From the three figures below, indicate which represents best the catalytic pocket of trypsin, a serine protease, secreted by acinar pancreatic cells.C)A)A. Figure A.B.Figure B.ⒸC. Figure C.Asp 189B)Asp 189Val 190Val 216work ofVal 216Val 190

Serine proteases are the group of enzymes that cleaves the peptide bond in proteins, where Ser…

Answered: From the three figures below, indicate…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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The brain can also use ketone bodies as fuel in addition to utilising glucose when it is present.Even the use of ketone bodies as a fuel source for the brain rather than glucose is supported by data.How are ketone bodies used by the brain? Discuss how brain metabolism is thought to be changed inneurodegenerative diseases(refer to the figure below) How does the brain benefit from using ketone bodies as fuel in these cases(refer to Figure below)Refer to the article " Effects of Ketone Bodies on Brain Metabolism and Function in Neurodegenerative Diseases" to answer the questions. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7699472/
If the brain needs glucose, then gluconeogenesis stops after reaction (9, 8, 10, 2) because (phosphoenolpyruvate, glucose, glucose-6-phosphaet, fructose-6-phosphate) can be exported from the hepatocyte using a transporter.
For the mutation of the enzyme below, describe the effect it will have on carbohydrate metabolism. Also, make sure to think about the effect it has on muscles versus the liver: Mutation that converted the phosphorylation site serine in fructose 2,6-bisphosphatase to an aspartate. (Hint: aspartate acts as a phosphorylated serine).
Predict physiological consequences of a constitutively active glucose uniporter in the intestines .
The catalytic mechanism of bovine pancreatic RNase A relies upon acid-base catalysis involving the amino acid O A. imidaole OB. lysine OC. histidine OD. aspartic acid E. glutamic acid
Acetylcholinesterase converts acetylcholine into acetate and choline . Like serine proteases, acetylcholinesterase is inhibited by DIPF. Propose a catalytic mechanism for acetylcholine digestion by acetylcholinesterase . Show the reaction as chemical structures.
The first step in amino acid catabolism usually involves transamination. Since ammonia is a serious neurotoxin, the body maintains the nitrogen and ammonia balance carefully. Discuss the pathway, organelle and organs involved in maintaining this balance. provide a schematic presentation of the pathway to supplement your discussion
All of the following are true with respect to alpha-glucosidase inhibitor, except:A. It inhibits intestinal alpha-glucosidase B. It decreases enzymatic conversion of oligo- to monosaccharidesC. It lowers postprandial glucoseD. It causes gastrointestinal disturbances.E. It may cause development of hypertension.
The body is constantly performing low levels of amino acid catabolism to turn over old and non- functional proteins. Imagine your liver is degrading tryptophan-rich proteins shortly after lunch. What pathways are most likely used by the carbonbackbone that results from tryptophan transamination? Assume that you have not moved much and the liver is very well-rested. Choose the TWO pathways that apply. (A) CAC(B) fatty acid synthesis (C) gluconeogenesis (D) glycogenesis(E) glycolysis(F) ketolysis(G) PDH complex
Enzymes that digest dietary proteins in the stomach and intestine are synthesized as proenzymes or zymogens. Which of the following is the proenzyme form of a proteolytic enzyme of the digestive tract? elastase O carboxypeptidase chymotrypsin
write a summary on these 2 enzymes. Hexokinase and Phophoglycerate mustase
None

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