choose the correct answer:  1- Within the cell, many chemical reactions that, by themselves, require energy input (have a positive free-energy change) can occur because the reactions:  A) May be coupled to the hydrolysis of ATP. B) Are catalyzed by enzymes C) Are aided by various metal ions that act as catalysts D) Take place when the cells are at unusually high temperatures> E) Take place very slowly. 2- ATP synthesis is powered by: A) proton gradient. B) GTP hydrolysis. C) cAMP. D)Coenzyme motive force.

Q: State whether the reaction below is synthesis, decomposition or exchange reaction a) a phosphate is…

A: The chemical reaction can be of many types such as synthesis, decomposition, displacement, and…

Q: One of the functions of metabolism is to provide the energy needed to all the processes required by…

A:

Q: Establish a correspondence between the items indicated by a number and a letter: features of…

A: Enzymes are biochemical catalysts that play a major role in speeding up a biochemical reaction…

Q: 15.12) Determine whether each of the following metabolic processes occurs in the cytoplasm (outside…

A: Respiration is the process of the breakdown of food components inside the cell to synthesize ATP.…

Q: The following questions are based on Figure 6.2 В C A E Prograss af the Reaction Free Energy

A: Answer :: 4) Graph is showing the exergonic reaction, in this graph energy of activation is more in…

Q: Choose the best answer The active site of an enzyme is the place where the following happens:…

A: A catalyst is a component that speeds up a chemical reaction without really being a reactant.…

Q: There may be more than correct answer for each Which of the following statements regarding enzymes…

A: Enzymes are the biocatalyst  which increases the rate of chemical reaction without  itself being…

Q: Consider a hypothetical metabolic pathway involving four enzymes to convert molecule A into molecule…

A: Allosteric enzymes are enzymes whose catalytic activity is regulated by an effector molecule that…

Q: Choose the correct answer:  1- How does ETC lead to ATP synthesis: A) Hydrogen ions diffuse from…

A: The electron transport chain occurs in the mitochondria and this process is responsible for the…

Q: Which of the following is true about enzymes.  a) Enzymes are catalysts and they increase the rate…

A: Metabolism includes all the chemical reactions occurring in the body that are involved in…

Q: During cellular respiration, which of the following diffuses through ATP synthase? A)Phosphates…

A: According to the question, during Cellular respiration, which of the following diffuses through ATP…

Q: Which enzyme would have the greatest catalytic efficiency? a) Km 20 nM; kcat 50 s-1 b) Km 0.04 uM;…

A: [S] is Substrate concentration  V is velocity of reaction  Kcat - Catalytic constant(Turnover…

Q: ATP hydrolysis is _______ because ________. ATP + H2O ADP + Pi a) Exergonic; Its hydrolysis…

A: ATP is the chemical link between catabolism and anabolism. It is the energy currency of the living…

Q: Therefore the role of the enzyme is to circle one: (regulate / speed up /inhibit) a reaction by…

A: Nucleic acid :  It was first discovered by " Friedrich Miescher"  from the pus cells . It is called…

Q: 1. Shown below is a metabolic pathway: Es E4, E F > E1 E3 A - B C - D E2 E6 R E7 Es Suppose we have…

A: Note : Hi! Thank you for the question. We are authorized to answer three subparts at a time. Since…

Q: A competitive inhibitor diminishes the rate of catalysis: A) By reducing the proportion of enzyme…

A: The enzymes are biological catalysts that increases the rate of biological reactions. The enzymatic…

Q: Galactose 1-phosphate + UDP-glucose → UDP-galactose + glucose 1-phosphate Which pairing correctly…

A: Glycolysis is the metabolic pathway through which one 6 carbon glucose is converted into two 3…

Q: For each of the four possibilities listed below (a through d), only one answer is correct and the…

A: The first step in glycolysis is the conversion of D-glucose into glucose-6-phosphate. The enzyme…

Q: Which of the following statements about isozymes is correct?   (Select all that apply.)   (a)…

A: ANSWER) Isozymes are different forms of the same enzyme that catalyze the same chemical reaction but…

Q: c) As oxygen steals 2 electrons from protein complex IV, a chemical (REDOX) reaction starts. Write…

A: The complex IV in the electron transport chain is cytochrome C oxidase. The purpose of this…

Q: 6) a) Why is ATP a "high-energy" compound? (think the ATP structure) b) What are the metabolic roles…

A: ATP is composed of adenine (Base), ribose, and three phosphates. Nicotinamide adenine dinucleotide…

Q: Based on the kinetic constants below, which enzyme will most efficiently catalyze conversion of the…

A: Enzymes are protein molecules that increase the rate of reaction by decreasing the rate of reaction.…

Q: What would be the effect on ATP production during chemiosmosis and oxidative phorphorylation, if the…

A: The pH slope across the central mitochondrial sheath is a fault-finding determinant when ATP results…

Q: a) Describe the three irreversible reactions of the Citric Acid Cycle. Ensure to indicate their…

A: Krebs cycle or tricarboxylic acid (TCA) cycle in aerobic organisms is the final stage of catabolism…

Q: Which of the following reactions is catalyzed directly by the enzyme pyrophosphate ? a) Hydrolysis…

A: Pyrophosphatase, also known as diphosphatase enzymes, belong to class acid anhydride hydrolases that…

Q: Molecule A is the substrate for the enzyme shown below. What process is diagrammed in this figure?…

A: B) allosteric inhibition is the correct answer.

Q: List ALL of the substrate-level phosphorylation steps in cellular respiration and the enzymes that…

A: Substrate level phosphorylation is the metabolic  process by which nucleotide tri phosphate ATP or…

Q: Draw a schematic diagram on Glycolysis in an: a.) aerobic and b.) anaerobic conditions Highlights…

A: Cellular respiration is a catabolic process.  It includes glycolysis, which is a common pathway for…

Q: Which of the following statements about enzymes are true?  Choose all that apply. Group of answer…

A: The enzymes are biological catalysts that enhances the rates of biological enzymes. Most enzymes are…

Q: 5. a) The cell creates molecules of NADH and FADH2 to use in the electron transport chain as they…

A: Mitochondria are defined as membrane-bound cell organelles that will generate or produce most of the…

Q: (a) An experiment can be designed to test the effect of different temperature levels on the…

A: The independent variable is the parameter which we expect to affect the dependent variable. The…

Q: A certain metabolic reaction takes the form A → B. Its standard free energy change is 7.5 kJ ·…

A: Gibbs free energy change (∆G) us the change in free energy between products and reactants in a…

Q: Which of the following statement regarding enzymes is false?

A: The majority of vital biological processes are based on how enzymes work. The linear amino acid…

Q: The creation of the H+ gradient in the mitochondria that powers ATP synthase is an example of:

A: EXPLANATION Diffusion is the process of movement of molecules under a concentration gradient.…

Q: QUESTION 17 Cellular respiration is composed of several different stages. a) Name the different…

A: Cellular respiration has four different stages. These involves Glycolysis, Pyruvate oxidation, TCA…

Q: a.) Explain how negative feedback is used to regulate a metabolic pathway.    b.) Explain how…

A: Feedback loops are organic mechanisms whereby homeostasis is kept up with. This happens when the…

Q: The activation of allosteric enzymes leads to: a) dissociation of protomers upon breaking weak…

A: Allostery refers to process whereby a binding event at one site of a biological macromolecule or…

Q: Draw a Lineweaver-Burke plot with two lines, one representing an uninhibited enzyme and another…

A: Competitive inhibition of Lineweaver–Burk plot increases the slope of the line and alters the…

Q: As protons (H+) pass through the mitochondria inner membrane…   Question 10 options:   a)…

A: Mitochondria: Mitochondria are organelles found in eukaryotic cells that are responsible for…

Q: The diagram below describes: A) How the pumping of sodium ions out of the cell can power the…

A: The biological membrane that surrounds a living cell is called the cell membrane. The structure of…

Q: The oxidation of sugar molecules by the cell takes place according to the general reaction C6H12O6…

A: 1. FalseNot all chemical energy to be harvested in a useful form to be used for metabolic processes.…

Q: Which of the following is true under the following conditions: an enzyme displaying Michaelis-Menten…

A: Enzymes are protein molecules that increase the rate of reaction by million times. Enzymes do not…

Q: a) Compare anabolism and catabolism for energy input, monomers and polymers position as reactants or…

A: Several metabolic reactions occur in the living organisms, which makes survival possible. Metabolic…

Q: Assume a cell undergoes the Aerobic Respiration option of catabolism. Calculate the number of ATP…

A: Aerobic respiration is a type of respiration process in which oxygen is used for the production of…

Q: Photosynthesis and aerobic cellular respiration both rely on electron transport chains to generate…

A: Oxidative phosphorylation is made up of two closely connected components: the electron transport…

Q: Which of the following is NOT a reason that ATP is generally used as the activated carrier of…

A: Introduction :- Adenosine triphosphate (ATP) is the source of energy at the cellular level. ATP is a…

Q: Can you answer all the parts to following question, true or false:  Q27:  A: Because enzymes…

A: -An enzyme can be described as a biological catalyst that acts on biochemical reactions of the body.…

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.