Phosphorylase - Study guides, Class notes & Summaries

What neurotransmitter stimulates release of epinephrine from adrenal medulla? - Answer- acetylcholine What is a metabolite if epinephrine that suggests epi-secreting carcinoma? What is another assoc symptom? - Answer- metanephrine; assoc with HBP What does acetazolamide (carbonic anhydrase ib) treat? - Answer- glaucoma, epilepsy, altitude sickness, congestive heart failure can cause dehydration Sickle cell anemia is due to... - Answer- pt mutation of Glu -> val What is a major ne...

Somatostatin reduces the secretion of both glucagon and insulin through which of the following mechanisms? a. Somatostatin activates an activator G-protein b. Somatostatin activates MAPK cascade c. Somatostatin activates an inhibitory G-protein d. Somatostatin uses Ca+2 as a downstream signal - Answer c. Somatostatin activates an inhibitory G-protein Insulin mediated glucose uptake by muscle and adipose tissue is a result of which of the following mechanisms? a. Translocation of GLUT 4 ...

Metabolic response to incremental exercise Ans: -no further increase in VO2 with increasing work rate VO2 Max Ans: -affected by genetics and training -physiological ceiling for delivery of O2 to muscle Physiological factors influencing VO2 max Ans: -maximum ability of cardiorespiratory system to deliver oxygen to the muscle -ability of muscles to use oxygen and produce ATP aerobically Lactate Threshold (LT) Ans: point at which blood lactic acid rises systematically during incremental ex...

UNE BioChem 1005 Final Exam 2024/2025 Questions with Complete Solutions Somatostatin reduces the secretion of both glucagon and insulin through which of the following mechanisms? a. Somatostatin activates an activator G-protein b. Somatostatin activates MAPK cascade c. Somatostatin activates an inhibitory G-protein d. Somatostatin uses Ca+2 as a downstream signal - Correct Answer c. Somatostatin activates an inhibitory G-protein Insulin mediated glucose uptake by muscle and adipose ti...

Order the following steps in glycogen particle synthesis correct answers 1- The glycosyltransferase activity of glycogenin adds UDP-glucose to a tyrosine residue in glycogenin. 2- The glycogen synthase activity of glycogenin forms an α-1,4 glycosidic bonds that adds UDP-glucose to an O-linked glucose residue. 3- The glycogen synthase activity of glycogenin forms an α-1,4 glycosidic bond that adds UDP-glucose to an O-linked glucose disaccharide. 4- The glycogen synthase activity of glycogeni...

Week 6 UNE Medical Biochemistry Review Exam Questions With 100% Correct Answers Glycogen is stored primarily in the: - answerliver and skeletal muscles Pathway for synthesis and degradation are identical. True or False - answerTrue Enzymes used for Glycogen synthesis - answerPhosphoglucomutase, UDPGlc pyrophosphorylase, and Glycogen synthase Glycogen synthesis - UDPGlc pyrophosphorylase: - answerGlucose 1-P + UTP → UDPGlc Glycogen synthesis - Phosphoglucomutase - answerGlucose 6-P is i...

Week 6 UNE Medical Biochemistry Review Exam Questions With 100% Correct Answers Glycogen is stored primarily in the: - answerliver and skeletal muscles Pathway for synthesis and degradation are identical. True or False - answerTrue Enzymes used for Glycogen synthesis - answerPhosphoglucomutase, UDPGlc pyrophosphorylase, and Glycogen synthase Glycogen synthesis - UDPGlc pyrophosphorylase: - answerGlucose 1-P + UTP → UDPGlc Glycogen synthesis - Phosphoglucomutase - answerGlucose 6-P is i...

What is the chemical structure of glycogen? multiple glucose monomers bound together highly branched homopolymer how is glycogen linked branches - α-1,6 linkage chain linkages - α-1,4 linkage What enzymes are involved in glycogen degradation? What reactions do they catalyze? 1. Glycogen phosphorylase --> phosphorolysis reaction 2. Transferase --> shifts a small oligosaccharide 3. α-1,6-glucosidase --> debranching enzyme 4. Phosphoglucomutase --> form glucose 6 phosphate ...

Week 6 UNE Medical Biochemistry Review Exam Questions With 100% Correct Answers Glycogen is stored primarily in the: - answerliver and skeletal muscles Pathway for synthesis and degradation are identical. True or False - answerTrue Enzymes used for Glycogen synthesis - answerPhosphoglucomutase, UDPGlc pyrophosphorylase, and Glycogen synthase Glycogen synthesis - UDPGlc pyrophosphorylase: - answerGlucose 1-P + UTP → UDPGlc Glycogen synthesis - Phosphoglucomutase - answerGlucose 6-P is i...

Che Gout, MR, self-mutilating behavior in a boy - Lesch-Nyhan syndrome (HGPRT deficiency, Xlinked recessive) st pain, pericardial effusion/friction rub, persistent fever following MI - Dressler's (autoimmune post-MI) Achilles tendon xanthoma - Familial hypercholesterolemia Adrenal hemorrhage, hypotension, DIC - Waterhouse-Friderichsen syndrome (meningococcemia) Arachnodactyly, lens dislocation, aortic dissection, hyperflexible joints - Marfan's (fibrillin defect) Athlete with polycythemi...