Which of the following statements about nucleotides are true? Indicate all that are true.O CAMP and CGMP are second messengersAs AMP is produced from ATP in cells, it reacts with remaining ATP, allowing ADP to accumulate as a hunger signalO The ratio of [ATP/[ADP] is kept fairly constant in living, non-starved cellsO The KM for a typical ATP dependent enzyme is around the typical concentration of ATP in a cellO A bacterial cell (exclusively) fermenting glucose to form lactic acid will have a net yield of 2 ATPS for each lactic acid molecule produced

Nucleotides are building block of nucleic acids, its derivates works as a secondary messenger…

Answered: Which of the following statements about…

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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8. Rotenone is a chemical that naturally occurs in plants. It is a broad-spectrum poison, meaning it is toxic to many types of organisms, including fish, insects, and other pests. Rotenone inhibits the transfer of electrons from one electron transport chain complex to another (complex I to ubiquinone). Molecule Acetyl-CoA ATP a. Would you expect rotenone poisoning to affect the following molecules (yes or no)? If so, would you expect them in increase or decrease? NADH Will levels change? (Yes or no) If yes, will the levels increase or decrease?
Inhibitor X exerts which of the following effects on the above enzyme (lactase)? (inhibitor X changes lactase activity to a Vo of 0.10 mM per minute when [S] = 1.0 mM, and a Vo of 0.133333333333 mM per minute when [S] = 2.0 mM) pure non-competitive inhibition uncompetitive inhibition competitive inhibition all of the above none of the above
about ATP synthase [Cellular Respiration] Which of the following interactions provides the mechanical energy needed to promote ATP production? Non-polar interaction Salt bridge formation Polar interaction : Attractive Polar interaction : Repulsive
Three polypeptides, the sequences of which are represented using the one-letter code for their amino acids, are present in a mixture: Peptide 1: ATKNRASCLVPKHGALMFWRHKQLVSDPILQKRQHILVCRNAAG Peptide 2: GPYFGDEPLDVHDEPEEG Peptide 3: PHLLSAWKGMEGVGKSQSFAALIVILA Determine which peptide would migrate most slowly during the given methods of chromatography. anion exchange chromatography cation exchange chromatography size-exclusion (gel-filtration) chromatography Peptide 1 Answer Bank Peptide 2 Peptide 3
Plz choose correct option.
Choose any/all that apply to the proton-motive force and ATP synthesis. The active pumping of protons through ATP synthase against their concentration gradient provides the energy needed for ATP synthesis. Rotation of the y subunit creates conformational changes in the active sites of ATP synthase that drive the release of ATP from the enzyme. Each 3 subunit of ATP synthase has a distinct amino acid sequence that accounts for the three different active sites present in the enzyme. The ATP molecules produced from the pair of electrons provided by NADH have greater potential energy than the ATP molecules produced from the pair of electrons provided by FADH₂. Inhibition of either ATP synthase or ATP translocase will stop flux through the electron- transport chain.
Can you help solve this and write differential equation for the rates
(CCCCCC Gucose FLUD ATP CYTOSOL ADP The atoms in each molecule are reananged, releasing a molecule of water O COCCC C Qucosephosphate One ATP nalecule is formed for each molecule processed PweCCCCCHP Fructose1iphosphate The six carton chain in split into two three carton molecules, each of which then follows the rest of thin pathway Glyceradetyde P CC 3phosphat CCC Dyatone phosphate 2 NAD From mitochondra - To mitochond Ancther phosphate group is attached to each molecule, and NADH is generated trom NAD NADH Energy ummary 13hosphogyoate Shpa 142- ATP As soon an a glucose molecide endern the cytoool, a phoophate group is aftached to the molecule 0C ADP CCCP CCCP ATP Shep ATP S-Phosphogyoerate Sp7 ATP Asecond phosphate group ns attached Together, steps 1 and 2 cost the cell 2 ATP NET GAN ATP CCC Phonphoenoynate A MCond ATP molecule a fomed for ach molecul procsed Shep 7 produces 2ATP molecules CHR ADP ATP ICCC Pyruate To mitochondria
Part D Cofactors and coenzymes act to ▸ View Available Hint(s) O inhibit the binding of the substrate Ⓒblock the enzyme from binding its substrate O assist enzymes with their activity O increase the activation energy of binding a substrate Submit
apple pectin is : a a toxin made by the food-borne pathogen E. coli O157:H7 b a probiotic food supplement c needed to make Latkes and Jelly Doughnuts during the 8 days of Hanukkah d a prebiotic substance that promotes growth of “beneficial” probiotic bacteria in your intestines e depolymerized (hydrolyzed) by the enzyme pectinase
V-class proton pumps run backward relative to the F-class ATP synthase. Consider the cartoon, which shows the conformations of the beta-subunits and ATPIADP + Pj of the F-class synthase. Which of the following associations between the conformation of the beta subunit and ATP/ADP + P¡ is correct for V- Binding Change Mechanism loose binding ADP+P ATP ATP class pumps? C repeat ADP + P, ADP АТР tight binding АТР +P оpen АТР O The open conformation releases ATP. Hydrolysis of ATP to ADP + P¡ drives the change from tight to loose. O Binding of ADP + P¡ drives change from open to loose. Hydrolysis of ATP to ADP + Pj drives the change from open to loose.
Human xanthine oxidase catalyzes the oxidation of hypoxanthine to xanthine and can furthercatalyze the oxidation of xanthine to uric acid. For the treatment of hyperuricemia and gout,several medications are used to inhibit the activity of xanthine oxidase and reduce theproduction of uric acid. You are a biochemist and just discovered a chemical that can inhibitthe activity of the human xanthine oxidase. When analyzing its mode of inhibition, you foundthat the enzyme inhibitor complex requires 450 kJ.mol-1 to dissociate and that it displayskinetics somehow similar to noncompetitive inhibition. You sent your inhibitor to the ministryof health for approval as a medication for gout. Based on the data provided, are they going toauthorize it as a medication or not? Explain?(notice that its 450 kj not 450j)

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