All enzymes are proteins O True O False
Q: Enzymes increase the rate of reaction by increasing molecular motion, thereby providing the energy…
A: *Note: Since you have asked multiple question, we will solve the first question for you. If you want…
Q: Which of the following environmental conditions may have aninfluence on enzyme activity?a. substrate…
A: There are many chemical reactions that are taking place in the giving cells. Enzymes are the…
Q: The protein portion of a conjugated enzyme is called a(n).
A: Enzymes are proteins that facilitate in the speeding up of our bodies' metabolism, or chemical…
Q: ical reaction, the are converted to products. Select all that apply. reactants J enzymes O catalysts…
A: A chemical reaction is a process in which one or more substances called reactants are converted to…
Q: The entire set of chemical reactions occurring in a living system is referred to as: O a..…
A: The regulation of metabolism involves the processes by which metabolic pathways (both the anabolic…
Q: What is the minimum and maximum pH in which Enzyme Y will work? What is the optimal (best) pH? Y 1 2…
A: Enzymes are the biocatalyst that increases the rate of chemical reaction without itself being…
Q: Doubling the concentration of enzyme will the Vmax and the KM- O double, double O halve, halve not…
A: Introduction: Those substances that increase the pace of the reaction without undergoing any change…
Q: ake place within your body are
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Q: Enzymes have a specific 3D structure that matches with the reaction substrates.
A: Enzymes are proteins so, like proteins enzymes also have primary, secondary, tertiary and quaternary…
Q: - Enzyme Kinetics
A: Enzyme kinetics: Part A. [S]is the concentration of…
Q: Enzymes activity is the best at: O Optimal pH O Optimal temperature O Any condition O Optimal pH and…
A: Enzymes are biological catalysts that change the pace of chemical processes. Enzyme activity (the…
Q: Wil save this response Question 10 True/False Question: The activity of an enzyme usually does not…
A: Enzymes are protein or RNA which catalyses the reaction by lowering it's activation energy but…
Q: The reaction is considered endergonic when it Select one: O A. has positive AG O B. requires energy…
A: A reaction involves reactants and products. The formation of the products generates some amount of…
Q: The energy molecule for the cell is ATP. O True O False
A: The cell is the structural and functional unit of life. The cell comprises of several organelles…
Q: It is impossible for a mixture of amino acids to make one unique type of proteins because, free…
A: Amino acids are the polymers of proteins and these are linked by a peptide bond to form a…
Q: True or False? The site on an enzyme to which the substrate binds is called the allosteric site. O…
A: Enzymes are proteinaceous substances which acts as biocatalysts in living organisms which increases…
Q: An enzyme is classified as a(n): O Carbohydrate O Nucleic Acid O Protein Lipid
A: "Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: Anabolism refers to the metabolic reactions involved in building larger molecules and…
A: Metabolism is the totality of chemical reactions that occur within each cell of a living creature…
Q: Enzymes are usually stereoselective for their substrates (can preferentially bind and act only on a…
A: Enzymes are specific that is they have a specific shape and therefore only a certain substrate can…
Q: The line to the right labeled "with inhibitor" shows the expected behavior of a chemical reaction in…
A: The enzymes are biocatalyst that person specific chemical reaction. Each enzyme has an active site…
Q: A Holoenzyme is * Apo enzyme O Coenzyme O Both of them None of them
A: Enzymes are biomolecules that play a vital part in all biochemical reactions by increasing their…
Q: Based on the diagram, the red image in the center picture represents... → O enzyme O product O…
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Q: This is true of most anabolic reactions: O They occur in your digestive system O They release energy…
A: Anabolic reactions are the reactions involved in the process of metabolism; these reactions join…
Q: The binding between the substrate and the active site of the enzyme: O Is very specific O Resemble…
A: Enzyme is a biocatalyst. It speeds up the reaction.
Q: A В C On the image, letter represents the enzyme. D
A: The enzyme is a type of protein molecule that is present in all living organisms and plays an…
Q: The major building blocks of most enzymes are * O Nucleotide Amino acids O Monosaccharides O Cyclic…
A: The building blocks of nucleic acids are nucleotides. One nucleotide has sugar, phosphate and…
Q: What factors might affect the rate of enzyme action (slow it down)? O Temperature O pH O None of…
A: Both A and B(Temperature and PH) can affect the rate of enzyme action
Q: in not more than 5 sentences a. The lock and key model for enzyme activity b. Relationship of…
A: a. Each enzyme is built in a certain way to help with a specific process. This implies that there is…
Q: Catalase is an enzyme that breaks down hydrogen peroxide in the cell. When there is more hydrogen…
A: Catalase It is the enzyme that is helpful in breaking down hydrogen peroxide (H2O2) into oxygen and…
Q: Which statement does not describe an enzyme? enzymes are used up (consumed) by a reaction O in…
A: Enzymes are biological proteins which help catalyse the chemical reactions occuring.
Q: EFFECT OF TEMPERATURE ON ENZYME ACTIVITY Results: Tub Temperature Benedict's test Iodine test Ice…
A: In mouth the teeth cut an pulverize food to reduce solids to smaller particles for swallowing i.e.,…
Q: What happens when enzymes are heated to a high temperature? * O The enzymes lowers activation energy…
A: Enzymes are the biological catalyst that accelerates the biochemical reaction in the body. They are…
Q: The enzyme is * A B C. D
A: Enzymes are the biocatalyst that can increase the rate of biochemical reaction without itself being…
Q: Mitochondria contain anout 1500 different proteins true false
A: Mitochondria (plural: mitochondrion) are membrane-bound cell organelles that produce the majority of…
Q: Most enzymes are composed of what organic molecule? P
A: Enzymes are macromolecular biological catalysts that accelerate chemical reactions. The molecules…
Q: True/False Question: Enzymes do not shift the equilibrium of the reactions that they catalyze. O…
A: Enzymes are catalyst which lowers the activation energy in order to increase the rate of reaction…
Q: The enzyme becomes denatured if the temperature is compared to its optimal temperature: O a. Too low…
A: Enzymes are the biomolecules that act as a catalyst in the biochemical reaction and can increase the…
Q: A thermodynamically spontaneous reaction O A. happens quickly, with no addition o energy to the…
A: Answer. A thermodynamically spontaneous reaction is a process that proceeds on its own and does not…
Q: Reactant + Reactant → Products Nothing Works Without Enzymes ALL reactions in living organisms…
A: Introduction Enzymes are biological catalysts that are proteins. Chemical reactions are sped up with…
Q: The inhibition that make permanent damage to an enzyme is called: O Noncompetitive O Competitive O…
A: The enzymes are biocatalysts. These work as biochemical catalysts and catalyze different reactions…
Q: In feedback inhibition, the end product of a reaction inhibits the activity of an enzyme early in…
A: Enzyme inhibition is the decrease in enzyme-related processes or enzyme production or its activity.…
Q: Most enzymes are: O Nucleotides Proteins O O O O Lipids O Carbohydrates
A: As we know that an enzyme is a biocatalyst that increases the rate of chemical reaction .All the…
Q: A Proenzymes is inactive because it contain an additional polypeptide chain that masks(blocks) the…
A: Proenzymes are also known as zymogens which require a change to get activated into functional form.…
Q: If energy is never destroye
A: # Here I am giving answer of question 1 only . Please send questions one by one in the portal. Ans…
Q: Some enzymes are not proteins: O a. TRUE O b. FALSE
A: Enzymes are the biomolecules that act as catalyst in the biochemical reactions and increase the rate…
Q: Enzymes are sensitive to changes in the hydrogen ion concentration becasue Select one: O a. Most…
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Q: Which of the following statements DOES NOT describe the enzyme active site? O Itis where the…
A: Enzymes are a class of proteins except for ribozymes (class of RNA) that elevates the pace of the…
Q: Enzyme specificity us given by :- а) Km b) Vmax c) both d) none
A: Specificity of an enzyme is a property that describes enzyme's choice for its particular substrate .
Q: A catalyzed reaction requires more activation energy to proceed than one without a catalyst. True…
A: The enzyme show catalytic property. They can't initiate or stop a reaction, but only accelerate the…
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- In an enzymatic reaction: a. the enzyme leaves the reaction chemically unchanged. b. if the enzyme molecules approach maximal rate, and the substrate is continually increased, the rate of the reaction does not reach saturation. c. in the stomach, enzymes would have an optimal activity at a neutral pH. d. increasing temperature above the optimal value slows the reaction rate. e. the least important level of organization for an enzyme is its tertiary structure.Which of the following statements about the allosteric site is true? a. The allosteric site is a second active site on a substrate in a metabolic pathway. b. The allosteric site on an enzyme can allow the product of a metabolic pathway to inhibit that enzyme and stop the pathway. c. When the allosteric site of an enzyme is occupied, the reaction is irreversible and the enzyme cannot react again. d. An allosteric activator prevents binding at the active site. e. An enzyme that possesses allosteric sites does not possess an active site.an enzyme acts on a substrate X. The enzyme exists in four different forms, with different catalytic efficiencies. The table shows the kcatand KM values for each form of the enzyme. If the concentration of substrate X in a solution is 5 µM, which of the four forms of the enzyme is the most efficient? Form of Enzyme kcat (s-1) KM (µM) A 50 10 B 50 1 C 100 4 D 1000 100 a. Form A b. Form B c. Form D d. Form C
- 6. The initial velocity, vo, of an enzyme-catalyzed reaction reaches Vmax— at [S] = 10KM. at [S] = KM. at 1/[S] = 1/KM. only as kcat/KM —> 1. only as 1/[S] —> 0.1)Catalase a. Is catalase activity endothermic or exothermic? b. What classification of enzyme is catalase? c. Give the Enzyme Commission (E.C.) number of catalase. d. Is catalase reusable? answer all and don't copy from other sources I will downvote for sure26. AN ORGANIC COFACTOR IN A CONJUGATED ENZYME?A. NEITHER VITAMINS NOR MINERALSB. MINERALS C. VITAMINSD. BOTH VITAMINS AND MINERALS 27. WHICH OF THE FOLLOWING STATEMENTS CONCERNING COFACTORS IS INCORRECT?A. VITAMINS CANNOT BE COFACTORSB. SOME COFACTORS ARE METAL IONS C. COFACTOR IS THE NON-PROTEIN PORTION OF ENZYME D. CONJUGATED ENZYMES CONTAIN COFACTORS 28. WHICH OF THE FOLLOWING VITAMINS IS NOT A FAT SOLUBLE VITAMIN? A. VITAMIN E B. VITAMIN C C. VITAMIN A D. VITAMIN D 29. WHAT HAPPENS TO SUBSTRATE MOLECULES AT AN ENZYME ACTIVE SITE?A. ALWAYS REACT WITH OXYGEN B. UNDERGO CHANGE TO A DESIRED PRODUCTS C. BECOME CATALYST C ALWAYS REACT WITH OXYGEN B UNDERGO CHANGE TO A DESIRED PRODUCT D. BECOME COVALENTLY BONDED TO THE ENZYME D. BECOME COVALENTLY BONDED TO THE ENZYME 30. ACTION OF CHEMICAL WARFARE AND ORGANOPHOSPHATE INSECTICIDE ARE BASED ON?A. REVERSIBLE ENZYME INHIBITOR B. IRREVERSIBLE ENZYME INHIBITOR C. REVERSIBLE ENZYME ACTIVATOR D. IRREVERSIBLE ENZYME ACTIVATOR
- 1. The concentration of substrate X is high. What happens to the rate of the enzyme-catalyzed reaction if the concentration of substrate X is reduced? Explain. 2. An enzyme has an optimum pH of 7.2. What is most likely to happen to the activity of the enzyme if the pH drops to 6.2? Explainthe amino acid glutamic acid is at the active site of an enzyme. Normally the enzyme is active at pH 7. at pH 4 (higher concentration of H+), the enzyme is inactive. Explain there observations3. Inside the treasure chest, you find that whoever last left this treasure had discovered an amazing new enzyme that will revolutionize life as we know it. It’s clear from the diagram provided along with the vial that the enzyme converts a substrate (S) into a product (P), with a Ks of 5 mM. You decide to set up an experiment: you add the enzyme to an initial substrate concentration of 15 µM. You note that after 8 minutes the concentration of the substrate is halved. What is the rate constant k, the vmax and the product concentration after 14 minutes?
- 7.8 The turnover number is defined as the maximum number of substrate molecules that can be converted into product molecules per unit time by an enzyme molecule. The concentration of enzyme active sites is not necessarily equal to the concentration of enzyme molecules, because some enzyme molecules have more than one active site. If the enzyme molecule has one active site, the turnover number is given by turnover number=?max[E]t=?2(?max is often written as ?max)turnover number=Rmax[E]t=k2(Rmax is often written as Vmax) If the enzyme molecule has more than one active site, then [E]t[E]t is multiplied by the number of active sites to determine its effective concentration. Determine the value of the turnover number of the enzyme carbonic anhydrase, given that ?maxRmax for carbonic anhydrase equals 249 μmol⋅L−1⋅s−1249 μmol⋅L−1⋅s−1 and [E]t=2.16 nmol⋅L−1[E]t=2.16 nmol⋅L−1 . Carbonic anhydrase has a single active site. turnover number =An enzymatic reaction with KM = 4.4 x 10-5 M, is carried out in 400 μL of of solution containing 0.20 nmoles of enzyme. It is observed that Vmax = 6.6 x 10-3 M/s. What is the kcat value for the enzyme? (HINT: Keep an eye on the units)!!! a. 1.50 x 102 s-1 b. 7.56 x 10-5 min-1 c. 1.32 x 104 s-1 d. 3.3 x 106 s-1Define the following terms:a. catalystb. transition statec. substrated. activation energye. active site2. Define the foll
