Which of the following is incorrect about the chymotrypsin mechanism? a. When His removes a proton from Ser, it is acting as an acid Ob. Asp does not act as an acid O c. Asp, through a H-bond, holds His in the proper orientation Od. After being deprotonated, Ser acts as a nucleophile
Q: What carbohydrate is generally detected using the Molisch test?* A. Monosaccharide B. Disaccharide…
A: Carbohydrates or sugars are the most abundant biopolymers in living organisms. Carbohydrates are…
Q: For the organism that live there, only the size of a habitat matters, not it’s shape. true or…
A: The composition and arrangement of physical matter at a location is defined as habitat structure. A…
Q: Question 23 Explain the structure of your protein. (Up to 100 words) For the toolbar, press ALT+F10…
A: When asked to explain the structure of a protein, we must describe the primary, secondary and…
Q: Which of the following accurately describes biotechnology? Using biological processes for…
A: Biotechnology as the word refers it a combined use of biology and technology. It a technological…
Q: At surgery a tumor was removed from the liver which contained fibrous tissue, hemorrhage,…
A: Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies. They…
Q: 3. Write out the net balanced reaction for the production of cytoplasmic malonyl-CoA starting with…
A: Malonyl CoA synthesis: The enzyme Acetyl-CoA carboxylase (ACC) catalyzes the production of one…
Q: Which of the following sets corresponds to nonpolar amino acids? a. Met, Ile, Glu b. Ala, Leu, Trp…
A: Amino acids are α-amino carboxylic acids that are the basic building blocks of proteins. Amino acids…
Q: Draw the condensed structural formulas for the products of the reaction of which is catalyzed by…
A: Enzymes are the biocatalysts that speed up biochemical reactions. These are generally proteins. AST…
Q: This test gives yellow solution, indicating the presence of proline* A. Biuret B. Ninhydrin C.…
A: Different of the tests mentioned here are tests for detection of amino acids. In the next step we…
Q: An enzyme catalysed reaction has a Km of 8 mM and a Vmax of 13 nM.s-1. Use the Michaelis-Menten…
A:
Q: 13. If electrons are not flowing through the electron transport chain, how will the proton in the…
A: Cyanide acts like a road block on highway that inhibits complex IV of ETC.Cyanide permanently…
Q: The apical surfaces of hair cells are exposed to an unusual extracellular fluid called endolymph.…
A: Endolymph is an extracellular fluid present in the inner ear. It is also known as Scarpa fluid. This…
Q: a) 2-Hydroxy-carboxylic acids in the citric acid cycle and in glycolysis (3 answers): b) how do the…
A: Note : Hi ! Thank you for the question. We are authorized to answer one question at a time. Since…
Q: Cholesterol-lipid microdomains are often referred to as membrane rafts.
A: True.
Q: hi please answer all and i'll give you like
A: As you have posted a question with multiple sub parts we are supposed to answer only first 3 sub…
Q: 2. Calculate the overall charge (pH 7) on the following three polypeptides and answer the questions…
A: Proteins or peptides are composed of twenty standard amino acids that differ from each other on the…
Q: Using appropriate diseases as examples, describe three molecular techniques that can be used in…
A: Three molecular techniques involved in disease diagnosis are: 1. Various amplification techniques…
Q: Which of the following is true about vitamin D3 (cholecalciferol)? A. It is a sterol. B. It is a…
A: Lipids are one of the 4 major biomacromolecules. There are several different types of lipids and…
Q: The central compound found in the structure of sphingolipids: OA. glycerol OB. sphingosine O c.…
A: A biological membrane having polar lipids as an essential component includes phospholipids…
Q: What is micropropagation? Describe the different in-vitro stages in the micropropagation of any…
A: Plant tissue culture is a technique in plant biotechnology. This technique involves the culturing of…
Q: An enzyme has 10 times greater affinity for substrate "A" than for substrate "B". Which of the…
A: Enzymes are bio-catalyst that participate in biochemical process and they are highly specific in…
Q: The steps of glycolysis between glyceraldehyde 3-phosphate and 3-phosphoglycerate involve all of the…
A: Glycolysis is a catabolic pathway where glucose is broken down into pyruvate molecules that enter…
Q: Substituting antisense oligonucleotide non-bridging oxygen atoms with a sulpha atom: Select
A: Ans. 1. Option d is correct The antisense nucleotide non bridging oxygen atom replace by the sulphur…
Q: 3. Below is a polypeptide with an unknown number of amino acids. (Standard 4) One the diagram below:…
A: Since you have posted multiple questions with multiple sub-parts, we will solve the first three…
Q: Which of the following is incorrect about an omega-3 fatty acid whose hydrocarbon chain has only one…
A: Omega-3 fatty acids are defined as polyunsaturated fatty acids (PUFA) which have a double bond…
Q: Numerically small Km means that there is a need of concentration of a substrate to reach the half of…
A: Enzymes are highly specialized proteins that have extraordinary catalytic power, greater than that…
Q: Consider the peptide with the sequence SANTACLAUSISASTALKER. Assume this entire pepide were a single…
A: Proteins are the heteropolymers of amino acids. The proteins are made up of twenty standard amino…
Q: What class does your HindIII enzyme belong?
A: HindIII is a restriction endonuclease (RE).
Q: Which of the following will form an osazone crystal?* A. Galactose only B. Mannose only C. Sucrose…
A: The Osazone test or phenyl hydrazine test is chemical reaction used to detect reducing sugars and…
Q: Which of the following is incorrect? a. Without an enzyme, reaction rate can be increased by…
A: Enzymes are the catalysts of biochemical reactions that increase the rate of reaction. Enzymes have…
Q: If I take a sample of a person's white blood cells, 60% to 70% of them will be the "first responder"…
A: White blood cells are also known as leukocytes which are involved in the immune responses. They're…
Q: Protein A interacts with biomolecule B and forms a complex AB, with a dissociation constant KD = 1…
A: The reaction is:AB↔A+B, with dissociation constant being Kd=1μM at 298KA biochemist mutated the…
Q: The presence of glucose in appreciable amounts in the urine is referred to?* Please choose one…
A: Human urine is primarily composed of water (95%). The rest is made up of urea (2%), creatinine…
Q: Which of the following is incorrect about chymotrypsin, trypsin, and elastase? a. They catalyze the…
A: Introduction: Chymotrypsin is a digestive enzyme present in our bodies which is secreted by the…
Q: Which forward are reverse primers will amplify the following sequence by PCR?…
A: As given in the question, forward and reverse primer sequences are to be identified to amplify the…
Q: During strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction…
A: During strenuous exercise, the glycolysis that continues is known as anaerobic glycolysis and the…
Q: Under anaerobic conditions, pyruvate will be converted to lactic acid. Why does this occur? To…
A: Anaerobic Glycolysis is the catabolic process during which Glucose is broken down into lactic acid…
Q: Enzyme kinetics uses math to quantify all of the following, except: a. An enzyme's substrate…
A: Enzymes are biocatalysts that facilitate the biochemical reactions by decreasing the activation…
Q: Which of the following best describes the lipid aggregates known as liposomes? A. They contain a…
A: Liposomes are spherical structures that enclose aqueous compartment inside surrounded by Phospho…
Q: Which of the following is incorrect? a. Hemoglobin transports oxygen through the blood from the…
A: Haemoglobin is a transport protein that is important for the transport of gases like oxygen in the…
Q: Under what conditions will lactic acid accumulate in skeletal muscle? A. when citric acid enzymes…
A: Lactic acid is the end product of anaerobic Glycolysis where Glucose is oxidised to lactic acid.
Q: 3.2 In the scheme below, a globular structure of a trans-membrane protein within the cellular…
A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: You are supplied with an unknown protein that consists of more than 130 amino acids. Furthermore…
A: Proteins are made up of Aminoacids. There are four levels of organisation of protein structure. They…
Q: Separation of Amino Acids by Thin Layer Chromatography Lab Questions 4. Why is it necessary to run…
A: Thin Layer Chromatography (TLC) is a type of partition chromatography. Here, partition occurs…
Q: Which of the following is incorrect? a. A heterodimer is composed by two identical polypeptide…
A: a) The heterodimer is composed of two different subunits, they are not made up of two identical…
Q: INSTRUCTION: = IF BOTH STATEMENT ARE TRUE = IF FIRST STATEMENT IS TRUE WHILE SECOND STATEMENT IS…
A: RNA is called ribonucleic acid. RNA has several different forms based on their function and these…
Q: How many calories are stored in fat per pound?* Please choose one correct answer only. A. 9 B. 4…
A: Calories are the units of energy used by our body during food digestion and absorption. Calories…
Q: Conjugated proteins which are a combination of amino acids and carbohydrates O A. nucleoproteins OB.…
A: Based on the composition, proteins are of two types, simple and conjugated proteins. The simple…
Q: Assume that glycolysis is completely inhibited and thus glucose cannot be converted to pyruvate.…
A: All these reactions of carbohydrate oxidation take place in the liver. Glycolysis occurs in cytosol…
Q: Need assistance
A: Hi, thank you for posting the question on Bartleby. As per the guidelines, we can answer only the…
Step by step
Solved in 2 steps
- Which one of the following best describes the role of water in the reaction that is catalyzed by chymotrypsin? choose the best answer based on your coverage. Water forms several H-bonds with the transition state to stabilize it. Water deprotonates the Ser, converting Ser into a strong nucleophile. Water is a product of the reaction. His deprotonates the water, converting the water into a strong nucleophile. Water serves as a catalyst, being consumed and then regenerated in the reaction.Which of the following is false about chymotrypsin? A Hydrolytic cleavage of a peptide bond by chymotrypsin involves two nucleophilic attacks to the substrate B It is activated in the presence of trypsin C It is synthesized in the thyroid gland D Polypeptide chains in chymotrypsin are linked by S-S bondsCarbon monoxide competes with hemoglobin for 02 binding, resulting in toxicity. Is it possible that carbon monoxide is an allosteric effector? No, since it competes with the molecule O for the active site. Yes, since it will minimize the amount of 02 binding. O Yes, since it competes with the molecule O for the active site. No, since it is a negative effector that reduces 02 binding.
- The 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 stateRegarding the mechanism of action of chymotrypsin, the formation of a strong hydrogen bond with the hydroxyl group (serine amino acid) increase its: Basicity Nucleophilicity All the answers are correct Electron densityWhat are the effects of different light colors in photosynthesis? Different light colors will change the rate of photosynthesis Light color does not affect photosynthesis Carbohydrates are metabolized by light Photosynthesis does not require light
- Allosteric inhibitors of hemoglobin will decrease enzyme activity (oxygen binding) through which of the following mechanisms? Binding the enzyme in "T" conformation and displacing an activator Binding the enzyme and enhancing the Vmax Binding the enzyme, and keeping it in the "R" conformation Binding the enzyme, and keeping it in the "T" conformationA defect in which of the following enzymes leads to Tay- Sachs disease? O Phospholipase CO a-galactosidase A O Hexosamidase A O SphingomyelinaseWhich of the following statements is true about the chymotrypsin reaction? 1. The catalytic triad at the active site is formed by three residues: His, Gly, and Ser 2. When the substrate is p-Nitrophenylacetate, the rate-limiting step is the release of p-Nitrophenolate. 3. During the reaction, LBHB forms when the proton is donated to His from Ser or water. 4. The chymotrypsin reaction involves “only” specific acid-base catalysis 5. The “oxyanion hole” is formed by the amide nitrogens of Ser and Glu
- Which of the following is an example of anapleurotic reactionA type Il beta turn has what residue as one of the four residues that make up the turn? OAP O B. G C.I O D.A O E. Q Once a substrate is bound to the active site, there are a variety of mechanisms that aid in the cleavage and formation of bonds. Thesa incudn. OA General acid base catalysis by amino acid side chains which can act as proton donors and acceptors. OB. Metal ion catalysis where tightly bound metal ligands can participate in cataus. Oc covalent catalysis where the enzyme forms transient covalent bonds with reactants and these bonds are later broken O D.all of the above E. only A and C The Ramachandran plot describes the peptide conformation by illustrating the position of the dihedral angles that can rotate following. OA side-chain steric hindrance B. restrictions imposed by secondary structure OC. main-chain clashes from the bulky carbonyl oxygen or amide nitrogen with other main-chain atoms or side-chains O D. All of the above E. None of the aboveBased on what is known about the mechanism of Chymotrypsin, which molecules would be inhibitors of the enzyme? Which molecules are the best inhibitor? A B 'R' C Rº D ofer