Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic)? OH 2>1>3 3 > 21 1>3>2 1 2 3 ΝΗΣ 2 3
Q: 13. The structures of sphingosine and choline are given below. Draw the condensed structure and…
A: Sphingolipids has sphingosine as its platform molecule. Onto this sphingosine, a head group and a…
Q: From the chart below, comment on the effect of substrate concentration on the rate of reaction.
A: Here we are using 10 tubes. A specific substrate concentration is used in two tubes each. For…
Q: Genetics 8 Q1
A: The question is asking to identify the type of chromosome rearrangement that involves two…
Q: Protease enzymes cleave proteins by hydrolyzing peptide bonds. The strategy for each type of…
A: A nucleophile is a chemical species that is negatively charged or has a high electron density or a…
Q: Session 21180406 matching question Identify the type of lipid based on the structural features. 1st…
A: Lipids are a chemically diverse group of biomolecules that have two things in common:low solubility…
Q: Molecule A held promise as a treatment for rheumatoid arthritis except that it remained in the body…
A: Many factors determine the duration of time a drug stays in the body. The drug being hydrophobic…
Q: Genetics Q4
A: The objective of the question is to find the sequence of the opposite strand of a given DNA strand.…
Q: I JUST WANTED TO NOTE THAT OPTION C IS 100% WRONG AND YOU CAN ONLY CHOOSE ONE OF THE OTHER 4 OPTIONS…
A: The DNA double helix's structural characteristics and interaction sites are described by the…
Q: Consider the reaction below to answer the following question(s): + HBr A B Br с + D Br Enter the…
A: The kinetically controlled product is DOption 1 is correctExplanation:
Q: 4. In the reaction in which glyceraldehyde 3-phosphate is oxidized to 3-phosphoglycerate, which…
A: The process of oxidation and reduction in a reaction is collectively called Redox reaction. During a…
Q: What is the product of CH₂OH H-C-OH HO-C-H H-C-OH H-C-OH CH₂OH COOH H-C-OH HO-C-H I H-C-OH H-C-OH…
A: This is an example of reduction of a sugar with NADH/enzyme. The reaction of glucose with NADH is a…
Q: In some microorganisms, carbon fixation occurs by reversal of the citric acid cycle. This reversal…
A: Change in standard reduction potential () is the standard reduction potential of the electron…
Q: drawing of electron pushing not the explaination I just need electron pushing arrow mechanism for…
A:
Q: What is the effect of each of the 4 types of inhibitors on the initial rate of an enzyme catalyzed…
A: Inhibitors of enzyme catalyzed reactions are broadly classified into reversible and irreversible…
Q: Several general characteristics of metabolic reactions or reaction pathways are listed. Classify…
A: Metabolism is the sum total of all chemical reactions taking place in an organism. It can be…
Q: Creatine phosphate is used as a phosphoryl donor for ATP synthesis in muscle. It provides ATP for…
A: a) The enzyme creatine kinase catalyzes the production of creatine phosphate. The response is as…
Q: STEM Workplace Practices Q5
A: The statement is false. Analytical methods are not assessed only once in their lifecycle for…
Q: BIOMOLECULES - Please answer the questions properly. - Multiple choice 1. Which of the following…
A: OPTION A : It outlines an enzymatic two-step mechanism that converts AMP to ADP and subsequently ADP…
Q: The activity of ________ will result in an increasedpositive charge on the histone.…
A: Answer: b. Histone deacetylaseExplanation:• Histone acetyltransferases (HATs): These enzymes add an…
Q: Is the following process considered oxidation or reduction? a oxidation b reduction Fe²+ Feº
A: Oxidation and reduction are fundamental concepts in chemistry that describe the transfer of…
Q: What is the driving force that promotes secondary structure formation of alpha helices and beta…
A: Alpha-helix and beta-sheets are the two most prominent regular secondary structures in protein.…
Q: You are supplied with the following: / Jy word voorsien van die volgende: NaCl (Mr= 58,443 g /mol)…
A: In order to calculate how much of each component we should use to get the required buffer, we need…
Q: pH of solution 14.00 12.00 10.00 8.00- 6.00 First equivalence 4.00 point 2.00- 0 Second equivalence…
A: The given pH value is 7.5 which lie at the Second Titration.The transition region between the…
Q: The anticodon _______ can form a Wobble interaction with 5’ UAG 3’? Please note the directionality…
A: Codon is defined as the combination of three ribonucleotides of mRNA. These are complementary to…
Q: One strand of a double-helical DNA has the sequence 5'-GCGCAATATTTCTCAAAATATTGCGC-3'. Write the base…
A: According to Watson-Crick base pairing rule, adenine (A) pairs with thymine (T) while guanine (G)…
Q: Write a mechanism describing the conversion of citrate to acetyl CoA and oxaloacetate, catalyzed by…
A: ATP-citrate lyase (ACL) catalyzes the cleavage of citrate using energy from ATP to produce…
Q: (e) What kind of inhibitor is it likely to be? Plot the data in Lineweaver-Burk plot form to support…
A: For a one-substrate enzyme-catalyzed reaction, the Michaelis-Menton equation shows the quantitative…
Q: Genetics Question 5
A: The objective of the question is to identify the correct event that occurs during the Anaphase of…
Q: 6. Use the density of water to determine the volume of water delivered. 7. Calculate the mean of…
A: In the given part 6to calculate the volume of water deliveredformula used= Density=…
Q: The cofactor shown below: is an oxidizing agent is a reducing agent is a carrier of acyl groups is…
A: The given structure is of the FAD molecule. FAD = Flavin adenine dinucleotide.
Q: R 20 O- protein N CH3 H₂N asparagine side chain HO OH OH activated sugar Draw the product of the…
A: An O-glycosidic bond is a covalent bond formed between a carbohydrate's anomeric carbon and the…
Q: You are studying how your Lys-Val-Thr tripep de interacts with another pep de, which places an Asp…
A: Eventhough all ionizable groups have their characteristic pKa value, the pKa value of an ionizable…
Q: 7. Consider the structures shown. For each structure select all that apply. a) pentose, hexose or…
A: Answer and its explanation are given below.I hope it helps you Explanation:
Q: Structure B was derived from structure A. What was the main reason for incorporating the two ester…
A: A molecule gains hydrolysis-prone sites when ester groups are incorporated into it. Choline is…
Q: The conversion of pyruvate into acetyl CoA consists of three steps. Identify these three steps and…
A: The pyruvate dehydrogenase complex (PDHC) is an enzyme complex composed of 3 enzymes.Pyruvate…
Q: Choose all of the completely correct statements describing peptide X below: 00. 00 HO. O €0 NH3 O:…
A: Proteases are the protein digesting enzymes which cleave peptide bonds. There are some proteases…
Q: Genetics Q3
A: The question is asking us to determine the percentage of Adenine (A), Guanine (G), and Cytosine (C)…
Q: 9. Which reactions in Model 2 are hydrolysis reactions? 10. Write the soap formed in the following…
A: hydrolysis is an chemical reaction , in which a molecule of water is breaks into One or more…
Q: Calculate the K of A given K₁ = HA(aq) + H2O(l) = H3O+ (aq) + A¯¯(aq) K = 5.90×108
A: 1) Kb of A- = 1.69 x 10-7 2) a) Ka of weak monoprotic acid, HA = 2.3 x 10-5 b) Percent ionization of…
Q: imagine that you are running a sample on a TLC plate that is comprised of aspartate and isoleucine.…
A: The working principle of thin-layer chromatography is the same as column chromatography.A small…
Q: A coal fire plant uses 1 kg of coal to generate 1000 kWh of electricity and emits 50 kg of CO2 and 5…
A: The objective of the question is to understand the relationship between the functional unit (FU) and…
Q: Draw the reaction between sphingosine and arachidonic acid and draw the full structures
A: Sphigosine is the platform molecule of sphingolipids. Arachindonic acid is a 20 carbon fatty acid…
Q: A student used 3.9g of liver sample and extracted all the lipids into a total of 1ml of CHCl3. 5…
A: It is a equation of straight line which represents relationship between the independent variable and…
Q: If the following polysaccharide were to attach to a protein, to which atom(s) in the carbohydrate…
A: A glycosidic bond is a type of covalent bond formed between the anomeric carbon of the carbohydrate…
Q: Biochemistry...Represent the reactions when Phosphatidylethanolamine was treated with; (I)…
A: Phosphatidylethanolamine (PE) is a type of phospholipid found in cell membranes. It consists of a…
Q: phosphofructokinase reaction of Fructose-2,6-bisphosphate is a regulator of both glycolysis and…
A: Activates glycolysis and inhibits gluconeogenesis:Increased levels of…
Q: To track cell growth and utilization of the limiting substrate in a bioreactor, the yield is…
A: S=Y(X0−S0)X−X0+S0Explanation:Lag Phase: The growth rate is zero (μ = 0) since there is no…
Q: Which of the following statements regarding polynucleotides is true? a) A double stranded DNA forms…
A: The correct answer is: a) A double-stranded DNA forms a right-handed helix, where both strands run…
Q: 3. The image below depicts 2,3-bisphosphoglycerate depicted in dark gray, and ß subunits are…
A: The objective of the question is to understand the role of 2,3-bisphosphoglycerate (BPG) in the…
Q: How is plasmid DNA distinguished from coli chromosomal DNA using the Qiagen Miniprep protocol?
A: In the Qiagen Miniprep protocol, plasmid DNA is distinguished from E. coli chromosomal DNA based on…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- The skeletal structures of the two amino acids, glycine and lysine, are given below along with the values of the relevant acid dissociation constants (pKa). NH,* PK, - 10.79 - HạN*CH2CO,¯ S pK¸=2.35 (CH2)4 - H3N*CHCO,- pK,=9,78 lysine (Lys) glycine (Gly) pK, = 9.18 pK, - 2.16 For an aqueous solution of glycine alone, calculate the value of pH at which the ratio of the concentration of neutral glycine zwitterions to the concentration of protonated cation is 102. On your under each of the following conditions. In the blank, provide the total charge of the dipeptide. (Example: If the charge is two plus write the answer simply as 2, if the charge is negative two write the answer as -2). draw the skeletal structure of the dipeptide, Lys-Gly, when it is solvated in an aque us solution i. pH= 1 ii. pH= 12The ideal buffer range for any amino acids is pH above or below its pI values because the amino acid will get get precipitated at its pI. pKa1 of -COOH group of Cys = 1.71 pKa2 of -NH2 group of Cys = 10.78 pKa3 of side chain group of Cys = 8.33 (it indicates that the thiol group of Cys is a strong acid than the -NH2 group pf Cys as pKa Cys side chain is lower). Thiol side chain of Cys will loose proton first than -NH2. Net charge on Cys is zero in structure B, i.e. Structure B is a zwitterion and pI can be calculated from pKa1 and pKa3. Structure B of Cys, pI = (8.33 + 1.71) / 2 = 10.04/2 = 5.02 pH above its pI the Cys will be -vely charged (deprotonated) while pH below its pI it will be +vely charged (protonated). So, selection of buffer depends on its pI values, not pKa values of each functional group, QUESTION: What are the buffer regions/effective pH range?Identify the conjugate acid-base pairs in the following reactions: HNO2(aq) + H2O(l) → NO2 – (aq) + H3O+(aq) _______ ______ _________ ________ CH3NH2 + H2O(l) → CH3NH3+ + OH – _______ ________ ________ _________
- Normal arterial pH is 7.35 to 7. 45. Both metabolic and respiratory alkalosis have pH more basic compare to the normal arterial pH. The difference is 0.5 units. What is pH value in alkalosis? Niemann-Pick type C disease is a progressive neurological disease; symptoms include unsteady walking with uncoordinated limb movements, slurred speech, a difficulty in swallowing, epilepsy and tremor. This condition is due to the abnormal functioning of a lysosome. State the normal functions performed by this organelle.A researcher is preparing a reaction mixture to test the activity of a protein. They combine the required reaction components, which contained in a final 100 ml reaction volume 200 mM NaCl, unknown concentrations of acetic acid and acetate anions and a total [H+] concentration of 790 ricromolar. Can you determine the pH of the solution? Provide the answer to one decimal place. Note: You may need to round the numbers to get the required answer. 100 Strips pH indicator strips non-bleeding pH pH 0-14 EM-Reagents Dip in-read while still moist. immerse in weakly-buffered solutions une there is no further color change (1-10 min) 3 7 5 6Trans-oleic acid (18:1,D9) has a melting temperature of (44.5C) and cis-oleic acid (18:1,D9) has a melting point of (13.4C). Briefly explain the difference in melting points between the two.
- A base is added to a 0.050 M solution of MnCl2, raising the pH gradually. Calculate the pH of the solution when 88 of the manganese has precipitated? Table 5-7 Solubility-Product Constants, K, at 25°C Fluorides Chromates (cont.) Ag, Cro, PbCro, Hydroxides (cont) Ni(OH), Zn(OH), Cu(OH), Hg(OH), Sn(OH), Cr(OH), A(OH), BaF, MgF, PbF, SrF, CaF, 2.4 x 10-5 X 10-8 x 10-8 1.9 x 10-12 1.6 x 10-16 4.5 X 10-17 1.6 x 10-19 3 2 x 10-16 4 Carbonates 7.9 x 10-10 3.9 x 10-11 X 10-26 NiCO, CaCO, BaCo, SrCO, CuCO, ZnCO, MnCO, 1.4 x 10-7 3 10-27 4.7 x 10- 6.7 x 5 x 6 x 10-38 2.5 x 10-43 Chlorides 10-31 1.6 x 10- 1.7 x 10-10 1.1 x 10-18 1.6 x 10-9 7 x 10-10 2.5 x 10-10 10-33 PBCI, AgCi Hg,Cl, Fe(OH), Co(OH), Sulfides 2 x 10-10 8.8 x 10-11 2.1 x 10-11 Bromides X 10-16 X 10-19 3 x 10-21 X 10-22 2.5 x 10-22 X 10-26 1.0 x 10-28 MnS 7. PbBr, AgBr Hg, Br, 4.6 x 10-6 5.0 x 10-13 Feco Ag,CO, CdCo, PBCO, MgCO, Hg,CO, Fes 4 8.2 x 10-12 5.2 x 10-12 1.5 x 10-15 1 x 10-15 NiS 1.3 x 10-22 Cos ZnS lodides Pbl, Agl…Three buffers are made by combining a 1M solution of acetic acid and a 1M solution of sodium acetate in the ratios shown in the table below. Which of these statements is true regarding the prepared buffers? (Ka= 1.7x10-5) pH of buffer 1 < pH of buffer 2 < pH of buffer 3 pH of buffer 1 = pH of buffer 2 = pH of buffer 3 pH of buffer 1 > pH of buffer 2 > pH of buffer 3 pH of buffer 1 = pH of buffer 2 > pH of buffer 3 pH of buffer 1 > pH of buffer 2 = pH of buffer 3What is the pH of a buffer of a buffer system that contains a weak acid of .19 M and conjugate base of .12 M ? The Ka of the acid is 5.6x 10 -6 pH= pKa + log ( [A- ]/[HA]) please show me step by step
- A base is added to a 0.050 M solution of MnCl2, raising the pH gradually. Calculate the pH of the solution when 70 of the manganese has precipitated? Table 5-7 Solubility-Product Constants, K, at 25°C Fluorides Chromates (cont.) Ag, Cro, PbCro, Hydroxides (cont.) Ni(OH), Zn(OH), Cu(OH), Hg(OH)2 Sn(OH), Cr(OH), Al(OH), Fe(OH), Co(OH), Sulfides Baf, MGF2 PbF, SrF, CaF, 2.4 x 10-6 1.9 x 10-12 1.6 x 10-16 8 x 10-8 X 10-8 7.9 x 10-10 3.9 x 10-11 2 x 10-16 4.5 X 10-17 4 1.6 x 10-19 X 10-26 X 10-27 6.7 x 10-31 Carbonates NiCO, CaCO, BaCO, SrCO, CuCO, ZnCO, MNCO, FeCo, Ag,CO, CdCo, PbCO, M9CO, Hg,CO, 1.4 X 10-7 4.7 x 10-9 3. Chlorides 1.6 x 10-9 PbCl, AgCI Hg,Cl, х 10-33 X 10-38 2.5 x 10-43 1.6 x 10-5 X 10-10 2.5 x 10-10 2 x 10-1o 8.8 x 10-11 2.1 X 10-11 7 1.7 x 10-10 1.1 X 10-18 6. Bromides PbBr2 X 10-16 X 10-19 X 10-21 5 x 10-22 2.5 x 10-22 X 10-26 1.0 x 10-28 MnS 4.6 x 10-6 5.0 x 10-13 Fes 4. AgBr Hg,Br, 8.2 x 10-12 NiS Cos Zns 1.3 x 10-22 3 5.2 x 10-12 1.5 x 10-15 1 x 10-15 9.0 x 10-15…Which of the following aqueous solutions has the lowest pH: 0.1 M HCl; 0.1 M acetic acid (pKa = 4.86); 0.1 M formic acid (pKa = 3.75)?Quinine ( C20 H24 N2 O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug. For quinine, pK, = 5.1 and pK, = 9.7 ( pKp = – log Kp). Only 1 g quinine will dissolve in 1920.0 mL of solution. Calculate the pH of a saturated aqueous solution of quinine. Consider only the reaction | Q+ H2O= QH+ + OH- described by pK, where Q = quinine. pH =