WGU C785 Biochemistry Final Exam Latest 2022

WGU C785 Biochemistry Final Exam Latest 2022. Which of the following enzymes is part of both the TCA cycle and the electron transport chain? ATP synthase (Complex I) NADH oxidoreductatase Cytochrome c Succinate dehydrogenase (Complex II) – Succinate dehydrogenase ATP is used to carry energy within the cell. The majority of energy in ATP is stored within which of the following bonds indicated on the image below? 3 1 2 4 - 1 In the case of a deficiency in phenylalanine hydroxylase which of the following amino acids will become essential? Cysteine Tyrosine Typtophan Methionine Homocysteine - Tyrosine In the electron transport chain, which of the following compounds in the terminal electron acceptor? O2 FAD NAD+ H2O - O2 Which of the following is an example of mechanical work? Cleavage of a high energy phosphate bond to facilitate muscle contraction Movement of glucose from the intestinal lumen into the cell Formation of UDP glucose from glucose 1-phosphate Oxidation of glucose to pyruvate - Cleavage of a high energy phosphate bond to facilitate muscle contraction After fasting for 6 hours which of the following would be consistent with the hormone levels of this individual? 1 2 3 4 5 - 4 Fructose 1-6 Biophosphate will enhance the activity of which of the following enzymes? Pyruvate dehydrogenase complex hexokinase Pyruvate kinase pyruvate dehydrogenase kinase Glycogen phosphorylase - pyruvate kinase Which of the following tissues can use glucose, but not fatty Acids, as a source of fuel? Skeletal Muscle Cardiac tissue Liver Red Blood Cells Adipose - Red Blood Cells Within the red blood cell, NADPH is required for which of the following processes? The Conversion of pyruvate to Acetyl CoA The Oxidation of hemoglobin The conversion of pyruvate to lactate The synthesis of ribulose 5-Phosphate The Reduction of Glutathione - The Reduction of Glutathione There are several anaplerotic reactions required to replenish intermediates of the TCA cycle. All of the following compounds can be used for these anaplerotic reactions EXCEPT: Aspartate Propionyl Glutamate Odd Chain fatty acids Glucose - Glucose Hereditary fructose intolerance is a rare recessive disease caused by a mutation in exon 5. The mutation creates a new Ahall restriction within the exon. In this graphic: the husband had al b deficiency the wife has 2 wild alleles Jill has wild recessive jack and jill have same genes - the wife has 2 wild allells A 3-year-old boy who presented with generalized hypotonia, severe psychomotor development delay, and severe lactic acidosis following ingestion of a high carbohydrate meal was diagnosed with a deficiency in pyruvate dehydrogenase (Xlinked recessive). Supplementation of which vitamin may be beneficial to this individual: Pyridoxal Phosphate (PLP) Folate Cobalmin (B12) Thiamine - Thiamine Which of the following hormones binds to a receptor tyrosine kinase? Epinephrine Cortisol Glucagon Insulin - Insulin Which of the following is true regarding single point mutations to a genomic DNA sequence? changes to the DNA sequence will always result in an amino acid change in the primary sequence single nucleotide changes to the DNA sequence may have no impact on the primary sequence of a protein single nucleotide changes to DNA will always introduce a frame shift single nucleotide changes will always introduce a nonsense mutation - single nucleotide changes to the DNA sequence may have no impact on the primary sequence of a protein NADH generated in the cytosol must be transported across the mitochondrial membrane in order to be oxidized by the electron transport chain. Which can be used to facilitate movement of cytosolic NADH into the mitochodria? Malate-aspartate shuttle GLUT 4 Transport Citrate shuttle Na/K+ ATPase pump - Malate-aspartate shuttle Prokaryotic genes are organized which contain a series of genes that are regulated by a common promoter. In the case of an inducible operon, the operaon is transcribed: when the inducer is bound to the repressor when the repressor is bound to the operator when the inducer is bound to the operator when both the repressor and inducer are bound to the operator - when the inducer is bound to the repressor When the pancreatic beta cells sense an increase in glucose, the release of insulin is facilitated through which of the following mechanisms? increase in intracellular calcium increase in intracellular potassium decrease in intracellular ATP decrease in intracellular Calcium - increase in intracellular calcium You have identified a mutation in the c subunit in the ATP synthase. The mutation changes the glutamate residue, (that facilitates proton pumping into the mitochondrial matrix), to a glycine. The inability to dissipate the proton gradient will have which of the following impacts on the electron transport chain? Decreased ATP synthesis Increased ATP synthesis Increased NADH oxidation Increased Oxygen Consumption - Decreased ATP synthesis During an overnight fast, which of the following pathways is the primary source of glucose required for the maintenance of blood glucose levels? Lipolysis from adipose stores Muscle glycogenolysis We offer help with class assignments and essay writing for all majors with a guaranteed pass. For assistance contact Tutor Alpha: