Typical activity curves of enzymes that are analyzed in the test tube, like the one presented below, flatten out with time. Provide two possible reasons why this is observed. Must be less than 50 words total

Q: Identify the following items as being characteristic of either cholesterol, steroid hormones, or…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: Describe how temperature affects the rate of an enzymatically catalyzed reaction.

A: All proteins are composed of monomers called amino acids. The amino acids form particular bonds with…

Q: Which of the following enzymes are inhibited by corticosteroids? a) Lipoxygenase only b) COX-1 only…

A: Corticosteroids are a class of steroid hormones that are involved in a variety of physiological…

Q: Could you help me with part F to H of the mechanism?: Using curved arrows, show the mechanism of…

A: Arrow pushing mechanism tells us the mechanism by which reactions take place. Each curved RED arrow…

Q: If the chyme did not contain sodium, the absorption of which of the following would be impacted? O…

A: In animals, ingested food is stored in the stomach. Partial digestion of ingested food via gastric…

Q: Which of the following reactions in glycolysis requires ATP as a substrate? Hexokinase Both…

A: Glycolysis is a metabolic pathway that breaks down glucose into pyruvate, generating ATP and NADH in…

Q: egg white and milk are used as an antidote for heavy metal poisoning. explain in 1-3 sentences

A: Egg white has albumin protein that act as chelator of heavy metals. That traps the metal ions within…

Q: For each step of the citric acid cycle, name the enzyme responsible for the chemical transformation…

A: The citric acid cycle, also known as the Krebs cycle or the tricarboxylic acid (TCA) cycle, is a…

Q: A PCR reaction was performed to amplify the XULA4 gene, which is bp 524-6,480 on a plasmid that is…

A: A plasmid is a circular DNA. Restriction enzymes cut DNA at specific sites called the restriction…

Q: Which enzyme is used for both the synthesis and breakdown of acetoacetate? thiolase O HMG-CoA…

A: Proteins that catalyse chemical reactions in living organisms are known as enzymes. They function as…

Q: 14.23) All forms of life can have their cells invaded by viruses. When viruses take over plant or…

A: Viruses are small infectious agents that can only replicate inside living host cells. They have a…

Q: Draw the Fischer projection for L-glucose. Drag the appropriate labels to their respective targets.…

A: Fischer projection is a way of representing the three-dimensional structure of a molecule in a…

Q: Describe the tertiary (3º) structure of proteins and the different types of intermolecular forces…

A: As per the central dogma of molecular biology, DNA contains the information needed to synthesize…

Q: Describe the unique fate of organic carbon and phosphorus during sequential anaerobic-aerobic…

A: Sequential anaerobic-aerobic cycling refers to a wastewater treatment process that involves…

Q: N. Looking ahead (while there is still time), here is the "Oxyhemoglobin dissociation curve." It…

A: % Saturation of hemoglobin by O2 indicates the percentage of all the hemoglobin's O2 binding sites…

Q: 13.13) Write the names (using the three letter abbreviation method) of all of the tripeptides that…

A: Tripeptide is the macromolecule formed from three amino acids. Amino acids are joined by peptide…

Q: The production of glucose by the liver is facilitated by elevated amounts of the molecule NADH

A: Gluconeogenesis, which is the process of producing glucose from non-carbohydrate sources like amino…

Q: If the energy of the ES complex is 15 kJ/mol lower than the energy of the E+ S, the value of AG'e'…

A: Energy ES complex is 15 kJ/mol lower than the energy of the E + S∆Ge= 20KJ/mol∆Gu= 90KJ/molR = 8.134…

Q: A brain scan uses the radioisotope oxygen-15. The recommended dosage is 60 mCi. A supply of 250 mCi…

A: mCi is a measurement of radioactivity used in radio pharmaceuticals. The full form of mCi id…

Q: a) Which of these contration of all substrates and enzymesed state of a biological system? a) There…

A: The term "standard conditions" in biology typically refers to a set of reference conditions that are…

Q: Below is a representation of glutamic acid with three incomplete functional groups in dashed boxes…

A: Amino acids have both carboxylic acid group and a amino a group along with a side chain. Hence, at…

Q: How many of each of these molecules are produced in the complete beta-oxidation of one 10-carbon…

A: Beta-oxidation is the repeated cyclic breakdown of fatty acid molecules to acetyl CoA and/or…

Q: -fatty acid synthesis RNA -> DNA Necessary to make RNA nucleotide G3P F6P &

A: Glucose-6-phosphate is a sugar molecule that is an important intermediate in several metabolic…

Q: Explain the difference between ketogenesis and ketoacidosis.

A: Acetyl CoA produced from fatty acid oxidation in the hepatic cells has two possible fates: enter…

Q: The activity of the mammalian PDH complex is observed to decrease in mitochondria in the presence of…

A: The mammalian pyruvate dehydrogenase is the complex enzyme that required to convert pyruvate to…

Q: i) Write down the equation derived from your Excel generated standard curve , figure legend and…

A: Standard curve is plotted to find the unknown concentration of a sample. The standard cure is always…

Q: What is the names of these lipids?

A: Lipids are a chemically diverse group of biomolecules that have two things in common: low…

Q: Classify each structure as D or L.

A: Molecules with chiral carbons can exits in different stereoisomeric forms, like the L and D…

Q: Consider the fatty acid arachidonic acid, which has the structure shown below. Which of the…

A: Arachidonic acid is a 20-carbon fatty acid. It has 4 double bonds in its structure in the cis…

Q: Although the first two carbons of fructose and glucose are identical in structure to DHAP and GADP…

A: Glycolysis is a metabolic pathway that converts glucose into pyruvate, which can then be used by the…

Q: 9. Draw the structure of the product that would form by the action of a PLP-requiring amino acid…

A: Amino acid racemase is an enzyme that catalyzes the conversion of one enantiomer (chiral isomer) of…

Q: 1.32) Identify the following as properties of either glycogen, amylopectin, both glycogen and…

A: A polysaccharide is a large molecule composed of many monosaccharide units linked together by…

Q: 13. Identify the oxidizing agent in the following reaction: PEP + NAD → Pyruvate + NADH + H+ Oxygen…

A: An oxidation reaction is where the atom/molecule loses electrons. A reduction reaction is where the…

Q: 1. Which of the following is NOT innervated by the parasympathetic nervous system? a. salivary…

A: The nervous system is a collection of specialised cells that control movement, thought, sensation…

Q: Carbohydrate Reactions What are some of the typical reactions? Sodium Borohydride Reduction of…

A: Chemically carbohydrates are polyhydroxy aldehydes or ketones. They have the general formula :…

Q: 8. What is the name of the reaction (below)? 9. Is reaction below an oxidation reaction or a…

A: Pyruvate is small organic molecule, the key intermediate in the metabolic pathway known as…

Q: To visualize the spatial arrangement of amino acid residues in an a-helix, it is helpful to imagine…

A: Alpha helix is a secondary structure of protein. The alpha-helix can be right-handed or left-handed.…

Q: In the pathway for degradation of BCAAs, which reaction takes place prior to the action of the BCKDC…

A: There are three branched chain amino acids. They are valine, leucine and isoleucine. They are called…

Q: Which of the following is not true about enzymes?

A: The question concerns enzymes and their characteristics. Biochemical catalysts known as enzymes are…

Q: The three irriversible reactions in glycosis is :  Hexoknase, PFK-1 and Pryvate kinases. they are…

A: Glycolysis is the cellular metabolic pathway that converts glucose into pyruvate. The glycolytic…

Q: You are given unlabeled vials containing samples of a carbohydrate, a lipid, and a protein. Design…

A: Reducing sugars are carbohydrates which when reacts swith Benedict's solution and heating for a few…

Q: Indicate whether each of the following monosaccharides would be classified as an aldose, ketose,…

A: Monosaccharides are the simplest form of carbohydrates, also known as simple sugars. They are made…

Q: State the steps of beta-oxidation pathway.  Please make sure to state all the enzymes and co-factors…

A: Beta-oxidation is a metabolic pathway that plays a fundamental role in the breakdown of fatty acids…

Q: Role of the triacyl glycerol cycle. Summarize the cycle referring to the figure. What role does the…

A: Triacyclglycerol is a glycerol molecule esterified at its three hydroxyl groups by 3 fatty acid…

Q: 6. Describe the active site of the enzyme, which is the place where the reaction occurs. In your…

A: The active site is the region of an enzyme where substrate molecules bind and undergo a chemical…

Q: Why is Vit.C important for our skin?

A: Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that plays a crucial role in…

Q: If the TCA cycle is over-stimulated, too much of _____ will be produced.     pyruvate…

A: The foods that we consume helps in providing us with the needed energy. Cellular respiration is that…

Q: Can you help me with this question? Compare and contrast “fat” (triglycerides) and fatty acids.

A: Both fat and fatty acids are classified as lipids. Lipids are a chemically diverse group of…

Q: A series of reactions that pass electrons from NADH and FADH₂ to molecular oxygen to produce H₂O and…

A: The conversion of nutrients into energy and cellular building blocks is made possible by biochemical…

Q: Objective: The enzyme pyruvate carboxylase is discovered in a bacterium that was thought not to…

A: Pyruvate carboxylase (PYC) is the enzyme that catalyzes the transfer of a carboxyl group to pyruvate…