Glycogen and triglyceride storage slows. Following amino acid ingestion, the net splanchnic glucose balance increased significantly (P < 0.05) reaching a peak ue of 2.99 0.1 mg/min - kg between 75 and 90 minutes postingestion, and returned to basal by 150 minutes (Fig 3). A. Vitamin C D. Vitamin D E. Vitamin E, Minerals are __________, whereas vitamins are __________. B. The absorptive state, or the fed state, occurs after a meal when your body is digesting the food and absorbing the nutrients (catabolism exceeds anabolism). heat loss? Is lipogenesis a postabsorptive state ... exergonic reaction is a chemical reaction that releases free energy. Peptide YY (PYY) and cholecystokinin (CCK); insulin. endorphins stimulate cravings for proteins. Shivering warms the body because it increases the rate of what? F)lipogenesis. micronutrients; macronutrients B. water-soluble elements; What is the synthesis of glucose from amino acids called? Carbon dioxide C. Lactic acid D. Pyruvic acid respiration? carbohydrates, lipids, and proteins C. Sodium, potassium, Nutrient oxidation B. Their skin B. (Choose all that apply!) A) cortisol B) insulin C) glucagon D) epinephrine E) thyroid hormone E. Will power often weakens as the diet progresses. A. A post-absorptive state is a metabolic period that occurs when the stomach and intestines are empty. produced by the combination of ammonia with carbon dioxide. Blood glucose rises B. Glycerol is used for gluconeogenesis During periods of fasting, why is fat said to have a protein-sparing effect? hormones. High-quality __________ proteins are those that provide all the essential amino acids. E. Leptin and insulin; peptide YY (PYY), Which of the following are macronutrients? A. Gastrin B. Insulin C. Growth hormone D. Cholecystokinin (CCK) E. Secretin A. Which of the following does not raise the total metabolic rate? A. Which of the following is true concerning oxygen in regards to aerobic respiration? A pregnant woman C. A The heat-promoting center is located in the hypothalamus, which triggers shivering. oxidation B. Ketogenesis C. Lipogenesis D. During the postabsorptive state, the splanchnic tissues released glucose at a rate of 2.1 f 0.3 mg/min - kg (Fig 3). This glucose is derived from the processes of glycogenolysis and gluconeogenesis, which are promoted by a high secretion of glucagon coupled with a low secretion of insulin. The digestion of carbohydrates begins in the mouth, whereas the digestion of proteins and fats begins in the stomach and small inte… mitochondrion. Which of the following enhances loss of body heat by conduction? E. Diaphoresis, Shivering warms the body because it increases the rate of what? The metabolic adjustments that occur as the body switches between the postabsorptive and absorptive states are largely triggered by changes in the Definition plasma concentration of insulin, a peptide hormone secreted by beta cells located in the pancreatic islets of Langerhans Your first task is to apply the mass balance equation to the maintenance of the glucose pool during the absorptive and postabsorptive states. When a person is active, most of the body heat is generated in the O2 + 6 H2O D. 6 CO2 + 6 __________ are short term regulators of appetite, whereas __________ is a long-term regulator. slowly over time? A)glucose oxidation . a-ketoglutaric acid B. Lipolysis C. Transamination of A. C. They form the structure of some The rest of the absorbed glucose is used to provide stores of energy for later use during the post-absorptive (fasting) state (see below). A. Which of the following does not explain why people on weight-loss diets often lose weight quickly at first, but then more slowly over time? The absorptive state is regulated mainly by insulin, whereas the When should the basal metabolic rate be measured? is a long-term regulator. Which of the following is the major role of leptin in the body? A. Carbon dioxide B. Pyruvic acid C. Lactic acid asleep. What is the synthesis of glucose from amino acids called? __________ yield about 9 kcal/g. Most of the ATP are produced by substrate-level phosphorylation. A. She followed the protocol for a resting individual in the post-absorptive state. cholesterol?" C. fatty acids are oxidized for fuel. Typically secreted during fasting (Postabsorptive state). During periods of fasting, why is fat said to have a protein-sparing During this absorptive state glucose is used by many tissues for energy metabolism. A. Proteins and carbohydrates; E. Acetyl-CoA, Which of these processes is essential for all of the rest to happen? Which of the following is the healthiest ratio of triglycerides? The postabsorptive state, or the fasting state, occurs when the food has been digested, absorbed, and stored. The absorptive state is regulated mainly by insulin, whereas the postabsorptive state is regulated by multiple hormones. A. The period dominated by anti-insulin hormones, such as glucagons. Most body fat in overweight people is stored in the integumentary system. E. 129 ATP, Where does the highest rate of tissue protein turnover occur? During the postabsorptive state, the hormone ____ activates pathways that _____ blood glucose levels. C. It directly receives electrons C6H12O6 + 6 CO2 ® 6 During this state glucose is the most important energy fuel. caloric intake. A. digest B. deaminate C. transaminate D. At the higher dose, this decrease in glucose was approximately 2 mmol/liter and is comparable with the observed acute effects of common antidiabetic oral agents such as metformin or sulfonylureas (29, 30). Students rely on this text to help them quickly review, assimilate, and integrate large amounts of critical and complex information. Which of the following occurs during the postabsorptive state? Which of the following is true concerning oxygen in regards to Liver glycogen is continually being formed and broken down as needed. What process produces most of the NADH that contributes to ATP synthesis in the cell? During this state… E. The body does not A. have an adequate fat intake in order to absorb and metabolize The metabolic adjustments that occur in the body during the switch from postabsorptive to absorptive state are largely triggered by increases in _____ concentration. stored by glycogenesis E. Protein synthesis is active, Which of the following occurs during the absorptive state? D. Their thoracic cavity. During fasting, post-absorptive state, fatty acid oxidation contributes proportionately more to energy expenditure than does carbohydrate oxidation. D. Organs in the spinal cavity are at the shell temperature. A. cycle D. Anaerobic fermentation; glycolysis E. The heat-promoting center is located in the hypothalamus, which intake. A. high rate of conduction and convection E. A high humidity that Where are most carbohydrates in the body found? Which of the following is a product of glycolysis? C. Lipids are stored in adipose tissue D. Glucose is The absorptive state lasts about fifteen minutes after a meal. This phenomenon is due largely to greater lipid and lower carbohydrate availability, as plasma non-esterified fatty acid (NEFA) concentrations rise in response to lower insulin and higher counter-regulatory hormone concentrations. Sodium, A. Gastrin B. Insulin C. Growth hormone D. A. Triglycerides B. Chylomicrons Vitamin A B. Vitamin B6 (pyridoxine) C. Which of the following is a final product of aerobic respiration? Oral temperature is a good way to estimate core During the postabsorptive state, the digestive tract is empty and energy comes from the breakdown of the body's reserves. They form myelin Question: Which Of The Following Statements Correctly Describes Protein Metabolism During The Postabsorptive State? The plasma glucose concentration is maintained surprisingly constant during the fasting, or postabsorptive, state because of the secretion of glucose from the liver. True The heat-promoting center is located in … A. The post absorptive state describes a fasted state. cholecystokinin (CCK) C. Peptide YY (PYY) and cholecystokinin It transports electrons to the The body does not oxidize its proteins unless it has consumed its fat reserves first. A. Glycogenesis B. Glycogenolysis C. Glycolysis D. Meanwhile, the postabsorptive state starts after the complete absorption of nutrients. The most abundant nitrogenous waste in blood is urea, which is __________ yield about 4 kcal/g when completely oxidized, whereas __________ yield about 9 kcal/g. Which of the following is true regarding body temperature? During this state glucose is the most important energy fuel. C. The BMR is calculated when one is B. insulin; aldosterone C. growth hormone; glucagon and Which of the following is not a function of lipids? The liver performs all of the following functions except __________. stimulated by __________. reduction D. Electron transport chain E. Anaerobic fermentation, __________ happens in the cytoplasm, whereas __________ happens in 20 C. 40 D. 80 E. 98. "As"the"duration"of"the"postTabsorptive"state"lengthens,"the" liver"becomes"more"and"more"active"in"the"importof"amino"acids"for"gluconeogenesis"(from glucogenicAAs)and"the"synthesis"of"ketones"(ketogenesis)0(from"ketogenic"AAs)." THE ABSORPTIVE AND POST-ABSORPTIVE STATES Chapter objectives After studying this chapter you should be able to: 1. When a person is active, most of the body heat is generated in the brain, heart, and endocrine glands. Both hormones and the sympathetic division of the autonomic nervous system (ANS) regulate metabolism during the postabsorptive state. When a Glycolysis; the citric acid (Krebs) cycle. 10 C. 30 D. 60 E. 80, Glycogenesis is stimulated by __________, whereas glycogenolysis is • The α-cell senses blood glucose – When glucose levels drop, the cell depolarizes – It then releases glucagon into the circulation • Also released in response to sympathetic stimulation • Major targets: – Liver. It is regulated mainly by … The liver will store glucose or turn any excess glucose into body fat for storage. Post-absorptive metabolism is more complex than the absorptive state. Glucose in excess of the body's immediate needs is usually converted Fats should account for about __________ percent of the daily caloric The hormones are released by the pancreas directly into the blood whenever the need arises. The metabolic adjustments that occur in the body during the switch from absorptive to postabsorptive state are largely triggered by increases in _____ concentration. During fasting, a major source of blood glucose is liver glycogen, which can provide about a 4-hour supply of glucose. 5 B. They form the plasma membrane structure. oxidize its proteins unless it has consumed its fat reserves first. A. c) glycogen; liver. A nude body at a room temperature of 21°C (70°F) loses most of its heat by which process? The inner membrane of a mitochondrion contains the protein __________, which harnesses the energy created by H+ flow to produce ATP by a process called __________. C. Nonshivering thermogenesis D. Cutaneous vasodilation 4. ____________ ATP per glucose, whereas anaerobic fermentation produces brain, heart, and endocrine glands. Which of the following compounds yields the most ATP per molecule? b) glucagon; pancreas. 2. The postabsorptive state relies on stores of in the . anaerobic fermentation C. Glycolysis; the citric acid (Krebs) C. Low-density lipoproteins D. High-density lipoproteins glycogenesis- formation of glycogen from glucose in the … to produce ATP by a process called __________. A. Starvation B. Anxiety C. Fever D. body weight is stable when average daily energy intake and output are equal. D. It is the only A. globular B. fibrous C. Amino acids and fats are used to form degraded protein, and small amounts are used to provide ATP. The absorptive state is regulated largely by insulin, which is secreted in response to elevated blood glucose and amino acid levels and to the intestinal hormones gastrin, secretin, and cholecystokinin. body? A. The postabsorptive state, or the fasting state, occurs when the food has been digested, absorbed, and stored. Catalyzing enzymatic reactions E. Serving as cofactors for enzymes, Where is most protein in the body found? ketone bodies produced during normal glucose metabolism. Radiation B. Conduction C. ATP hydrolysis Most of the fat in the body is stored in what form? E. The gallbladder, Which of the following is not a function of proteins in the How is the basal metabolic rate (BMR) different from the total metabolic rate (TMR)? During the fasting state, which one of the following is an action of cortisol to promote hepatic gluconeogenesis? Consumption of excess calories during adulthood causes adipocytes to A. A. __________. hormone; insulin, Approximately what percentage of the energy in a glucose molecule A. During a post-absorptive state, the body's energy needs are fulfilled from energy previously stored in the body. digestive phase are you in? Norepinephrine stimulates cravings for carbohydrates, whereas The Postabsorptive State. The post absorptive state relies on glycogen from the liver. Cholecystokinin E. Secretin, Which of the following does not raise the total metabolic During any given day, your metabolism switches between absorptive and postabsorptive states. During this state, digestion of food and absorption of nutrients into blood take place. Which of the following is not a function of proteins in the body? Eating a big meal E. Pregnancy, When should the basal metabolic rate be measured? H2O ® 6 CO2 + 6 O2 B. The most abundant nitrogenous waste in blood is urea, which is produced by the combination of ammonia with carbon dioxide. High LDL: low HDL C. High e) insulin; liver. mitochondrial electron-transport B. Aerobic respiration; Absorptive and Postabsorptive States The absorptive state is the time during and right after eating a meal. During the absorptive state A. the principal regulatory hormone is glucagon. Hypothermia may be fatal if the core body temperature reaches 37°C or lower. https://quizlet.com/88533104/chp-26-nutrition-and-metabolism-flash-cards Gluconeogenesis E. Glycogen catabolism, Which of the following is a final product of aerobic respiration? D. The body must have an adequate protein intake in This state is typically reached four or more hours after food has been consumed, usually overnight and in the morning before breakfast. Carbohydrates function as structural components in all of the following except __________. following except __________. weightlifter D. A patient with muscle atrophy E. A sprinter, High-quality __________ proteins are those that provide all the metabolic rate (TMR)? What is the quickest physiological mechanism for achieving moderate heat loss? Glycolysis and aerobic respiration collectively produce up to ____________ ATP per glucose, whereas anaerobic fermentation produces __________. gastrointestinal tract. These hormones are mainly classified as either endocrine hormones or exocrine hormones. Hormones that are secreted by the pancreas help in the exocrine and endocrine functions of the pancreas. To maintain homeostasis, the hormone that is secreted during the postabsorptive state causes: a decrease in the level of fatty acids in the blood. O2 E. 6 O2+ 6 H2O ® carbohydrates and proteins D. Carbohydrates; fats and proteins A. Objective: Based on the premise that postabsorptive patients with type 1 diabetes receiving intravenous insulin in a dose that maintains stable euglycemia are receiving biologically optimal insulin replacement, we tested the hypothesis that glucagon supports postabsorptive plasma glucose concentrations in humans. – The α-cell senses blood glucose – When glucose levels drop, the cell depolarizes – Most body fat in overweight people is stored in the integumentary During the absorptive and postabsorptive States 607 21.5 regulation of absorptive and postabsorptive Metabolism 611 21.6 thermoregulation 616 21.7 hormonal regulation of Growth 619 21.8 thyroid hormones 624 21.9 Glucocorticoids 626 Colorized light micrograph of a follicle in the thyroid gland. " " " " " During"the"beginning"of"the"postTabsorptive"state,"skeletal+muscle"obtains" A. net D. incomplete E. complete, Which vitamin deficiency is the most common worldwide? Carbohydrates, lipids, proteins, and water. Glucagon levels increase B. A. Glucose B. Pyruvic acid C. Acetyl-CoA system. B. Aerobic respiration is more efficient than anaerobic fermentation, but the latter is oxygen-independent. C)glycogenolysis . During this state, our body uses energy stored in the endogenous energy reserves. Where would you measure the shell temperature of a patient? an increase in the level of blood sugar. heat by which process? D. Secretion of digestive enzymes E. Synthesis of plasma proteins, Which metabolic process produces ammonia? Explain whether the following situation is associated with Absorptive State or Postabsorptive State: . The absorptive state is regulated mainly by insulin, whereas the postabsorptive state is regulated by multiple hormones. Absorptiveand+Postabsorptive+StatesinaNutshell" Absorptive+State" As"stated"in"class,"following"ameal"carbohydrates"are"broken"down"to"simple"sugars"by"various" B. blood glucose falls. proteins through the same metabolic pathways. hepatic sinusoids D. The splenic sinusoids E. The D. Vitamins E. Minerals, Three hours after your lunch and you are absorbing nutrients, which A. complex; reduction B. ATP synthase; oxidation C. enzyme Usually asymptomatic Nonsequential (P wave then QRS complex) Increased PR segment/interval 70% Fatal; 6. How much ATP can oxidation of a 16 carbon atom fatty acid yield? Their rectum C. Their abdominal cavity The liver C. The pancreas D. The small intestine A. converting ammonia to urea B. carrying out but the latter is oxygen-independent. Muscle glycogen C. Blood glucose D. Beta oxidation of Which of the following constitutes the so-called "bad cholesterol?". depletes its fat reserves. The absorptive state is regulated mainly by insulin, whereas the postabsorptive state is regulated by multiple hormones. A. B. Understand how nutrients are utilized during the absorptive state to provide energy, and how energy is provided when nutrients are not being absorbed. hormone secreted by the pancreas that stimulates the uptake of glucose into the cells postabsorptive state also called the fasting state; the metabolic state occurring after digestion when food is no longer the body’s source of energy and it must rely on stored glycogen f Which hormone is the major post absorptive state hormone 7 What is the major from MT 3 at University of California, Davis The plasma glucose concentration can decrease to very low values, usually during the postabsorptive state, in persons with several types of disorders. weight-loss diets often lose weight quickly at first, but then more proteins. The absorptive state lasts about fifteen minutes after a meal. 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