Which of these condition of all substrates and en standard state of a biological system?a) There is a 1Menzymes.b) There is a 1M concentration of H+.a)c) The solution is at 25°C.It is assumed the activity of 55M H₂O is the same as the activity at IM H₂O.2. What is the AG of a reaction at equilibrium?a) AG <0(b)AG=0c) AG>0d) Equilibrium and AG are not relatedCXWhich of the following is an omega-6 fatty acid?b)CHow are solid fats and oils different?a) fats contain triacylglycerols with more double bonds than oils.b) fats contain triacylglycerols with three fatty acid chains while oils have triacylglycerolswith two fatty acid chains.OHd)c) fats contain triacylglycerols and oils contain fatty acidsd) fats contain triacylglycerols with fewer double bonds than oilOHOH

The term "standard conditions" in biology typically refers to a set of reference conditions that are…

Answered: a) Which of these contration of all…

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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a) What type of polymer is being formed in Reaction #3? b) Name an enzyme that can catalyze Reaction #3. c) What is △Go of Reaction #3? Show your work & clearly label your answer.
What is a hydride ion (H)? OA) the compound transferred to NAD+ in a reduction reaction. B) a hydrogen atom with and a extra electron C) the anion of hydrogen D) A and C OE) A, B and C
1)Ubiquitin is a small protein with a monoisotopic mass of 8560 Da. a) Electrospray ionization of this small protein typically results in major charge states of +8, +9, +10, +11, +12, and +13. Using this information, complete the table below, assuming the charges on each come from protonation. Report mass and m/z values to the ones place. b) Using the data you entered in the table, sketch an expected ESI-MS spectrum for ubiquitin. Label each peak with its charge state. What do you notice about the spacing of peaks along the x-axis. c)The figure shows an experimentally obtained electrospray mass spectrum for ubiquitin. Compare this spectrum to the spectrum you predicted. Are there any differences? If so, what might cause these differences?
The correct systematic name for the fatty acid below is: a) 3 octadecatrienoic acid b) 9 octadecatrienoic acid c) 3,6,9 octadecatrienoic acid d) 9,12,15 octadecatrienoic acid e) None of the above
Consider the reaction catalyzed by PFK. In the presence of AMP, which of the following will be expected? Check all that apply: a)The Km for substrate would be decreased b) the initial velocity plot would show the curve shifted to the right c) the R state is stabilized d)the rate of the reaction is diminished
Among the following biochemical condition, which condition describes forward (spontaneous) reaction? a) Q >> Keq b) ΔΔG=0 c) Keq=1 d) Q << Keq
b. Choose all true statements for enzymes below A) All enzymes are made up of amino acids. B) Enzymes can increase the equilibrium constant for a given reaction by a thousand-fold or more. C) Enzymes can increase the reaction rate for a given reaction by a thousand-fold or more. D) Their catalytic activity is independent of pH. E) They are generally equally active on R and S enantiomers of a given substrate. F) To be effective, enzymes must be present at the same concentration as their substrate. G) Enzyme activity is usually increased in the presence of denaturants like SDS and urea. H) Catalytic rate of enzymes cannot exceed what is dictated by the diffusion limit.
For each of the following pairs of amino acids, identify the strongest type of intermolecular forces involved when the side chains interact. Explain in terms of the chemical structures of the amino acid side chains. Use the following list: disulfide bridge, hydrogen bonding, hydrophobic interaction, or salt bridge. a) D and H b) C and C c) L and A d) G and S e) N and T
НО b) HO 1) Name each listed compound (a, b, c, d) below, 2) Arrange them in a right reaction order for corresponded conjugation, and 3) List all involved enzyme(s) in each step. OH НО- OH COOH o-t=o OH Н н OH HN H ОН H H OH HN Н OH c) НО d) HO HO HO OH COOH OH O₂PO OH XR
The following questions are based on the reaction A+ B ↔ C+D shown in Figure 8.1. 1. Which of the following terms best describes the progress of the reaction with respect to free energy change? a) endergonic, ∆G> 0 b) exergonic, ∆G> 0 c) exergonic, ∆G< 0 d) endergonic, ∆G< 0 2. Which of the following in Figure 8.1 remains unchanged by having an enzyme included? a) b b) d c) a d) c 3. The part labeled “C” on the above graph represents a) Energy of activation without enzyme b) Energy of activation with enzyme c) Amount of free energy released d) amount of energy required for the reaction progress
Explain how running a reaction with the enzyme aldolase at a pH of 14 affects its activity Enzyme Activity e Activity 765432TO Factors Affecting Enzyme Activity 0 6543 2 6 Solution pH 8 a) It significantly diminishes activity because enzyme is denatured b) It significantly diminishes activity because the enzyme becomes too reactive Oc) It will quadruple its activity because enzyme is denatured and free Question 9 (5 points) Estimate the optimum pH required for maximum enzyme activity 10 d) It will double its activity because enzyme now has more active sites 12 Factors Affecting Enzyme Activity

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