Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Chapter 5, Problem 19RA
Explain how energy is obtained from the
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Chapter 5 Solutions
Human Physiology
Ch. 5 - Define the term glycolysis in terms of its initial...Ch. 5 - What are the initial substrates and final products...Ch. 5 - Describe the physiological functions of lactic...Ch. 5 - Compare the fate of pyruvate in aerobic and...Ch. 5 - Draw a simplified citric acid cycle and indicate...Ch. 5 - Explain how NADH and FADH2 contribute to oxidative...Ch. 5 - Explain how ATP is produced in oxidative...Ch. 5 - Describe glycogenesis and glycogenolysis, and...Ch. 5 - Explain the significance of gluconeogenesis and...Ch. 5 - Prob. 6aCP
Ch. 5 - Prob. 6bCPCh. 5 - Describe transamination and deamination and...Ch. 5 - List five blood-borne energy carriers and explain,...Ch. 5 - Prob. 1RACh. 5 - In anaerobic metabolism, the oxidizing agent for...Ch. 5 - When skeletal muscles lack sufficient oxygen,...Ch. 5 - The conversion of lactic acid to pyruvic acid...Ch. 5 - Which of these statements about the oxygen in the...Ch. 5 - In terms of the number of ATP molecules directly...Ch. 5 - Ketone bodies are derived from
Ch. 5 - Prob. 8RACh. 5 - The conversion of glucose 6-phosphate to free...Ch. 5 - The formation of glucose from pyruvic acid derived...Ch. 5 - Which of these organs has an almost absolute...Ch. 5 - When amino acids are used as an energy source,
Ch. 5 - Intermediates formed during fatty acid metabolism...Ch. 5 - State the advantages and disadvantages of the...Ch. 5 - What purpose is served by the formation of lactic...Ch. 5 - Describe the effect of cyanide on oxidative...Ch. 5 - Describe the metabolic pathway by which glucose...Ch. 5 - Prob. 18RACh. 5 - Explain how energy is obtained from the metabolism...Ch. 5 - Prob. 20RACh. 5 - Why is the production of lactic acid termed a...Ch. 5 - Prob. 22RACh. 5 - What three molecules serve as the major substrates...Ch. 5 - A friend, wanting to lose weight, eliminates all...Ch. 5 - Suppose a drug is developed that promotes the...Ch. 5 - For many years, the total number of molecules of...Ch. 5 - People who are starving have very thin arms and...Ch. 5 - Prob. 28RACh. 5 - Prob. 29RACh. 5 - Prob. 30RACh. 5 - Prob. 31RACh. 5 - Prob. 32RACh. 5 - Prob. 33RA
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- All of the following statements about amino acid metabolism in humans are true except: The process metabolizes both essential and nonessential amino acids. The process removes the a-amine group from an amino acid. The urea cycle generates arginine, a nonessential amino acid. The urea cycle is unusual in that no ATP is produced or hydrolyzed.arrow_forwardFor people who want to lose weight, one of the most popular diets is a protein-rich, carbohydrate, and fat-free diet. One risk of this diet is the formation of kidney stones. Explain whyarrow_forwardEnzymes that digest carbohydrates are produced by what organs?arrow_forward
- Describe the two fates of glycerol after it has been converted to an intermediate of glycolysis. Describe what happens to the level of blood lipids after a meal rich in fat. What happens to the products of triglyceride digestion as they pass into the cells of the intestinal mucosa?arrow_forwardExplain why fish larvae are susceptible to the problems associated with starvation.arrow_forwardName two end products of protein metabolism. (A) urea and uric acid B vitamin D and vitamin K C) lecithin and uremia D) creatinine and aldosteronearrow_forward
- An example of an enzyme responsible for the chemical digestion of unsaturated triglycerides is: a-Amylase b-Pepsin c-Lipase d-Trypsinarrow_forwardOne consequence of starvation is a reduction in muscle mass. What happens to the muscle proteins?arrow_forwardDigestion is the first stage in the extraction of energy from food, but no useful energy is acquired during this stage. Why is digestion considered a stage in energy extraction?arrow_forward
- The body doesn’t have a reserve of proteins or amino acids for energy production. Which class of protein may be used initially during fasting to maintain glucose and energy levels? What is the difference between a glucogenic and ketogenic amino acid and why are both important during fasting?arrow_forwardDescribe the digestion of carbohydrates in the body.arrow_forwardAfter the first step in the metabolism of amino acids, which of the following statements are true? a. Alpha ketoglutarate gets converted to Glutamate b. Alpha amino acid gets converted to beta keto acid c. Alpha ketoglutarate gets converted into Glutamine d. Alpha amino acid gets coverted to alpha keto acidsarrow_forward
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