the requirement for vitamin B12 e. It would reduce the

Ebk:Nutrition & Diet Therapy

10th Edition

ISBN:9780357391747

Author:DEBRUYNE

Publisher:DEBRUYNE

Chapter8: The Vitamins

Section: Chapter Questions

Problem 2SC

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Which of the following choices describes a likely metabolic consequence of thiamin deficiency in animals. Select one: a. Increased gas production in the rumen b. Impaired vision c. Decreased ATP synthesis d. Increased osmotic water influx into the lumen of the small intestine e. Increased serum cholesterol in the blood
Which of the following is true about vitamin D3 (cholecalciferol)? A. It is a sterol. B. It is a hormone precursor. C. Humans enzymatically synthesize their own Vitamin D3. D. It is converted into a biologically active form by UV light from sunlight.
Which of the following statements describing the mobilization and utilization of fatty acids in the body is INCORRECT? Answers A-E A. Fatty acids are excellent fuels for skeletal muscle. B. On a molar basis, fatty acid oxidation to carbon dioxide and water yields more ATP than do carbohydrates C. It is Coenzyme A derivatives of fatty acids that are beta-oxidized D. Fatty acids are transported in plasma bound to albumin E. Fatty acid oxidation to carbon dioxide and water does not require a functional Krebs cycle
Which of the following is true?a. Triglycerides have the least energy content per gram of the three majorenergy sources in the body.b. Fat catabolism generates new triglycerides for storage in adipose tissue.c. By mass, the total-body content of carbohydrates exceeds that of total triglycerides.d. Catabolism of fatty acids occurs in two-carbon steps.e. Triglycerides are the major lipids found in plasma membranes
Which of the following statements regarding glycogen are true? A. Glucose from glycogen can be metabolized anaerobically B. Approximately 1-2% of muscle weight is glycogen, whereas 10-15% of liver weight is glycogen C. It is faster for the muscle to obtain energy from glycogen than from lipids D. A and B are true E. B and C are true F. Both A, B, and C are true
Which of the following statements is/are TRUE?A. Cells in a resting metabolic state have low ATP and NADH.B. Cells in a highly active metabolic state have high ATP but low NADH.C. Cells in a highly active metabolic state has high NADH but low ATP.In the stomach, the dietary fats are emulsified by?A.peristalsisB.pancreatic lipaseC. bile saltsD. lingual lipase
Which of the following describes the function of lipoprotein lipase? Select one: a. It catalyzes the synthesis of lipoproteins b. It helps recycle unused cholesterol by converting to bile salts c. It helps to transport VLDL's in the blood d. It cleaves fatty acids from chylomicrons e. It helps to increase concentration of "good cholesterol"
Fructose and glucose are both monosaccharides, but the body metabolizesthese sugars differently. For example, glucose stimulates insulin releasefrom the pancreas (see section 28.4); fructose does not. Moreover, insulinstimulates leptin release. Finally, fructose is more likely than glucose tobe converted to fat. Use this information to propose an explanation for thecorrelation between the skyrocketing consumption of high fructose cornsyrup since 1970 and the rise in obesity during the same period.
Food faddists often make exaggerated claims about certain types of food. For instance, some promoters of weight-loss diets claim that carbohydrate (for example, rice) is harmful and should be omitted from the diet or intake of carbohydrate significantly reduced. There is a saying that “fats burn in the fire of carbohydrates”. What is the meaning of this? What would be the effect of a significant reduction in carbohydrate intake on the utilization of fats for energy? Cite the biochemical mechanisms that support your answer.
Which of the following pairs of lipid-soluble vitamin:function is/are WRONG? Vit K:synthesis of Ca-binding proteins for blood clotting U Vit C:anti-oxidant Vit E:remove free radicals Vit D:regulation of Ca and P metabolism Vit A:site of photochemical reaction in vision
One example of a stage 1 reaction in the heterotrophic breakdown of food molecules is: A. the intracellular digestion of some amino acids into NH4+ and pyruvate B. the intramitochondrial digestion of fatty acids into carbon dioxide and water C. the extracellular digestion of triglycerides into fatty acids and glycerol D. the intramitochondrial digestion of pyruvate into carbon dioxide and water E. the intracellular digestion of glucose monomers into pyruvate
When fatty acids are not completely metabolized, they are often converted into: Glucose Oxaloacetate O Amino Acid O Acetyl CoA molecules O None of these answers are correct.