3. Draw the structures of glucose, pyruvate, and acetyl coenzyme A; number (label) the carbons in each.GlucosePyruvateAcetyl-CoA4.Assuming a typical mitochondrial matrix has a volume of about 5x10-¹4mL. If the pH of the matrix is 7, report thenumber of hydrogen ions contained in the matrix.ANSWER5.Glucose may be used to produce pyruvate or stored. Under what circumstances would glucose be stored?

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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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in the synthesis of glycogen, the glycogen synthase uses UDP-glucose rather than glucose. Explain in detail way.
The hexokinases are a class of enzymes that catalyze the ATP-dependent phosphorylation of hexoses (sugars with six carbons). The hexokinases will bind only D-hexose sugars and not their L-counterparts. In general terms, describe the features of enzyme structure that make this specificity possible.
Can u help me to explain to me, please? I stuggled my homework and i need help to understand it
Can you please pick the right answer in each parentheses (a) to (e)? Coenzymes are nonprotein compounds that are required for the activity of certain enzymes. One critical coenzyme central to metabolism is NAD+. In fact it is one of 5 coenzymes required by (a)< "pyruvate dehyrogenase" vs "citrate synthase" > , the critical enzyme for producing Acetyl-CoA. NAD+ is synthesized from (b)< "niacin (vitamin B3)" vs "acetate" > as was discovered to be critical for health by two American scientists, (c)<"Joseph Goldberger and Conrad Elvehjem" vs "Linus Pauling and Eric Lander"> , in the early 20th century. Dietary lack of this critical molecule produces pellagra, characterized by the following symptoms: (d)<"skin inflammation, dementia, diarrhea" vs "chorea-like movement">. People with these problems were found in parts of the U.S. where diets lacked vegetables and consisted principally of corn. Interestingly, soaking the corn in (e)<"salt water" vs…
The biosynthesis of vitamin D₂ is a two-step reaction, requiring two types of concerted pericyclic reactions. Draw in the arrows for each step and identify the structure of precalciferol. If an electrocyclic reaction is required, identify if it occurs through a conrotatory or disrotatory reaction. HO H H ergosterol hv precalciferol Cast HO ergocalciferol
Which of an alpha-D-2,3-di-O-methylglucopyranose or alpha-D-2,3, 6-tri-O-methylglucopyranose represents a glucose unit in glycogen which was originally carrying an (alpha 1-->6) glycosidic bond?
If cells synthesizing glucose from pyruvate are exposed to co2 labbeled 14C use the structure of gluconeogenesis to write where the carbon ultimately ends up.
Fatty acid chains after subjected to degradative enzymes in the intestines are hydrolyzed (hydrolysis) into 2 Carbon acetic acid fragments (Each fragment becomes an acetyl Co-A molecule). What stage of cellular respiration will this product of lipolysis enter? How many ATP can one fragment produce in cellular respiration?
Starting with pyruvate (CH3COCOO—) as the precursor, the first step of gluconeogenesis is activation of pyruvate. Show the reaction for activation of pyruvate. Name the enzyme and coenzyme for this reaction. Why is the activation step necessary? What is the next step after the activation step?
The following molecules act as either inhibitors or activators of the enzyme that converts fructose-6-phosphate to fructose-1,6- diphosphate. Which do you think are activators? (A) ADP B AMP ATP citrate
Explain why people with a hereditary deficiency of carnitine acyltransferase II have muscle weakness. Why are the symptoms more severe during fasting? (Keep your answer to at least a paragraph)
When a 23 Carbon fatty acid is metabolized, what is the total number of (GROSS) ATP produced ?

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