Bacterial aldolase does not form a Schiff base with the substrate. Instead, it has a divalent Zn2+ ion in the active site. How does the ion facilitate the aldolase reaction?

Q: Please explain what happened in the reaction. How did H2SO4 and 3H2O reacted with the glucose?

A: Carbohydrates are polyhydroxy aldehydes or ketones or compounds that yield them on hydrolysis.…

Q: Catalase has a Km of 25 mM and a kcat of 4.0 x 107 s−1 with H2O2 as a substrate. Carbonic anhydrase…

A: An enzyme is a substance that acts as a catalyst in living organisms, regulating the rate at which…

Q: Why can it be said that the enzymatic action is highly specific?

A: Enzymes are a form of protein which do the necessary biochemical reaction in the body. Enzymes that…

Q: Which of the following enzymes are required for the shown reaction? a. a-ketoglutarate…

A: The last common mechanism for the oxidation of proteins, lipids, and carbohydrates is the citric…

Q: The enzyme that catalyzes reaction below can be classified as: CoO COO NAD+ NADH + H* Но- | malate…

A: Malate dehydrogenase (MDH) is an enzyme broadly distributed among living life forms and is a vital…

Q: Select the following enzymes that utilize a mechanism where ATP serves as the phosphate donor.…

A: Aerobic metabolism is a set of three basic metabolic processes that occur in cells to generate…

Q: Potassium cyanide is a poison, which combines with cytochrome a3 to prevent binding of oxygen to the…

A: Enzymes are  highly specialized proteins that have extraordinary catalytic power, greater than that…

Q: Do you think that catalase should be able to attach to other substrates besides H2O2? Why or why…

A: Catalase is an enzyme that catalyzes the reaction by which hydrogen peroxide is broken down into…

Q: The metabolism of alcohol pathway is showed in the figure characterized by biotransformation of:…

A: Metabolism-  The primary enzyme involved in the metabolism of alcohol is ADH( Alcohol dehydrogenase)…

Q: Mercuric ion and methanol are inhibitors of alcohol dehydrogenase. Explain.

A: Alcohol (ADH) dehydrogenase is an enzyme that helps in the interconversion of alcohol into ketones…

Q: Which type of Enzymatic inhibition is commonly found in Pharma and why?

A: The inhibitors are the molecules that inhibit or decrease the activity of enzyme in catalyzing the…

Q: [methyl-14C]Pyruvate was administered to isolated liver cells in the presence of sufficient malonate…

A: Succinate dehydrogenase or respiratory complex II is an enzyme complex, found in many bacterial…

Q: List the components of the enzyme complex involved in the transition step   and  Simply describe…

A: Components of the enzyme complex :-

Q: What are the three most common mechanisms forenzyme-catalyzed reactions that have two substrates?

A: Introduction: There are three mechanisms for enzyme-catalyzed reactions having two substrates:…

Q: Why does FAD accepts 2 protons in dehydration of succinate to fumarate? Why dont NAD molecules…

A: In the Citric Acid Cycle, The FAD accepts 2 protons in dehydration to fumarate. Here we will discuss…

Q: dipeptide + H2O → 2 amino acids An enzyme that catalyzes the reaction above would be called a a.…

A: Enzymes are the protein molecule, which helps in the catalysis of the chemical reaction.

Q: In the first step of the aldolase reaction, an active site Lys229 residue, with its side chain amino…

A: Amino acids are organic compounds that consist of an alpha amino group, alpha carboxyl group, and…

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: The thiolate anion of CoA acts as a/an nucleophile attacking the carbonyl carbon of the enzyme bound…

A: Fatty acid are activated to acyl CoA by thiokinase or acyl CoA synthetase. This step occurs in…

Q: What does the term “oxidative phosphorylation” mean? What is substrate-level phosphorylation? Are…

A: Cellular respiration is a set of metabolic reactions which takes place in the cells to covert…

Q: Mechanistically, how does NADPH facilitate the removal of an oxygen atom from intermediates in fatty…

A: Fatty acid synthesis is the production of fatty acids from acetyl-CoA and NADPH through the action…

Q: Give the systematic names and the first three digits in the E.C. classifications of the enzymes…

A: Enzymes are biocatalyst. They increase the speed of reaction by lowering the activation energy. A…

Q: Match the reactions above to the descriptions below concerning the steps in converting glucose to…

A: Vitamin C is also known as ascorbic acid . It is used to prevent and treat scurvy. It's an essential…

Q: If OAT takes ornithine and alpha-ketoglutarate as (a) substrates, draw the structures of the…

A: Aminotransferases are group of enzymes that catalyzes the transamination reaction between amino acid…

Q: In the 1step of the 2-step reaction shown below, which substrate/co-substrate is being oxidized?…

A: The above reaction is a part of beta oxidation of fatty acid  process.

Q: What is the substrate that is not produced during the non-oxidative phase of the pentose phosphate…

A: Asked : The substrate not produced during the non-oxidative phase of the pentose phosphate pathway

Q: Since cells of Halobacterium require high levels of Na+ for growth,why is this not true for the…

A: The Halobacterium belongs to the domain Archaea. These bacteria metabolize in an aerobic environment…

Q: Which of the following statements regarding the catalytic mechanism of superoxide dismutase is true?…

A:

Q: Beer production requires an early period of rapid aerobic metabolismof glucose by yeast. Given that…

A: Alcoholic fermentation refers to the anaerobic degradation of the pyruvic acid to form ethanol. It…

Q: Why is citrate an appropriate inhibitor of phosphofructokinase?

A: Citrate allosterically inhibits  phosphofructokinase by enhancing the inhibitory effect of ATP

Q: Why is the TCA cycle is important for both anabolic and catabolic reactions?

A: After each turn of the TCA cycle, oxaloacetate is regenerated and can combine with another…

Q: Which of the PDH coenzymes does not get restored to its original form at the end of the PDH…

A: PDH means pyruvate dehydrogenase complex. PDH complex catalyzes the conversion of pyruvate to acetyl…

Q: A. Give a systematic name for the enzyme that would act on each of the following substrates 1.…

A: Enzymes are biological catalysts in that they speed up biological metabolic reactions. Enzymes act…

Q: Explain the details in the individual steps in the Michaelis-Menten mechanism of converting…

A: Enzyme is basically biocatalyst that increase the rate of chemical reaction without itself being…

Q: Human beings contain two different carbamoyl phosphate synthetase enzymes. One uses glutamine as a…

A: The ATP-dependent synthesis of carbamoyl phosphate from glutamine or ammonia is catalyzed by…

Q: Which of the following is true regarding substrate level phosphorylation?

A: A metabolic reaction which results in the formation of ATP or GTP by the transfer of an inorganic…

Q: A diazotrophic bacterium has a mutant glutamine synthetase with decreased activity. The mutant is…

A: Diazotrophs are PGPB (promote plant growth) and capeble of fixing atmospheric nitrogen gas into…

Q: In the reaction catalyzed by malate dehydrogenase, which of the following molecules is classified as…

A: Malate dehydrogenase enzyme is involved in the TCA cycle that occurs in the mitochondrial matrix.…

Q: Which one of the following statements does NOT correctly describe the current state of the…

A: Chymotrypsin is synthesized in the pancreas. Chymotrypsin is the serine protease. In the active site…

Q: [methyl-14C]Pyruvate was administered to isolated liver cells in the presence of sufficient malonate…

A: When the radioactive pyruvate at methyl carbon (carbon number 3) would be administered to the liver…

Q: Explain the chemical mechanism yeast alcohol dehydrogenase undergoes?

A: Yeast alcohol dehydrogenase is the enzyme that reduces acetaldehyde to ethanol during the…

Q: During glycolysis, the enzyme Aldolase catalyzes the splitting of fructose 1,6-bisphosphate into…

A: The glycolysis mechanism breaks down one glucose molecule into two pyruvic acid molecules (also…

Q: What is the likely substrate of α ketoglutatrate dehydrogenase? A) water B) alpha ketoglutatrate C)…

A: Tri carboxylic acid cycle is a amphibolic pathway that means it involves both catabolic and anabolic…

Q: Why do the cytochrome electron-transfer processes have different standard reduction potentials,…

A: The propensity of chemical species to absorb electrons from the electrode or lose electrons from the…

Q: How could a competitive inhibitor enhance the rate of the ATCase reaction?

A: Reaction velocity was measured in the absence of  allosteric effectors, in presence of CTP (…

Q: An experiment is performed using glucose labeled with 14C at C-5. If the reaction is monitored in…

A: Cellular respiration is a catabolic pathway of the process of metabolism, where a series of chemical…

Q: Explain why the maximum initial reaction rate cannot be reached at low substrate concentrations

A: The rate of reaction when the enzyme is saturated with substrate is the maximum rate of reaction…

Q: Discuss that What kind of reaction is catalyzed by each of the following enzymes? a. citrate…

A: Enzymes are proteins that operate as biological catalysts in all living creatures, facilitating…

Q: In _____________ inhibition, the EI complex readily dissociates and the enzyme is again available…

A: Enzyme inhibition refers to a decrease in enzyme-related processes, enzyme production or enzyme…

Q: Suggest a name for an enzyme that catalyzes each of the following reactions. Oxidation of nitrite…

A: The catalysis in which the performance of the biological molecule increases by the enzyme is called…

Metabolic pathways

Metabolism is defined as the group of life-supporting, enzyme-mediated chemical reactions in organisms. A metabolic pathway is a set of these chemical reactions that involve anabolism (synthesis of complex biomolecules) and catabolism (breakdown of biomolecules into small molecules) that occur inside a cell. Metabolites are the reacting substances, products, and intermediate substances of an enzymatic process that are altered by a series of chemical events catalyzed by enzymes.