Biochemistry: Concepts and Connections (2nd Edition)
2nd Edition
ISBN: 9780134641621
Author: Dean R. Appling, Spencer J. Anthony-Cahill, Christopher K. Mathews
Publisher: PEARSON
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Chapter 12, Problem 12P
Write a pathway leading from glucose to lactose in mammary gland, and write a balanced equation for the overall pathway. 
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Write a series of balanced equations and a summary equation for the reactions of the glucose–alanine cycle.
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
The urea cycle can be summarized through the following reaction:
O
||
H₂N-C-OPO3=
COO-
|
H3N-CHCH₂COO-
O
||
H₂N-C-NH2 + -OOCCH = CHCOO-
1. Write the reactions, using structural formulas that lead to the formation of carbamoyl phosphate and
its subsequent incorporation into the urea cycle. Name the enzymes and how they are activated.
Chapter 12 Solutions
Biochemistry: Concepts and Connections (2nd Edition)
Ch. 12 - Prob. 1PCh. 12 - Methanol is highly toxic, not because of its own...Ch. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Write balanced chemical equations for each of the...Ch. 12 - Prob. 7PCh. 12 - Prob. 8PCh. 12 - Prob. 9PCh. 12 - Prob. 10P
Ch. 12 - Some anaerobic bacteria use alternative pathways...Ch. 12 - Write a pathway leading from glucose to lactose in...Ch. 12 - Prob. 13PCh. 12 - Prob. 14PCh. 12 - Prob. 15PCh. 12 - How many ATP equivalents are consumed in the...Ch. 12 - Prob. 17PCh. 12 - Avidin is a protein that binds extremely tightly...Ch. 12 - 14CO2 was bubbled through a suspension of liver...Ch. 12 - Prob. 20PCh. 12 - Prob. 21PCh. 12 - Prob. 22PCh. 12 - Prob. 23PCh. 12 - 24. Glycogen synthesis and breakdown are regulated...Ch. 12 - Prob. 25PCh. 12 - Prob. 26PCh. 12 - Prob. 27PCh. 12 - Prob. 28PCh. 12 - 29 [1-14C] Ribose-5-phosphate is incubated with a...Ch. 12 - Prob. 30PCh. 12 - Prob. 31PCh. 12 - Prob. 32PCh. 12 - Prob. 33P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
- Identify the enzyme that carry out the below reaction and denotes the nature of the enzyme? UDP-galactose + N-acetylglucosamine ~ UDP + N-acetyllactosaminearrow_forwardThe final step in the pathway for the synthesis of glucose from lactate (gluconeogenesis) is: Glucose-6-phosphate + H20 5 Glucose + Pi When glucose-6-phosphate is incubated with the proper enzyme and the reaction runs until equilibrium has been reached, the final concentrations are found to be: glucose-6-phosphate (0.035 mM), glucose (100 mM), and Pi (100 mM). Calculate AG" at 25°C and pH 7. 10:21 PM 4/21/2021 F5 F6 F7 F8 F10 F9 7 8. Backspace ー のarrow_forwardWrite an equation for the net reaction of the urea cycle.Show how the urea cycle is linked to the citric acid cycle.arrow_forward
- Write the rest of the reactions that constitute the urea cycle using structural formulas. Name the enzymes that catalyze each reaction. Indicate which reactions occur in the mitochondrion and which occur in the cytoplasm.arrow_forwardTyrosinase enzyme activity is assayed by monitoring the oxidation of 3, 4-dihydroxyphenylalanine (dopa) to the red-colored dopachrome. Calculate the tyrosinase activity (U/mL) by using the experimental data given belowarrow_forwardExplain why, glucose-6-phosphate will prefer to go via the pentose phosphate route. What additional chemical is created by this route, and what role does it play in anabolic pathways?arrow_forward
- Write out a complete mechanism for the conversion of serine into aminoacrylate catalyzed by serine dehydratase.arrow_forwardAn L-amino acid oxidase in mammalian peroxisomes requires H2O and O2 as substrates and catalyzes amino acid deamination, producing H2O2 as a product. Write a balanced equation for the reaction.arrow_forwardWrite out a mechanism for the serine triad hydrolysis ofglycylglycine.arrow_forward
- Write a balanced equation for the synthesis of PRPP from glucose through the oxidative branch of the pentose phosphate pathway.arrow_forwardThe urea cycle can be summarized through the following reaction: O || H2N-C-OPO3 + COO- | H3N-CHCH₂COO b. O || H2N-C-NH2 1a Write the reactions, using structural formulas that lead to the formation of carbamoyl phosphate and its subsequent incorporation into the urea cycle. Name the enzymes and how they are activated. 1 + OOCCH=CHCOO- Write the rest of the reactions that constitute the urea cycle using structural formulas. Name the enzymes that catalyze each reaction. Indicate which reactions occur in the mitochondrion and which occur in the cytoplasm.arrow_forwardUpon digestion of starch, isomaltose (an isomer of maltose), one of its degradation products, is further hydrolyzed into its monosaccharide components prior to intestinal absorption and entry into the glycolysis. Calculate the number of ATP molecules produced from the digestion and complete oxidation of 1 molecule of isomaltose considering the malate-asparate shuttle. Answer the following items using numerical value only (e.g. 1, not "1 ATP") which will help you arrive at the final answer for this question.arrow_forward
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