If an enzyme in field-grown soybean leaves is most activeat noon and least active at midnight, is its activity undercircadian regulation?

Q: Why is water excluded from the active site of phosphorylase? Predict the effect of a mutation that…

A: Glycogen phosphorylase catalyzes the rate-limiting step in glycogenolysis in animals by releasing…

Q: What is the simplest explanation in the notion that phosphofructokinase is a regulated enzyme?

A: Phosphofructokinase regulated by ATP, an ADp derivative called AMP, and citrate, as well as some…

Q: With respect to cell metabolism, what is “energy coupling”? Give a very simple example.

A: Cellular metabolism:It is defined as a set of chemical reactions which takes place in living…

Q: Is the statement during fatty acid biosynthesis, NADH is used as the reducing equivalent in the…

A: Ans: Fatty acid synthesis, the process formation of fatty acids from acetyl CoA and NADPH with the…

Q: What is the biochemical relevance of cori cycle

A: Introduction: The chemical reactions that occur within the living body for the production of energy…

Q: Enzymes act by reducing the activation energy of areaction. Describe several ways in which this…

A: Enzymes are biomolecules which catalyzes the reactions so that reactions take less time to complete…

Q: Explain the basic steps in the Krebs cycle, its input and output, andhow it is linked to oxidative…

A: Krebs' cycle, commonly known as Citric acid cycle or tricarboxylic acid(TCA) cycle, is a central…

Q: What is the impact of new km value 0.1mM compared to previous km value 0.05mM on affinity of the…

A: Here the graph shows, km value of 0.1mM decreased when compared to 0.05mM. Affinity for the enzyme…

Q: Which biochemical reactions are taking place on a molecular level during cocoa bean fermentation?

A: Cocoa seeds are fermented to increase the flavour of beverages and bakery products, which are…

Q: What is a word equation for the enzyme catalys phenoloxidase?

A: enzymes are bio catalyst which lower the energy of activation and increase the speed of the reaction…

Q: Suppose that a mutant enzyme binds a substrate 100 times as tightly as does the native enzyme. What…

A: The transition state is the transitory state of molecular structure in which the molecule is no…

Q: Produce a bar graph that shows the effect of substrate concentration on the rate of reaction for…

A: A graph of the relative reaction rate (1/time taken for a color change to occur) showed that, as the…

Q: Many organisms are able to live in extremely cold or hot temperatures, for example, the thermophilic…

A: There are many organisms, such as extremophiles, which live in extreme conditions. For example,…

Q: Does an enzyme release more energy from its substrate than an uncatalyzed reaction would release?

A: Enzymes are proteins which act as a biocatalyst that speed up the rate of a chemical reaction. The…

Q: Can you please draw the mechanism of phosphorylation (all intermidiate steps) and indicate which one…

A:

Q: Why would you expect to see that reactions ofsubstrate cycles involve different enzymes for…

A: An enzyme is defined as a substance that accelerates the rate of a biochemical reaction by lowering…

Q: Is the Activity of Some Enzymes Controlledby Both Allosteric Regulation and CovalentModification?

A: Enzymes catalyze all biochemical reactions. The enzymatic activity is regulated by various means…

Q: Why is the Na/K is also called Na/K ATPase?

A: The process of transport in which ions or molecules of a substance are transported across the cell…

Q: In the experiment of amylase extraction from barely seeds, after the second centrifugation- the…

A: In the experiment of amylase extraction from Barley seed after II centrifugation the Amylase enzyme…

Q: Explain the trade-off that rubisco faces in terms of selectivity and enzymatic speed.

A: Rubisco is the main enzyme that was responsible for the carbon assimilation in photosynthesis and it…

Q: What roles do allosteric regulation and feedback inhibition play in themetabolism of a cell?

A: The functioning of cells is wrapped around the chemical reactions which they can carry out. The rate…

Q: Aside from Avocado seeds, what are the other excellent materials for production of Granular…

A: Here I will provide you some excellent material's example for the production of granular activated…

Q: Why is the TCA cycle considered to be the central pathway in the energy metabolism of a cell?

A: The citric acid cycle serves a number of vital activities in addition to supplying energy from the…

Q: How would a change in enzyme substrate concentration from 4mM to 2mM affect Vmax, Km and Kcat?

A: Enzymes lower the activation energy of a reaction. This is done by binding itself to a substrate…

Q: Describe the experimental evidence which supports the rotational motion of the y- and e-subunits of…

A: Describe the experimental evidence which supports the rotational motion of the gamma and e-subunits…

Q: If in our yeast fermentation rate experiment we have a reaction tube that has no sugar in it (no…

A: If in our yeast fermentation rate experiment  there is  a reaction tube that has no sugar in it (no…

Q: Based on its structure, describe how you would expect the presence of increasing concentrations of…

A: Vitamin D considered as harmones precursors .Vitamin D3 is cholecalciferol and formed…

Q: What would be the effect of the inhibition on other intermediates in the citric acid cycle?

A: Citric acid cycle occurs in the matrix of mitochondria (cytosol in prokaryotes). The net result of…

Q: Suggest a reason that catabolic pathways generally produce NADH and FADH2, whereas anabolic pathways…

A: Catabolic pathway: The pathway releases energy where large macromolecules are broken down into…

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: What is the stoichiometry of the synthesis of (a) ribose 5-phosphate from glucose 6-phosphate…

A: Stoichiometry involves the relationships between the reactants and/or products in the chemical…

Q: Would the TCA cycle happen faster or slower when the cell is also carrying out gluconeogenesis?

A: Introduction: The process of creating glucose from non-carbohydrate molecules is known as…

Q: Describe the lengths of the products of the transketolase reaction when the two substrates are both…

A: Introduction: The reaction catalyzed by transketolase and transaldolase are particular yet…

Q: the energetic consequences of the TCA cycle

A: Each round of the cycle oxidizes one acetate group. For each acetyl group, a AG" of -40kJ/mol is…

Q: From one molecule of glucose, calculate the number of carbon atoms that are lost in Kreb’s cycle.…

A: Glucose  Is it a simple sugar molecules which is use by many organisms as a source of energy giving…

Q: Why is the enzyme-catalyzed introduction of carbon–carbon double bonds into fatty acids called an…

A: Beta-oxidation is a metabolic process by which fatty acids are broken to acetyl-CoA. It occurs by…

Q: Suppose it were possible to label glucose with "C at any position or combi- nation of positions. For…

A: Glucose catabolism is used for the generation of energy under aerobic and anaerobic conditions. In…

Q: What roles do proximity and orientation play in enzymatic catalysis?

A: Enzymes are the catalytic protein which helps to produce the product when the enzyme act on the…

Q: A "pulse-chase" experiment using "C-labeled glucose can be carried out on a yeast extract that is…

A: Ans1 C1 of glucose is equivalent to C3 of pyruvate. C3 of pyruvate is equivalent to C2 of ethanol.…

Q: Concerning enzymatic reactions, how different are the graphic curve of the variation of the speed of…

A: The major function of enzymes is to accelerate the rate of a reaction. The overall schematic can be…

Q: Describe the phosphoenolpyruvate: sugar phosphotransferase system

A: The phosphoenolpyruvate: sugar phosphotransferase system (PTS) is a group of enzymes involved in…

Q: Calculate what the intracellular glucose concentration should be if to transport glucose in active…

A: The movement of ions or molecules up or down the concentration gradient requires a change in free…

Q: Why CaCl2 is used in the plants?

A: Plants are the autotrophs and primary producers in the food chain. Plants leaves contain…

Q: catalyzed by TPI, as illustrated at the beginning of Question #3. Explain why this step is suitable…

A: Glycolysis is a biochemical process that consists of ten biochemical reactions to convert glucose…

Q: What the substrate level phosphorylation reaction in Krebs cycle?

A: Krebs cycle also known as tricarboxylic acid cycle (TCA cycle) is one of the step of cellular…