Maintaining blood glucose levels above 40 mg/dL is important so that all cells are able to take in glucose to meet their energy needs. This is especially important for red blood cells and brain cells that rely very heavily on generating energy from glucose. The liver plays an important role in maintaining blood glucose, but not the muscles. Unlike liver cells, muscle cells do not make glucose from glycogen breakdown because they do not have the enzyme OA. Glycogen phosphorylase O B. Debranching enzyme OC.Glycogen synthase OD.Branching enzyme O E. Glucose 6-phosphatase
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- Fatty acids are mobilized from adipose tissue and travel in the blood to tissues that require extra energy. This presents a problem since FA's are very poorly soluble in water. This issue is solved by the use of: O Cholesteryl esters O Albumin Glycholate O Chylomicrons O CholesterolWhen 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.Which of the following substances derived from lipid catabolism serves as a precursor for glucose synthesis: acetoacetyl CoA acetone palmitate acetate O glycerol
- Which enzyme activity of the glycogen debranching enzyme is operating during the release of glucose units linked to glycogen branchpoints via a1,6 glycosidic linkage? phosphatase activity phosphorylase activity glucosidase activity transferase activityLactic acid builds up in the athlete's thigh muscle after marathon training. Compare and contrast the physiological functions and Vmax of glycogen phosphorylase in active skeletal muscle and liver. The athlete faints after a rigorous workout owing to a low blood glucose level. A liver biopsy reveals that there is an excess of glycogen in the liver. Suggestions on whatever sort of enzyme is faulty in this circumstance should be accompanied by an explanation.Triacylglycerols in adipose tissue do not enter the bloodstream as triacyglycerolsexplain
- Which of the following are true about oxaloacetate? It can cross mitochondrial membranes It is an intermediary in the synthesis of glucose from glycerol It is a lipid › It is an intermediary in glycolysis It is an intermediary in the synthesis of glucose from lactatein triacylglycerol mobilization, triacylglycerol molecules is activated by: phosphorylation hydrolysis reduction oxidationLipoic Acid is the vitamin precursor for a co-enzyme called Lipoamide A patient diagnosed with lipoic acid deficiency exhibited fatigue and muscle cramps. The muscle cramps have been related to the accumulation of specific metabolic acids. On the following list, highlight the metabolic acids that are most likely to accumulate in a lipoic acid deficiency? Note: There may be more than one. Isocitrate Pyruvate Succinate α-ketoglutarate Malate Fumarate Briefly explain.
- A stroke is caused by blocking the blood supply to the brain. What is the major end-product of glucose catabolism in brain cells during a stroke? Lactate Acetaldehyde Pyruvate Carbon dioxide Acetyl coenzyme AWhich of the following biochemical reactions should be classified as endergonic (endothermic)? conversion of glucose into amylopectin conversion of lactose into glucose and galactose conversion of glycogen into glucose conversion of sucrose into glucose and fructose conversion of amylose into glucoseMetabolic processes that generate FADH2 are: (Select all that apply). Krebs Cycle Glycolysis PDH Fatty Acid Synthesis Electron Transport Chain Gluconeogenesis Beta oxidation