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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Textbook Question
Chapter 11, Problem 3P
a. NAD+ kinase catalyzes the ATP-dependent conversion of NAD + to NADP+ . How many reducing equivalents are involved in this reaction?
b. How many reducing equivalents are involved in the conversion of ferric ion to ferrous ion?
c. How many reducing equivalents are involved in reducing one molecule of oxygen gas to water?
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(a) NAD+ kinase catalyzes the ATP-dependent conversion of NAD+ to NADP+. How many reducing equivalents are involved in this reaction?
(b) How many reducing equivalents are involved in the conversion of ferric ion to ferrous ion?
(c) How many reducing equivalents are involved in reducing one molecule of oxygen gas to water?
Cells maintain different steady state ratios of NAD+/NADH (1000) and NADP+/NADPH (0.01).
(a) How do these ratios relate to the metabolic functions of NAD+ and NADPH?
(b) Given these physiological ratios, what is the AG for NAD+ to oxidize NADPH?
(c) This reaction does not happen in most tissues. Make a hypothesis: what prevents this from
occuring?
a. Arachidic acid is shown in the diagram below. How many rounds of β-oxidation will be
needed to fully catabolize arachidic acid?
b. What products will be obtained from the complete β-oxidation of arachidic acid?
c. What will be the final ATP output (after TCA cycle and oxidative phosphorylation)
obtained from the complete β-oxidation of arachidic acid?
Chapter 11 Solutions
Biochemistry: Concepts and Connections (2nd Edition)
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- Can you explain the various the options and the answer?arrow_forwardCalculate for the following based on complete oxidation of 5 molecules of trisaccharide containing 2 hexoses and 1 triose. a. Total number of ATP produced= b. Total number of CO2 released= c. Total number of ATP from oxidative phosphorylation= d. Total number of ATP from NADH= e. Total number of ATP from substrate level of phosphorylation in Glycolysis=arrow_forwardDiscuss the relationship between redox potentials E0’ and the organization of the components of the electron transport chain. Be specific, i.e., use data/actual values to back up your discussion. a) What are the values of E0’ for all the components of the ETS? b)How are the E0’ related to ∆G values? c) How do the values of E0’ vary among the participants in the ETS relative to their position in the ETS?arrow_forward
- Cyanide is a rapidly acting, potentially deadly chemical that can exist in various forms. If accidentally ingested or inhaled, cyanide can cause rapid death by binding to complex IV (cytochrome oxidase) of the electron transport chain in the mitochondria. A.What is the mechanism by which cyanide stops cellular respiration? Be specific. B.Does cyanide cause an effect at the beginning or the end of the cellular respiration pathway? C.Does this make a difference on the effect that this chemical can have on our cells? Why? D.How does cyanide’s course of action affect the remainder of the cellular respiration pathway? E.If a person accidentally swallows cyanide, mention a potential treatment that is currently available. What is the mechanism of action of this treatment? Be specific. Please answer completely will give rating surely All questions answers neededarrow_forwardDecylic acid is a saturated fatty acid that occurs naturally in coconut oil and palm kernel oil. Calculate the net ATP yield when decylic acid undergoes complete B oxidation. The formula of decylic acid is shown below: (Given: The oxidation of one NADH yields 2.5 ATP; the oxidation of one FADH2 yields 1.5 ATP; and the oxidation of one acetyl CoA yields 10 ATP.) O 50 ATP O 52 ATP 66 ATP OH O 64 ATParrow_forwardSome of the biochemical reactions of GLYCOLYSIS are known to have a positive deltaG0, e.g. the cleavage of a 6 carbon compound into two, three-carbon molecules. ONE reason these types of reactions proceed in the forward direction in cells is that... A. hydrogen ions are allowed to flow down their concentration gradient to power the reaction. B. ... NADH is oxidized to NAD+ to power the reaction. C. ... products of the reactions are kept at low concentrations due to their rapid use in downstream reactions with negaive deltaG’s. D. ... ADP is phosphorylated to ATP to power the reaction.arrow_forward
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