ATP hydrolysis and the endergonic reaction that is coupled to it are usually represented as two...
ATP hydrolysis and the endergonic reaction that is coupled to it are usually represented as two separate equations. Explain why, if these where indeed two separate reactions, ATP hydrolysis will not be able to power the endergonic reaction?
Does the answer have anything to do with the fact that ATP, although exergonic, is an incredibly stable molecule and will react slowly without the presence of an enzyme?
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ATP hydrolysis and the endergonic reaction that is coupled to it
are usually represented as two...
The reaction for the hydrolysis of ATP is: ATP rightarrow ADP + Pi + 7.3kcal Is...
The reaction for the hydrolysis of ATP is: ATP rightarrow ADP + Pi + 7.3kcal Is this an endergonic or exergonic reaction and why? Draw a reaction energy diagram for this reaction (do not need to include specific numbers) and label: X and Y axis, reactants, products, transition state, energy of activation. Draw an additional curve on your diagram above (use a dotted line or another color to distinguish) to indicate how the progress of reaction would be affected by...
2. The hydrolysis of ATP is the cell’s most commonly used exergonic reaction when performing energy...
2. The hydrolysis of ATP is the cell’s most commonly used exergonic reaction when performing energy coupling. Explain energy coupling, why it is necessary, and how the hydrolysis of ATP fits into the process. Use vocabulary words such as “endergonic,” “exergonic,” “spontaneous,” and “nonspontaneous.” (8 points) BIOLOGY CELLULAR RESPIRATION/PHOTOSYNTHESIS Please answer in one-two paragraphs
QUESTION 1 AGº for the hydrolysis of ATP is considered to be: O highly endergonic O...
QUESTION 1 AGº for the hydrolysis of ATP is considered to be: O highly endergonic O highly exergonic O slightly endergonic O slightly exergonic QUESTION 2 Which of the following most closely approximates a second messenger? An odorant receptor on the surface of a mouse olfactory epithelium cell that undergoes a o conformational change upon binding of metabolites (breakdown products) of thyroid hormones, activating an intracellular G-protein. Ca=ions flowing into the cytoplasm and there binding to a protein on the...
1.Energy stored in the covalent bonds of a molecule of C6H12O6 would best be described as?...
1.Energy stored in the covalent bonds of a molecule of C6H12O6 would best be described as? Why wouldn't it be kinetic energy? 2.Reaction (1) is A + B <--> C + H2O. It is endergonic with a ΔG = 6.3 kcal/mol Reaction (2) is ATP + H2O <--> ADP + Pi . It is exergonic with a ΔG = -7.3 kcal/mol If these two reactions are coupled, what is the overall free energy for the reaction? 3.For enzyme catalzyed reactions, what...
ATP -> ADP is often coupled with ________ reactions, whereas ADP -> ATP is often coupled...
ATP -> ADP is often coupled with ________ reactions, whereas
ADP -> ATP is often coupled with ________ reactions.
Select all that apply. Which of the molecules shown below has
the highest potential energy in its bonds? Select only ONE answer
choice
You run a research laboratory at ASU that researches diseases
related to cellular respiration. You’re particularly interested in
a disease where patients present as very lethargic because they
can’t produce enough ATP. In this particular case, it appears...
ATP donates energy through (select all that apply) A. Phosphate ester bond hydrolysis B. Coupling with...
ATP donates energy through (select all that apply) A. Phosphate ester bond hydrolysis B. Coupling with an endergonic reaction C. Phospho Anhydride bond hydrolysis D. Enzyme-mediated reactions E. none is correct Some anoxygenic photosynthetic bacteria are able to use _______ as an electron source. A. light B. CO2 C. H2S D. H2O E. Nitrate __________pathogens only cause diseases under certain circumstances, e.g. in immune compromised hosts
1. 2. 3. Select the true statement regarding thermodynamics. C) The △G" of a reaction is...
1.
2.
3.
Select the true statement regarding thermodynamics. C) The △G" of a reaction is zero at equilibrium. 0 The standard state for solutes is 1.00 M The standard state for gases is 1 Torr. The ΔG of a reaction is independent of the equilibrium constant A reaction proceeds via the following equation A solution of A and B are allowed to react unti the reaction stops. The final concentrations of the reactants and products are 25 mM A...
2. How is ATP used in most cell processes? a. It binds to a substrate and...
2. How is ATP used in most cell processes? a. It binds to a substrate and provides energy when the phosphate group is released. b. indirectly, by providing electrons to an acceptor c. Hydrolysis of ATP is coupled to an endergonic reaction. d. It increases the efficiency of some key enzymes. e. none of the above 2. How is ATP used in most cell processes? a. It binds to a substrate and provides energy when the phosphate group is released....
1. What are the different sources of energy available to living organisms? 2. How do the...
1. What are the different sources of energy available to living organisms? 2. How do the acquisition and the use of energy by living organisms work according to the laws of thermodynamics? 3. Explain the energy use in the following reactions: endergonic/exergonic. 4. What is metabolism? How are chemical reactions related to metabolism? Why is energy needed to run a metabolism? What are coupled reactions? 5. Draw a picture of ATP. Why is this molecule so important for cells? How...
A3. The synthesis of sucrose from glucose and fructose is facilitated through the use of ATP...
A3. The synthesis of sucrose from glucose and fructose is facilitated through the use of ATP as an energy source. The reaction equations for the process, with their Gibbs energy signs, are shown below. glucose + fructose — sucrose ATP + H20 = ADP + Pi AG = Positive AG = Negative glucose + fructose + ATP> sucrose + ADP + Pi Overall AG = Negative Answer A, B, and C. A. The two reactions shown above the line are...
The reaction for the hydrolysis of ATP is: ATP rightarrow ADP + Pi + 7.3kcal Is this an endergonic or exergonic reaction and why? Draw a reaction energy diagram for this reaction (do not need to include specific numbers) and label: X and Y axis, reactants, products, transition state, energy of activation. Draw an additional curve on your diagram above (use a dotted line or another color to distinguish) to indicate how the progress of reaction would be affected by...
QUESTION 1 AGº for the hydrolysis of ATP is considered to be: O highly endergonic O highly exergonic O slightly endergonic O slightly exergonic QUESTION 2 Which of the following most closely approximates a second messenger? An odorant receptor on the surface of a mouse olfactory epithelium cell that undergoes a o conformational change upon binding of metabolites (breakdown products) of thyroid hormones, activating an intracellular G-protein. Ca=ions flowing into the cytoplasm and there binding to a protein on the...
ATP -> ADP is often coupled with ________ reactions, whereas
ADP -> ATP is often coupled with ________ reactions.
Select all that apply. Which of the molecules shown below has
the highest potential energy in its bonds? Select only ONE answer
choice
You run a research laboratory at ASU that researches diseases
related to cellular respiration. You’re particularly interested in
a disease where patients present as very lethargic because they
can’t produce enough ATP. In this particular case, it appears...
1.
2.
3.
Select the true statement regarding thermodynamics. C) The △G" of a reaction is zero at equilibrium. 0 The standard state for solutes is 1.00 M The standard state for gases is 1 Torr. The ΔG of a reaction is independent of the equilibrium constant A reaction proceeds via the following equation A solution of A and B are allowed to react unti the reaction stops. The final concentrations of the reactants and products are 25 mM A...
1. What are the different sources of energy available to living organisms? 2. How do the acquisition and the use of energy by living organisms work according to the laws of thermodynamics? 3. Explain the energy use in the following reactions: endergonic/exergonic. 4. What is metabolism? How are chemical reactions related to metabolism? Why is energy needed to run a metabolism? What are coupled reactions? 5. Draw a picture of ATP. Why is this molecule so important for cells? How...
A3. The synthesis of sucrose from glucose and fructose is facilitated through the use of ATP as an energy source. The reaction equations for the process, with their Gibbs energy signs, are shown below. glucose + fructose — sucrose ATP + H20 = ADP + Pi AG = Positive AG = Negative glucose + fructose + ATP> sucrose + ADP + Pi Overall AG = Negative Answer A, B, and C. A. The two reactions shown above the line are...
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