Question 3Recall that there are four major steps in glucose metabolism. At which of the foursteps do products from beta oxidation enter? (Select all that apply) (Hint: Thinkcarefully about your answers above!)GlycolysisOPyruvate conversionThe citric acid cycleOxidative PhosphorylationQuestion 4How many ATP are produced from a fatty acid chain with 28 carbons?Your Answer:Answerunits Question 1What is the main purpose of beta oxidation?O to produce ATP from fatO to produce CO2 from fatTo activate the fatty acidsO To break down fatsQuestion 2Which of the following compounds are directly made by betaoxidation? (select all that apply)O NADHGlucoseO PyruvateO FADH2O GTPO Acetyl CoA

The four major steps in glucose metabolism are glycolysis, pyruvate oxidation, the Krebs cycle, and…

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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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QUESTION 2 2.1 Draw a metabolic chart indicating the carbohydrate transporters involved in intestinal transport and distribution of glucose, ga/actose and fructose. 2.2. Draw a metabolic chart depicting the reactions of phase 1 of the glycolysis pathway, including metabolite names, enzyme names and cofactors. Chemical structures are not a requirement in this answer 2.3.raw a diagram of the reactions of mitochondria/ 8-oxidation of hexanoic acid (CH3-(CH2)4-COOH). Include activation and mitochondria/ transportation and the structures of the intermediates
QUESTION 1 Using the free energy values of glycolysis and pyruvate transformation to ethanol calculate free energy (in kJ/mol) of glucose fermentation to ethanol: Glucose + 2 ADP + 2 Pi ⇌ 2 Ethanol + 2CO2 + 2 ATP + 2 H2O
QUESTION 1 a. John has just taken his Lunch meal, after which he is going to takes his Daily soccer practice match in the next 30 min, how will glycolysis operate/work in such conditions or be applicable b. How will oxidative phosphorylation work in sickly John who usually practice daily in soccer? Make possible scenarios c. Enzymes are critical in the metabolism of most most organic compounds, actually 30% of reactions are catalysed by them. How would the inactive enzymes (Sickness) in electron Transport Chain compromise the fat breakdown in the body.
Question 1: The overall process enabled by the glyoxylate cycle is: (2acetyl-CoA) + (NAD+) + (2H2O) → (succinate) + (2CoA) + (NADH) + (2H+) Dissect this process further by writing down all of the reactions that are actually involved in making one succinate from two acetyl-CoA units. Show chemical structure for all intermediates.
Question 1. Put away your notes and text and draw the complete Calvin-Benson cycle starting from 3molecules of Ru1,5BP. Show stoichiometry along the way using 6 GAP molecules to regeneratethe 3 Ru1,5BPs. Label each reaction according to its enzyme class (your choices arecarboxylase, kinase, dehydrogenase, aldolase, epimerase, isomerase, phosphatase, andtransketolase – see the posted enzyme guide for help on this).
Question 1: Part a: Assume that the standard free energy of ATP hydrolysis is -31 kJ/mol. Assume the following values for the standard free energy changes of the four reactions: HK -16.7 kJ/mol; PFK -14.2 kJ/mol; PGK -18.9 kJ/mol; PK -31.7 kJ/mol. (from bio.libretexts.org). Use these values to compute the standard free energy of hydrolysis (releasing Pi) of i. glucose 6-P ii. fructose 1,6-bis-P iii. 1,3-bisphosphoglycerate iv. phosphoenolpyruvate Part b: Which of these four compounds is the strongest phosphoryl donor?______________ Which is the weakest?__________________ Part c: The phosphoglycerate kinase reaction is favorable by -18.9 kJ/mol in the glycolytic direction, as stated above. In gluconeogenesis, this step is simply reversed; i.e. it is not one of the three steps in gluconeogenesis that is driven by using different chemistry than that of glycolysis. How can this be? (Be specific: what specific factors could enable reversal of this step?)
QUESTION 1: What fatty acid can cross membranes as free fatty acid without protein assistance, could then become substrate of beta-oxidation in mitochondria, and the produced acetyl-CoA could end being used for histone acetylation in the nucleus?
Question 1: The 4 kinase steps in glycolysis are catalyzed by hexokinase, phosphofructokinase, phosphoglycerate kinase, and pyruvate kinase. Write each of these four reactions, including all participants. i. ii. iii. iv.
Question 1. Answer the following questions: A. The complete oxidation of 1 mole of glucose to CO2 and H2O yields 686 kcal of free energy.How many ATP molecules could maximally be generated from one molecule of glucose, if theuseful chemical energy available in the high energy phosphate bond of 1 mole of ATP is 12kcal? B. However, it is known that cellular respiration produces 30 moles of ATP from 1 mole ofglucose. How does this compare with your answer in part (A)? Estimate the overall efficiency ofATP production from glucose? C. Assume that the cells of your body are oxidizing glucose and no energy is being dissipated asheat to the environment. However, the heat not converted into chemical-bond energy isincreasing the temperature of your body. How much would the temperature of your body riseupon oxidation of 1 mole of glucose if your body consists of 75 kg of water. [Hint: One kilocalorie (kcal) is defined as that amount of energy that heats 1 kg of water by 1oC]
QUESTION 4 True or False: If you could label electrons and follow them to the very end of glucose catabolism, you would ultimately find them in O2. True False
QUESTION 47 The role of oxygen gas in our cells is to accept electrons that come from NADH. produce CO2. react with glucose to split water. catalyze reactions in glycolysis. breakdown ATP.
Question 1: When the CAC is run in reverse by microorganisms that use it to fix carbon, the citrate synthase reaction is different and is catalyzed by an enzyme called ATP-citrate lyase. Write the reaction catalyzed by ATP-citrate lyase, then briefly (in one sentence) explain why the use of different chemistry (different from the ‘normal’ direction) makes sense here.

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Question 1 What is the main purpose of beta oxidation? to produce ATP from fat to produce CO2 from fat To activate the fatty acids O To break down fats Question 2 Which of the following compounds are directly made by beta oxidation? (select all that apply)