After a carbohydrate-rich meal is consumed and the glucoserequirements of all tissues have been met, the liver begins tostore excess glucose in glycogen molecules. Explain the roleof the hexokinases in this phenomenon.

Q: Elevated liver NADH levels favors gluconeogenesis.Explain this statement.

A: Gluconeogenesis is a metabolic pathway that results in the generation of glucose from certain…

Q: Fatty acids appear to stimulate insulin secretion to a much greater extent when glucose is also…

A: Long chain fatty acids potentiate glucose stimulated insulin secretion. Fatty acids don't trigger…

Q: /on Gierke's disease is a glycogen storage disease that results from the absence of…

A: Glucose-6-phosphatase converts glucose-6-phosphate to glucose. Absence of glucose-6-phosphatase…

Q: Increased levels of NADH in the liver promote the process of gluconeogenesis. What do you make of…

A: Introduction: The process of synthesis of glucose or glycogen from non-carbohydrate sources in the…

Q: Administration of insulin decreases the blood concentration of ketone bodies in patients with…

A: The cells inside the body of people who are diabetic are unable to uptake glucose from blood.…

Q: During ketosis brought on by a ketogenic diet, liver gluconeogenesis rates are high

A: Ketosis is a process when body starts burning the fats for energy due to insufficient amount of…

Q: An individual has a mutation that prevents the proper formation of lactate dehydrogenase. What is…

A: Lactate dehydrogenase is an enzyme that occurs in almost all living cells. This enzyme is expressed…

Q: Only carbon skeleton of amino acids are used in glucogeneogenesis but not fatty acids. How can fatty…

A: The ketone bodies are water-soluble and can be easily transported from the liver to various tissues.…

Q: you follow a carbohydrate-free diet, certain metabolic problems occur. Describe glucogenesis and the…

A: Glucogenesis is the formation of glucose within an animal body from any product of glycolysis.…

Q: Ketone bodies are exported from liver for use by other tissues. Because many tissues can synthesize…

A: Introduction: Ketone bodies are water-soluble and energy-generating compound. For Example; acetone,…

Q: During periods of prolonged exercise, muscles burn fat released from adipocytes in addition to…

A: When exercise or work is done by animals, there is an expenditure of some compound, which in this…

Q: What reaction or process in metabolism is catalyzed by each of the following enzymes: (a) lipase;…

A: Enzymes are biological catalysts that can fasten the reaction rate by decreasing the activation…

Q: Is the statement true or false?

A: Glycolysis is the process of breakdown of glucose to obtain energy by the cells for fulfilling their…

Q: Triacylglycerols in adipose tissue do not enter the bloodstream as triacyglycerolsexplain

A: Triacylglycerols, also known as triglycerides, are a type of fat (lipid) found in your blood. A…

Q: What impact would an increase in intramitochondrial oxaloacetate have on fatty acid synthesis?…

A: Fatty acids are carboxylic acids with long hydrocarbon chains. Fatty acids undergo β oxidation when…

Q: Why is the regulation of phosphofructokinase by energy charge not as important in the liver as it is…

A: A  biological cell is a hub of biochemical and metabolic activities. Enzymatic reactions occur in…

Q: People with beriberi, a disease caused by thiamine deficiency, have elevated levels of blood…

A: Pyruvate dehydrogenase is the enzyme responsible for converting pyruvate into acetyl CoA during the…

Q: Describe the mechanism of action of salivary amylase. Explain how it works and on what type of…

A: Carbohydrate along with protein, fat and water comprise macro-molecules which are required in larger…

Q: Elevated liver NADH levels favors gluconeogenesis. Explain this statement?

A: Gluconeogenesis is rather literally translated as 'new glucose synthesis'. It is a metabolic process…

Q: List reaction or pathways of fatty acid oxidation and biosynthesis affected by insulin and glucagon.

A: Insulin is the hormone synthesized by the β cells of pancreas. Whereas glucagon is synthesized by…

Q: Hexokinase is found in almost all animal cells, except the liver and pancreas, while glucokinase is…

A: Hexokinase is the enzyme that has the ability to transfer an inorganic phosphate from the ATP to the…

Q: The rate-limiting enzyme in bile acid synthesis is _____________.

A: The process of bile acid synthesis is a multiple-step process of synthesis of bile acids (cholic…

Q: W ich of the following statements about glucose metabolism is correct?

A: Glucose metabolism:      It involves multiple processes: glycolysis, gluconeogenesis,…

Q: The disease beriberi, which results from a dietary deficiency of vitamin B1 (thiamine), is…

A: Thiamine: a. Thiamine is a water-soluble vitamin and has a specific coenzyme which is thiamine…

Q: which is incorrect regarding fatty acid biosynthesis on the given statements?

A:

Q: Although animals cannot synthesize glucose from acetyl-CoA, if a rat is fed 14C-labeled acetate,…

A: Muscles are defined as the soft tissue that is responsible for bringing movement in different body…

Q: Describe five possible fates for glucose 6-phosphate in the liver.

A: The liver is a major metabolic site. The metabolism of drugs, detoxification, amino acid metabolism…

Q: List the steps in the digestion of dietary triacylglycerols and their transport into the…

A: Chylomicrons are in the intestinal cells and relay lipids from the digestive tract and mix them in…

Q: Describe the function of ferritin in the absorption of iron.

A: Blood is a specialized connective tissue composed of two components plasma and formed elements.…

Q: Only the carbon skeleton of amino acids is used in gluconeogenesis but not fatty acids. How can…

A: Fatty acid oxidation is defined as the metabolic pathway or cycle in which the fats are metabolized…

Q: Glucagon increases hepatic gluconeogenesis by decreasing the cytosolic concentration of which of the…

A: The hormone glucagon sends signals to the liver to produce more glucose and its release when the…

Q: Glucose binds to glycogen phosphorylase and competitively inhibits the enzyme. What is the…

A: Glucose belongs to the category of carbohydrates and is a monosaccharide. Plants and some algae…

Q: What is the consequence of complete inhibition of all mutases in liver cells? a. Liver cannot…

A: A mutase is an isomerase enzyme that catalyses the mobility of a functional group through one…

Q: The products of bile acid synthesis are _____________ and _____________.

A: Bile juice/ acid is produced by liver and its help in emulsification of fats. Bile also helps to…

Q: Experienced runners know that it is poor practice to ingest large amounts of glucose immediately…

A: Bio molecules also known as biological molecules. These are the molecules which are produced by…

Q: Phosphoglucomutase is crucial for glycogen breakdown as well as for glycogen synthesis. Explain the…

A: Phosphoglucomutase is an enzyme that transfers a phosphate group from the 6th to the 1st position on…

Q: Describe how the glucose-alanine cycle acts to transportammonia to the liver

A: Introduction: The Cahill cycle, also known as the alanine cycle or the glucose-alanine cycle, is a…

Q: Both glycogen and triacylglycerols are energy sources usedby the body. Suggest a reason why both are…

A: Glycogen is a multibranched polysaccharide polymer of glucose that is synthesized in the liver and…

Q: In gluconeogenesis, only the carbon skeletons of amino acids, not fatty acids, are utilised. So how…

A: The metabolic process or cycle in which lipids are digested or broken down to release or create…

Q: Predict the physiological effects of a mutation that resulted in a deficiency of enteropeptidase.

A: Enteropeptidase is a proteolytic enzyme produced by intestinal mucosal epithelial cells. They brings…

Q: Which of these enzymes is not involved in both glycolysis and gluconeogenesis Phosphoglycerate…

A: Glycolysis is the splitting of a glucose molecule into two pyruvate molecules. The glycolysis takes…

Q: When blood [glucose] is high and a cell’s energy needs are met, insulin stimulates glycogen…

A: The hormone created by the pancreas includes insulin. It functions to regulate the blood sugar…