4.2The first step in amino acid catabolism usually involve transamination. Since ammonia is aserious neurotoxin, the body maintains the nitrogen and ammonia balance carefully.Discuss the pathway, organelle and organs involved in maintaining this balance. Provide aschematic presentation of the pathway to supplement your discussion.

Amino acids are the building blocks of protein. Proteins undergo metabolism to release ammonia,…

Answered: 4.2 The first step in amino acid…

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter17: Metabolism: An Overview

Section: Chapter Questions

Problem 6P: Why Do Anabolic and Catabolic Pathways Differ? Why is the pathway for the biosynthesis of a...

See similar textbooks

Similar questions

1.A patient with chronic pancreatitis and hence decreased secretory function of pancreas was prescribed an enzymatic drug «Enzystal» before each meal. Explain this prescription. For that: a)Name pansreatic enzymes, participating in digestion of carbohydrates, lipids and proteins. What is their pH optimum and how is it reached in duodenum? b) Draw the scheme representing the cascade of activation of pancreatic proteolytic enzymes. Indicate the mechanism ofactivation and its reversability c)Why are proteolytic enzymes secreted by pancreas in inactive form? d)What recommendations on diet can be given to this patient?
Show the complete reaction mechanism for the deamination of alanine until the amino group is transferred to the keto acid acceptor ⍺-ketoglutarate
With fatty infiltration of the liver, the synthesis of phospholipids is disturbed. What is the biochemical basis of the development of such a condition? What are its possible nests? Justify the answer.
Three metabolites that can result from the breakdown of the carbon skeleton of amino acids are ketone bodies, acetyl-CoA, and glucose. Briefly describe how each of these metabolites can be produced from amino acid catabolism.
Describe the nitrogenase complex. How is the enzymeorganized? What are its unique components?
Name the following enzymes:a. enzyme responsible for the cutting of the sugar on the nonreducing ends of glycogen branches b. enzyme that is only present in the liver and kidney during glycogen utilization c. enzyme that catalyzes the transfer of a two-carbon fragment from a ketose donor to an aldose acceptor in PPP
Step 4 of the pentose phosphate pathway converts ribulose-5-phosphate to ribose-5-phosphate. Which glycolytic reaction does this reaction resemble and what type of enzyme catalyzes it?
Maltase is an enzyme that catalyzes the hydrolysis of the disaccharide maltose. This process occurs during human digestion when maltase is secreted by the intestine and then converts maltose into glucose. Which two classes of biomolecules are directly involved in this process?
The diagram below shows an outline of the aminotransferase mechanism that skips the specific steps that show how electrons flow when a Schiff base is formed or is hydrolyzed. Using the mechanistic details given below A. Draw the mechanism for Enzyme- PLP Schiff base formation using pyridoxal and the lysine amine group using arrow to indicate electron flow. B.Draw the mechanism for hydrolysis of the Schiff base to form the a-keto acid, which is the reverse of the first reaction.
Which of the following statement regarding coenzyme A is incorrect? a) The B vitamin pantothenic acid is present as a subunit of its structure. b) Its main biochemical function is to transfer acetyl groups. c) Its structure contains a phosphorylated ADP.. d) The B vitamin pantothenic acid is the “active” subunit of the coenzyme A.
Which of the following is NOT TRUE about fatty acid biosynthesis? A. 8 NADPH is used to produce palmitate. B. The growing fatty acid chain is elongated by the sequential addition of two-carbon units. C. The process is repeated 7 times to produce palmitate. D. The process occurs in the cytosol.
In germ-free mice, which harbor no intestinal bacteria, the O-linked oligosaccharides of intestinal glycoproteins tend to lack a terminal fucose residue (see Fig.). (a) What enzyme is not produced in normal quantities in these mice? (b) What monosaccharides tend to appear at the ends of O-linked oligosaccharides in these animals?

SEE MORE QUESTIONS

Recommended textbooks for you

Biochemistry

ISBN:

9781305577206

Author:

Reginald H. Garrett, Charles M. Grisham

Publisher:

Cengage Learning

Human Heredity: Principles and Issues (MindTap Co…

Biology

ISBN:

9781305251052

Author:

Michael Cummings

Publisher:

Cengage Learning

Biochemistry

ISBN:

9781305577206

Author:

Reginald H. Garrett, Charles M. Grisham

Publisher:

Cengage Learning

Human Heredity: Principles and Issues (MindTap Co…

Biology

ISBN:

9781305251052

Author:

Michael Cummings

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS