Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Question
Chapter 6.3, Problem 2CC
Summary Introduction
To determine:
Whether “glutamic acid + ammonia + ATP” or “glutamine + ATP +Pi” has more free energy.
Concept introduction:
Gibbs free energy is the energy present in the system that can perform work under the condition of uniform temperature and pressure. It is denoted by G.
In a
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Students have asked these similar questions
In the reaction ATP + glucose → ADP + glucose-6-phosphate, ΔG° is -16.7 kJ/mol. Assume that both ATP and ADP have a concentration of 1 M and T = 25°C. What ratio of glucose-6- phosphate to glucose would allow the reverse reaction to occur?
Twenty-three milligrams of glucose were eaten by the bacteria Sanacoccus pumasareus. Calculate the hypothetical
amount of ATP your patient can generate under aerobic respiration with this amount of glucose. (Note: Glucose
MW-180.16 g/mole; 1 mole= 6.02 x 1023 molecules (Avogadro's number)).
2.8 x 10^24 ATPs
02.9 x 10^21 ATPs
028 x 10-21 ATP5
029 x 10 24 ATPS
Lacks information, cannot be determined
For each of the four possibilities listed below (a through d), only one answer is correct and the others are false. Identify the correct statement and explain why the others are false. In your answer, write CORRECT next to the statement that you think is true, and ONLY for the ones that you think are false, explain what is wrong with the statement .
When glucose reacts with ATP to form glucose-6-phosphate (as shown on the figure below):
1. The synthesis of glucose-6-phosphate is exergonic
2. ADP is at a higher energy level than ATP
3. Glucose-6-phosphate is at a higher energy level than glucose
4. Because ATP donates a phosphate to glucose, this is not a coupled reaction
Chapter 6 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 6.1 - MAKE CONNECTIONS How does the second law of...Ch. 6.1 - Describe the forms of energy found in an apple as...Ch. 6.2 - Cellular respiration uses glucose and oxygen,...Ch. 6.2 - Prob. 2CCCh. 6.2 - Prob. 3CCCh. 6.3 - How does ATP typically transfer energy from...Ch. 6.3 - Prob. 2CCCh. 6.3 - MAKE CONNECTIONS Does Figure 6.10a show passive or...Ch. 6.4 - Many spontaneous reactions occur very slowly. Why...Ch. 6.4 - Why do enzymes act only on very specific...
Ch. 6.4 - WHAT IF? Malonate is an inhibitor of the enzyme...Ch. 6.5 - How do an activator and an inhibitor have...Ch. 6 - Choose the pair of terms that correctly completes...Ch. 6 - Prob. 2TYUCh. 6 - Which of the following metabolic processes can...Ch. 6 - If an enzyme in solution is saturated with...Ch. 6 - Some bacteria are metabolically active in hot...Ch. 6 - If an enzyme is added to a solution where its...Ch. 6 - DRAW IT Using a series of arrows, draw the...Ch. 6 - SCIENTIFIC INQUIRY DRAW IT A researcher has...Ch. 6 - SCIENCE, TECHNOLOGY, AND SOCIETY Organophosphates...Ch. 6 - FOCUS ON EVOLUTION A recent revival of the...Ch. 6 - FOCUS ON ENERGY AND MATTER Life requires energy....Ch. 6 - SYNTHESIZE YOUR KNOWLEDGE Explain what is...
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Similar questions
- The graph shows how the free‑energy change for the hydrolysis of ATP varies as a function of Mg2+ concentration. Note that pMg = –log[Mg2+]. What does the graph tell you about the relationship between Mg2+ concentration and ATP hydrolysis? What is the mechanism that explains the relationship between Mg2+ concentration and ATP hydrolysis?arrow_forwardYou know that the free energy of ATP hydrolysis depends on the ATP/ADP ratio. Given that under standard conditions DGo = -30.5 kJ/mol, what should be DG of ATP hydrolysis under normal intracellular concentrations? [ATP] = 2.3 mM, [ADP] = 0.25 mM, [Pi] = 1.65 mM What is the energy of ATP hydrolysis in a cell that is ATP-depleted? [ATP] = 0.1 mM, [ADP] = 2.8 mM, [Pi] = 1.65 mMarrow_forwardThe hydrolysis of the phosphoester bond of ATP releases a large amount of free energy. True or false?arrow_forward
- The oxidation of 1 mol of glucose supplies enough metabolic energy to form 36 mol of ATP. Oxidation of 1 mol of a typical dietary fat like tristearin (C57H116O6) yields enough energy toform 458 mol of ATP. How many molecules of ATP can form per gram of (a) glucose; (b) tristearin?arrow_forwardGlycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis are thermodynamically unfavorable, nonspontaneous, but proceed when they are coupled with other reactions. A. P; + glucose → glucose-6-phosphate + H₂O AG = 3.30 kcal/mol B. P; + fructose-6-phosphate - fructose-1,6-bisphosphate + H₂O C. ATP + H₂O → ADP + P₁ Which of the reactions are unfavorable? A B с AG = -7.30 kcal/mol Which of the reactions can be coupled so that the overall reaction is favorable? A and B A and C B and C Incorrect AG = 3.90 kcal/molarrow_forwardConvert the following reactions into "Metabolic Engineering" notation: C6H1206 + 2 H20 → 2 C2H60 + 2 HCO3 + 2 H* b. ATP + glucose > glucose-6-phosphate + ADP 3.arrow_forward
- A simple enzyme reaction can be described by the equation e + s ↔ es ↔ e + p, where e is the enzyme, s the substrate, p the product, and es the enzyme– substrate complex.Write a corresponding equation describing the workings of a transporter (T) that mediates the transport of a solute (s) down its concentration gradient.arrow_forwardThe parietal cells of the stomach lining contain membrane “pumps” that transport hydrogen ions from the cytosol (pH 7.0) into the stomach,contributing to the acidity of gastric juice (pH 1.0). Calculate the free energy required to transport 1 mol of hydrogen ions through these pumps. Assume a temperature of 37 °C.arrow_forwardA 75 kg person doing light work requires about 3000 kcal of food energy perday, 40% of which is actually used by the body’s cells. (The other 60% is lostas heat and in waste products.) Before being used by the cells, effectively allof this energy is stored in ATP, which is then cleaved into ADP and PO3−2 , with the release of 12.5 kcal per mole of ATP.(a) How many moles of ATP are turned over per day in this fashion? Whatmass of ATP does this correspond to? (The molecular weight of ATP is507 g/mol.)(b) The body actually contains approximately 5 g ATP. Estimate the averagerecycle time for an ATP molecule. You see that it is much more efficientto reuse ADP rather than to synthesize it de novo (from scratch).arrow_forward
- This is a plot under standard conditions of free energy corresponding to a chemical reaction of A+B to C+D. What will happen if only C+D are present under standard temperature and pressure? Please explain why.arrow_forwardTwenty-three milligrams of glucose were eaten by the bacteria Sanacoccus pumasareus. Calculate the hypothetical amount of ATP your patient can generate under fermentative metabolism with this amount of glucose. (Note: Glucose MW-180.16 g/mole; 1 mole= 6.02 x 1023 molecules (Avogadro's number)). O2.8 x 10^21 ATPs 01.5 x 10 20 ATPs 01.5 x 10^21 ATPs O2.8 x 10^20 ATPs O No ATP produced since it's fermentation O Lacks information, cannot be determined Nexte Previousarrow_forwardA galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2+ 2+ Sn(aq) +Ba(s) → Sn (s) + Ba** (aq) 2+ 2+ Suppose the cell is prepared with 7.71 M Sn in one half-cell and 5.89 MBa in the other. Calculate the cell voltage under these conditions. Round your answer to 3 significant digits.arrow_forward
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