Which of the following is incorrect about the rate of an enzyme-catalyzed reaction? O a. It does not change when changing [enzyme] Ob. The more enzyme present, the faster the reaction Oc. None; all the other choices are correct Od. It will double, if [enzyme] is doubled
Q: The backbone of fat/oil.* Please choose one correct answer only A. Fatty acids B. Glycerol C.…
A: Fats and oils are biomolecules that are also called as triacyl glycerides which are made up of fatty…
Q: In glycolysis, pyruvate kinase produces what high energy product and what low energy product?
A: Glycolysis is a pathway in which the Glucose (C6) is broken down into a 3 carbon product i.e. 2…
Q: A chemical reaction is more likely to occur spontaneously if A. the products of the reaction are…
A: For a reaction to occur spontaneously, the free energy change i.e delta G should be negative meaning…
Q: Fatty acids are ______ at physiological pH. a. charged b. uncharged c. very cheap d. hydrophobic e.…
A: Fatty acids are important micromolecules which combine together to form lipids in plants, animals…
Q: Which of the following sets corresponds to polar charged amino acids? a. Ser, His, Thr b. Met, Ile,…
A: Amino acids are biomolecules that have an amino group and a carboxyl group attached to the same…
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: See attached, you have a table that is perhaps required for some of the questions. Answer question…
A: The food that we eat contains proteins which need to be broken down and absorbed for its…
Q: discuss using named examples some of the advantages and disadvantages of protein engineering using…
A: Protein engineering refers to the process of altering the amino acid sequence of a protein. The is…
Q: If Km1 > Km2, then the affinity of the enzyme to the substrate with Km1 is: Select one: a. Lower…
A: Enzyme kinetics is a branch of biochemistry that deals with the rate of catalysis of any enzymatic…
Q: What is the isoelectric point of casein? Please choose one correct answer only. A. pH 6.6 B. pH 5.6…
A: Peptides are molecules consisting of 2 to 50 amino acid residues covalently linked together by…
Q: Given a tripeptide Cys-His-Lys, Cys: Pk1 = 1.71; Pk2 = 10.78; PkR = 8.33 His: Pk1 = 1.82; Pk2 =…
A: pK refers to pH at which a particular group is exactly 50% ionized. A tripeptide is a peptide…
Q: 1. 65 years old woman with low physical activity got the excess carbohydrates (about 400 g daily)…
A: Note : Hi ! Thank you for the question. We are authorized to answer three subparts at a time. Since…
Q: What will be the predominant form(s) of the amino acid at pH (i) 1.5; (ii) 3.0; (iii) 4.5; (iv) 6.0;…
A: Amino acids contain many ionizable groups which can present in protonated and deprotonated states.…
Q: Which of the following is incorrect about the "initial velocity" assumption? O a. Product is not…
A: Initial velocity is one of the parameters of enzyme that can be determined by using the formula Vo=…
Q: the process of converting TAG to fatty acid salt and alcohol.* Please choose one correct answer only…
A: Triglycerides or Triacylglycerol (TAG) are lipids comprised of three fatty acids esterified with…
Q: Phospholipids have two fatty acyl chains and can form spherical micells in the presence of water.…
A: Phospholipids are compound lipids that are composed of fatty acids, alcohol, and a phosphate group.…
Q: Which properties of a fatty acyl chain cause the Tm to be lower? 1. shorter hydrocarbon chain length…
A: Fatty acids (FA) comprises of aliphatic chain (can be saturated or unsaturated) with carboxylic acid…
Q: Sphingolipids are found in relative abundance in Bacteria Plant cells Nerve cells Intestinal cells
A: Introduction: Sphingolipids consist of a wide range of complex lipids that contain sphingosine…
Q: Word bank: oxygen, hydrogen, ionic, polar, nonpolar, hydrophilic, hydrophobic, hydrophobic force…
A: Introduction : In addition to being a polar molecule itself, water is also a solvent which is polar.…
Q: In oxidative phosphorylation, how many molecules of ATP are produced per molecule of NADH in the…
A: The electron transport chain and chemiosmosis are two parts of oxidative phosphorylation that are…
Q: QUESTION 14 COVID-19 has been shown to effect hemoglobin's ability to bind and transport oxygen…
A: Hemoglobin is an oxygen transport protein present in the RBCs. Hemoglobin transports oxygen from the…
Q: Answer and draw what is given in the question NEATLY
A: The thermophilic bacteria live at high temperatures like hot springs and hot vents. The Arctic Ocean…
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: How to calculate the percent inhibition of xanthine oxidase enzyme inhibition with a blank…
A: To determine per cent inhibition, we first need to determine the initial velocity of the enzyme in…
Q: do some research on a particular micronutrient (vitamin OR mineral) and discuss its role in the body…
A: Introduction: Vitamin C is a water-soluble vitamin that is also referred to as ascorbic acid. It is…
Q: Which of the following statements is not true about enzymes?*
A: Enzymes are usually composed of proteins and it works as a catalyst to speed up the biochemical…
Q: Why we called the blood urea nitrogen not serum urea, although we called the serum creatinine??
A: A Blood urea and serum creatinine test is two different tests are done to check the kidneys…
Q: Muscle does not provide glucose for the brain during times of starvation. Why? You may choose more…
A: When subjected to a prolonged period of starvation, the level of glucose in the blood falls. This…
Q: The structure shown below is a * H₂C-O HC-0 H₂C-O Fatty acid O Fat O Cholesterol O Carbohydrates MA…
A: Biological lipids are a chemically diverse class of organic compounds that are either insoluble or…
Q: 2. Which enzyme concentration produced the greatest concentration of mono and disaccharides after 10…
A: Benedict's Reagent contains sodium citrate, sodium carbonate, and the pentahydrate of copper(II)…
Q: We have mRNA prepared from human cells but PCR needs DNA. What should we do?
A: A polymerase chain reaction (PCR) is a technique that is used in molecular biology to amplify a…
Q: 3. Below is a polypeptide with an unknown number of amino acids. On the diagram below: a. Circle…
A: Amino acids are building blocks of proteins. Proteins are the polymers of amino acids. A protein is…
Q: Calculate the number of ATPs generated by completely oxidizing one molecule of tripalmitoylglycerol…
A: Tripalmitoylglycerol will be converted to three molecules of palmitic acid and one molecule of…
Q: 3. Explain, in a few sentences, how a cell would make a 16-carbon monounsaturated fatty acid.…
A: There are two questions in the figure and it isn't specified which one has to be answered so, I…
Q: In NOT MORE than 350 words, distinguish between the metabolic concepts presented by the terms: i.…
A: The human body and its systems are regulated with the help of Glucose homeostasis. Glucose…
Q: How many bypassed reactions does gluconeogenesis have? 10 2 3 6 1
A: The synthesis of glucose from the non-carbohydrate precursors is called gluconeogenesis. Major…
Q: Are there any components found between the macromolecule test reagents (Benedict's, Iodine, Sudan…
A:
Q: The condition that lowers the pH of the blood due to starvation is called O A. acidosis OB.…
A: In humans, the body often responds to decreased calorie intake by eating muscle and other tissues…
Q: What is the function of glyceraldehyde 3-phosphate dehydrogenase? catalyzes the transfer of a…
A: Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) is an enzyme involved in glycolysis. It catalyses…
Q: In the 1970s, scientists realized that there might be unforeseendangers and ethical issues with the…
A: An ecosystem is made up of the interactions of various species in a specific geographical area.…
Q: A mixed triglyceride contains: O A. three similar fatty acids esterified with glycerol B. two…
A: Triglycerides are lipids containing three fatty acids each in ester linkage with a glycerol moiety.
Q: 1. Proteoglycans, such as heparan sulfate are defined as having sulfated glycosaminoglycans that are…
A: fggd
Q: (b) Why is selectivity of photodynamic very important? How can it be treatment achieved?
A: Photodynamic treatment involves use of molecules called photosensitizers which gets activated in the…
Q: Match the following changes with the correct responses. (Some answers may be used more than once.…
A: Introduction: Histones are proteins that act as spools for the DNA to wind around. It plays a vital…
Q: An enzyme catalyzes a reaction at a velocity of 20 micromole/min when the concentration of substrate…
A: The name of this metabolic pathway is derived from the citric acid (a tricarboxylic acid, often…
Q: A competitive inhibitor binds to the - active site of theenzyme - a substrate -N termininus of…
A: Introduction: The inhibition of enzyme activity is of two type -irreversible and reversible…
Q: The color of the positive result for Iodine Test.* A. Pinkish B. Orange-Brown C. Blue-Black D.…
A: Iodine test is performed to detect the presence of starch in a solution. When iodine is added to a…
Q: Received information is called a transduced signal because: this process often has many steps of…
A: Cell signalling involves the transmission of an external signal to the cell's interior for proper…
Q: 1q}. 1. Why is cyanmethemoglobin method preferred than other methods? 2. In what…
A: Hi, thank you for posting the question on Bartleby. As per the guidelines we can answer only one…
Q: I just read an abstract of the paper “Disulfide bond-disrupting agents activate the tumor necrosis…
A: The TNF or Tumour Necrosis Factor receptors are Cysteine Rich Domain (CRD) containing Receptors. It…
Step by step
Solved in 2 steps
- Which of the following will happen if the concentration of an enzyme increases for a given substrate?? a. the reaction rate increases similarly b. the rate of the reaction decreases to a point. c. there is no change in the reaction. d. the turnover number decreases at the same rate that the enzyme concentration increases. e. the reaction stops.Consider the following free energy diagram for an uncatalyzed and enzyme-catalyzed reaction. Select all the statements that are true. Without enzyme With enzyme A+B Time AB Oa. The reaction is now spontaneous due to the addition of enzyme b. The rate of the enzyme catalyzed reaction is faster than the uncatalyzed reaction O C. The reaction is exergonic O d. The change in free energy for the reaction is greater in the catalyzed reaction, compared to the uncatalyzed reaction e. The enzyme stabilizes the transition state for the reaction Released Energy pesIf a competitive inhibitor of an enzyme is added to the mixture of the enzyme and its substrate, the inhibitor will: O a. decrease the value of Vmax for the chemical reaction catalyzed by this enzyme O b. decrease the value of KM for the chemical reaction catalyzed by this enzyme O c. increase the value of KM for the chemical reaction catalyzed by this enzyme O d. increase the value of Vmax for the chemical reaction catalyzed by this enzyme
- Which of the following is incorrect? a. Without an enzyme, reaction rate can be increased by increasing the [reactants] b. Enzymes increase reaction rate by bringing the substrates to close proximity A conformational change in an enzyme upon binding of a substrate is called "induced fit" Od. None; all the other choices are correct OC.Which of the following statements is false? a. A reaction may not occur at a detectable rate even though it has a favorable equilibrium. b. After a reaction, the enzyme involved becomes available to catalyze the reaction again. c. For S → P, a catalyst shifts the reaction equilibrium to the right. d. Lowering the temperature of a reaction will lower the reaction rate. e. Substrate binds to an enzyme's active site.Which of the following statements is/are true about enzyme-catalyzed reactions? A. The reaction is faster than the same reaction. B. The free energy change of the reaction is opposite from the reaction in the absence of the enzymes. C. The reaction always goes in the direction toward chemical equilibrium. D. A and B only E. A, B and C
- Consider the following free energy diagram for an uncatalyzed and enzyme-catalyzed reaction. Select all the statements that are true. Without enzyme With enzyme A+B Time AB O a. The rate of the enzyme catalyzed reaction is faster than the uncatalyzed reaction O b. The change in free energy for the reaction is greater in the catalyzed reaction, compared to the uncatalyzed reaction O c. The enzyme stabilizes the transition state for the reaction Od. The reaction is exergonic е. The reaction is now spontaneous due to the addition of enzyme Released EnergyWhat is the expected and logical result that you anticipate after you boil the extracted enzyme? Select one: O a. The boiled enzyme will not affect the reaction at all O b. The boiled enzyme will cause an increase in the reaction speed O c. The boiled enzyme will cause a decrease in the reaction speed d. The reaction will not proceedWhich one of the following statements is true of enzyme catalysts? a. Their catalytic activity is independent of pH. b. They are generally equally active on D and L isomers of a given substrate. c. They can increase the equilibrium constant for a given reaction by a thousand fold or more. d. They can increase the reaction rate for a given reaction by a thousand fold or more. e. To be effective, they must be present at the same concentration as their substrate.
- Which of the following is TRUE concerning the induced fit model of enzyme catalysis? * (One correct answer only) A. The active site can be influenced by molecules binding elsewhere on an enzyme B. The initial binding of enzyme and substrate is the most tightly bound conformation C. The induced fit must occur prior to the initial binding of enzyme and substrate in order for the reaction to proceed D. The binding of enzyme and substrate is weakest in the transition stateIn competitive inhibition, increasing concentrations of the inhibitor will have the following effect on the kinetics of the enzyme: A. Km will decrease. B. Vmax will stay the same. C. The reaction will cease because the inhibitor binds irreversibly. D. Km / Vmax will stay the same.Sketch and label a plot showing the enzyme's initial velocity relative to pH over the pH range 4 - 9 for the enzyme-catalyzed reaction under these two conditions: A. The substrate concentration is very, very high. B. The substrate concentration is less than the enzyme's Km.