Synthesis of soaps from triacylglycerols are via base catalyzed hydrolysis because: Select one: O a. They produce long chain carboxylates and glycerol O b. They produce compounds which can dissolve both polar and non polar particles c. It produces a polar head and a non polar tail O d. All of the above
Q: No Are ions Yes present? Are molecules with permanent dipoles present? No Are polar No molecules…
A: Intermolecular forces are the attractive or repulsive forces present between the molecules. These…
Q: The use of free energy released from ATP hydrolysis to drive synthesis of a polymer is best called…
A: ATP is known as adenosine triphosphate. The reaction having negative free energy changes are…
Q: A biochemical reaction transfers 60 kJ mol-1(15 kcal mol-1) of energy. What general process most…
A: Biochemical Reaction : It is the transformation of one molecule to a different molecule inside a…
Q: From the point of view of the molecules involved, which of the following reactions illustrates an…
A: Entropy is basically an act of arbitrariness and absence of hierarchy of the system . Entropy can…
Q: Catalysis isa. restoring secondary structure.b. denaturation in reverse.c. protein enlargement.d.…
A: Catalysis is the speeding up of a chemical reaction by a chemical species.
Q: In order for the reaction rate to rise the activation energy should be Select one: O a. decreased O…
A: Activation energy is the energy difference between excited state (transition state) and ground…
Q: Explain the principle of 'Using Safer solvent taking suitable example of a conventional reaction and…
A: Safer solvents and auxiliaries. This principle promotes the use of safer solvents and auxiliaries.…
Q: In the figures of ferricrocin and enterobactin, circle the parts of the molecule that are b)…
A: Ferricroxin ,is a siderophore involved in intra and transcellular iron transporter in Aspergillus…
Q: HOCH, OH OH OH OH
A: Biopolymers or large biomolecules, such as nucleic acids are needed for all known types of life.…
Q: Which of the following is the result of the hydrolysis of 5'-CTAGTTC-3' at the a side?…
A: Nucleic acids are composed of nucleotides. Nucleotides are composed of a phosphate group, a pentose…
Q: Which of the following reactions takes place by dehydration synthesis? Which of them takes place by…
A: Some polymerization reactions are accompanied with the loss of water molecules at each step. Such…
Q: A biochemist discovers and purifies a new enzyme, generating the purification table below. (a) From…
A: Enzymes can serve as biological catalysts to increase the rate of a chemical reaction by lowering…
Q: b) The above molecule may be further converted into a polymer with similar molecular structure to…
A: The molecule given in the question is named the molecule" 5-hydroxymethyl-2-furaldehyde or…
Q: Addition of _____ to a multi-subunit protein would involve the breaking of covalent bonds a.…
A: Proteins have different levels of conformations. They are, primary structure, secondary structure,…
Q: The authors have used a chiral HPLC column (separating phase) to analyze compounds 4 and 5. Briefly…
A:
Q: Ethyl alcohol is sometimes used in hospital emergency rooms to treat patients who have ingested…
A: The main components of the antifreeze are methanol, glycerol, ethylene glycol, and propylene glycol.…
Q: when preparing a buffer solution for a biological experiment, one should choose a) a weak acid and…
A: Buffer solutions often are weak acid/strong acid and conjugate base. buffers resist the change…
Q: In the process of isolating the enzyme amylase, you used methanol: a. To help the enzyme catalyze…
A: Methanol reactions with solvent stable amylase reduces the amylase activities.
Q: Is Vitamin C considered a water or fat soluble vitamin? Explain, based on the structure of ascorbic…
A: Ascorbic acid is a powerful lowering and antioxidant that aids in the battle against bacterial…
Q: Question attached
A: pka of NADH > pka of the phenetic -OH therefore NADH will deprotmate the phenolic -OH to produce…
Q: Carboxylesterase 0 1 2 3 4 5 6 7 pH Enzyme activity -
A: Carboxylesterases are a group of enzymes that hydrolyze compounds containing a functional group such…
Q: working, oxygen gas bubbles will be released. The chemical reaction that occurs is the following:…
A: pH is a very important criteria for determining the activity of an enzyme because an enzyme only…
Q: In the elimination-addition mechanism for phosphate group transfer reactions, the intermediate would…
A: Phosphate ester and anhydride phosphorus atom reactions form the chemical basis for many of the most…
Q: I’m not sure which answer is true for all that answer this question can you please help?
A: ATP is called the energy currency of the cell. ATP's full form is adenosine 5' triphosphates. ATP…
Q: In an anabolic reaction A. biological molecules are broken down and the Gibbs free energy…
A: Biological macromolecules are the molecule that are needed in more amount for the body. Major…
Q: The structure below shows a tripeptide at physiological pH with the protonatable groups labeled with…
A: There are twenty amino acids are present, which join with each other via a covalent bond to form a…
Q: Why do we prefer to buy products in solid form rather than in a liquid? (i.e., butter or margarine)
A: Introduction - Solid and Liquid forms are two of the three bases of the State of matter. Solid forms…
Q: Catalysts such as enzymes produced in the gut is always _________ in form and is a type of…
A: Catalysts are substances that increase the rate of the reaction but are not consumed in the process.…
Q: Your protein has a pI of 8.34 and is in a pH 7 buffer. Which of the chromatographs below would you…
A: *Cation exchange chromatography is an ion exchange chromatography used to separate molecules based…
Q: Draw a stepwise mechanism for the attached reaction, which forms thefour-membered ring in…
A: A drug is a chemical substance that is used to treat any pathogenic, physiological or psychological…
Q: DIY Glue State the materials that use to make it. Show the mechanisms of the reaction that occur.
A: The materials necessary for the preparation of glue are as follows: 12 cup of skim (non fat) milk 1…
Q: Fructose and caproic acid are both molecules that contain a 6 carbon backbone. The melting point of…
A: Fructose is a ketonic simple sugar found in many plants, mostly in the fruits born by the pants and…
Q: Since the pk values of aspartic acid are 2.0, 3.9 and 10.0, aspartate predominant species at…
A:
Q: The structure of ephedrine is given, The pKa for ephedrine is 9.6. Answer the following questions…
A: Ephedrine is a medication and stimulant. It is often used to prevent low blood pressure during…
Q: Radioactive uracil can be used to label all the pyrimidine residues in DNA. Explain how this occurs,…
A: Uracil is energetically less expensive to produce than thymine, which may account for its use in…
Q: Soy sauce is prepared in a CLOSED tank by fermenting a salted mixture of soybeans and wheat with…
A: Introduction: Soya sauce is a condiment produced by fermenting soybeans with Aspergillus oryzae or…
Q: Which of the following statement is FALSE ? pKa values of active site residues can be shifted from…
A: Enzymes are the proteins that catalyse the reactions by lowering the activation energy of the…
Q: A solution of starch at room temperature does not readily decompose to form a solution of simple…
A: Question - A solution of starch at room temperature does not readily decompose to form a solution of…
Q: Two therapeutics, methotrexate and fluorouracil, inhibit the formation of dTMP, at different points…
A: Methotrexate also known as amethopterin is anticancer agent and immune system suppressing agent.…
Q: Which of the following statements is not an advantage of employing diversity-oriented synthesis?
A: The correct Answer is C Libraries are produced from complex starting materials
Q: Which of the following mechanisms ensure that the utilization of dietary nucleic acids is effected?…
A: Purine and pyrimidine biosynthesis occurs from the waste products of other metabolic pathways like…
Q: Hydrolysis is an example of which type of reaction?
A: Hydrolysis is the chemical breakdown of substances by water . Catabolic reactions often employ…
Q: In an extension of this experiment, you can perform the acid-catalyzed hydrolysis of starch by…
A: Carbohydrates are the biomolecules which is composed of monosaccharide, disaccharides and…
Q: The synthetic antiviral drug Tamifl u, currently the most effective agent against avian infl uenza,…
A: Tamiflu is an antiviral drug produces from the shikimic acid conversion to oseltamivir, obtained…
Q: Peptide bonds are formed via what type of reaction? A. Condensation B. Hydrolysis C.…
A: When the carboxyl group of one molecule combines with the amino group of the other molecule,…
Q: A 25.0 mL sample of a fruit juice requires 13.0 mL of 0.0100 M I2 solution for reaction. How many…
A: The number of moles of solute dissolves in the volume liter of solution is known as molarity.…
Step by step
Solved in 4 steps
- Which of the following statements about the reaction shown is not necessarily true? LO'Na 15. NaOH H,C. A. This is a hydrolysis reaction. B. The unknown reactant in this reaction is an ester. C. The unknown reactant in this reaction is a carboxylic acid. D. This is an acid-base neutralization reaction. E. None of these statements is necessarily true about the reaction shown, but ALL of them are possibly true.30. The shown structure is a cyclic D-monosaccharide. Which of the following statements is true? HOCH₂ H OH H OH OH CH₂OH A. The chemical can react with methanol to form a hemiacetal in solution without forming an open chain structure B. The chemical needs to form an open chain structure to be able to react with methanol to produce a glycosidic linkage in solution C. Both A and B D. Neither A nor B3. The compound 5-hydroxymethyl furfural forms while heating or cooking sugar-containing foods. HO HO НО ...OH OH OH 5 hydroxymethyl furfural a. Draw arrow-pushing mechanism for the dehydration of fructose under acidic conditions (use H-A). b. What is the driving force for this reaction?
- Sphingolipids do I. contain a glycerol core with a phosphocholine headgroup. II. contain a modified sphingosine. III. usually has a ceramide moiety IV. function as a precursor to sterols. O II, IV O II, II O , II, II O I, II, IVThe role of Zn2+ in catalysis is usually to: a. Stabilize a (-) charge in the transition state O b. Act as a nucleophile Oc. Act as a base Od. Destabilize a (-) charge in the transition state3. Consider the reaction: H3C-(CH₂) H H C—C—C—SCOA HH H₂C-(CH₂) a. What kind of reaction is being performed here? b. What enzyme performs this reaction? -C—C—C—SCOA H H c. What cofactors, if any, are required for this reaction?
- guanosine and a water bind in the active site, does not matter in which order. The scissile N-1 glycosidic bond between the anomeric carbon and N9 of the base is broken resulting in an oxocarbenium transition state. The leaving group electrons are not protonated, but instead swing up to form a double bond between N9 and C8. The double bond that is already present on the purine swings out on N7 and is protonated by an active site histidine acting as a general acid. An active site aspartate acts as a general base, and deprotonates the water substrate molecule. The deprotonated water is then free to attack the transition state in a manner that will generate an αribose. Draw the active site and show how the mechanism works. You will need to draw 3 or 4 different active site “snap-shots” to show the entire process. Be sure to clearly show the transition state and how it might be stabilizeda. Why is it important to eat food containing antioxidants? Write at leasttwo reactions to prove the answer. b. Write in four ways the following nucleotide sequence: ATGCA. c. Explain i. Hoogsteen pairing & ii. Hyperchromic effectiii. Epimers Iv. Mutarotaton v. Aldose vi. Anomers vii. Mutarotation6. Treatment of cholesterol with mCPBA results in formation of a single epoxide A, with the stereochemistry drawn. Why isn't the isomeric epoxide B formed to any extent? H. H H HO HO A B
- During our experiment, Sucrose tested positive for Benedict's Test. Benedict's test us actually a test for reducing sugars. Sucrose is a non-reducing sugar. Why is that? Kindly explain the theoretical reactions and explain principle/mechanism behind the test.7. Complete the following reactions: ( 关关 H H H OH H H NIC 8. Compare hydrolase and lyase enzymes. ( OH I + HOFor the following tetrapeptide: CKSWa. Draw its complete protonic equilibria. Indicate the net charge of each form and encircle the zwitterionic form. b. Give the full name of the tetrapeptide. c. Calculate its IpH. d. If the tetrapeptide was subjected to electrophoresis using a buffer solution at pH 7, at which electrode it will migrate?