BIOCHEM-ACHIEVE(FIRST DAY DISCOUNTED)
9th Edition
ISBN: 2818000069358
Author: BERG
Publisher: MAC HIGHER
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Chapter 20, Problem 18P
Interpretation Introduction
Interpretation:
The reason as to why the maintenance of the large concentration of
Concept introduction:
Photosynthesis is a reaction in which carbon dioxide and water combines together in the presence of sunlight to form glucose and oxygen. The photosynthetic process in which carbon is eliminated from
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Fo-F1 ATPase. The energy for ATP synthesis from ADP and Pi is provided by the downhill transport of protons through the rotary FoF1 ATP synthase (lecture 22). The enzyme has 3 a-b and 12 ‘c’ subunits. The mitochondrion maintains Df=180 mV (negative inside), pHin = 8, pHout=7, [Pi] = 3 mM and ADP is present as well.
How much energy is available (from the proton electrochemical gradient) for ATP synthesis under these conditions (in kJ/mol)?
What [ATP]/[ADP] ratio will be established at steady-state under these conditions?
What would be the [ATP]/[ADP] ratio if the enzyme had only 9 ‘c’ subunits? Remember that full revolution of the crank (gamma subunit) produces 3 ATP.
Fo-F1 ATPase. The energy for ATP synthesis from ADP and Pi is provided by the downhill transport of protons through the rotary FoF1 ATP synthase . The enzyme has 3 alpha-beta and 12 ‘c’ subunits. The mitochondrion maintains change in membrane potential=180 mV (negative inside), pHin = 8, pHout=7, [Pi] = 3 mM and ADP is present as well.
. What [ATP]/[ADP] ratio will be established at steady-state under these conditions?
What would be the [ATP]/[ADP] ratio if the enzyme had only 9 ‘c’ subunits? full revolution of the crank (gamma subunit) produces 3 ATP.
Transport. Provided below is an abstracted equation describing an active cell membrane
transport from outside the cell to the cytoplasm, involving a membrane carrier (Cmemb), a
substrate (Sin) (growth factor etc.) to be carried and released (Sout) into the cytoplasm.
a) What kind of feedback mechanism is restricting this process?
b) Construct a Forrester Diagram
Membrane Transport Carrier, C:C, +S.
memb
k₁
k_₁
C memb
memb
+ S
out
Solid Lines. There are two applications in the construction of Forrester diagrams where
solid lines can be used to connect state variables. Please name them:
a)
b)
Chapter 20 Solutions
BIOCHEM-ACHIEVE(FIRST DAY DISCOUNTED)
Ch. 20 - Prob. 1PCh. 20 - Prob. 2PCh. 20 - Prob. 3PCh. 20 - Prob. 4PCh. 20 - Prob. 5PCh. 20 - Prob. 6PCh. 20 - Prob. 7PCh. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - Prob. 10P
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- Atp bookkeeping. Explain where the number of 38 and 32 atp per glucose molecules comes fromarrow_forwardPlease ASA. Thanku. In the reaction Na + Cl à Na+ + Cl-, which component is said to become ‘oxidized’ and which is considered reduced? Na, Cl Cl, Cl Na, Na Cl, Naarrow_forwardChemical energy. The diagram below shows a metabolic pathway that occurs in chloroplasts during photosynthesis. ribulose bisphosphate (RuBP) ADP + P₁ carbon dioxide (CO₂) 1 X HINEW ribulose-1,5-bisphosphate carboxylase-oxygenase (RuBisCo) glucose triose phosphate (TP) State two features of metabolic pathways? two key features of metabolic pathways glycerate-3-phosphate (GP) are their -X ADP + P₁ interconnectednearrow_forward
- Fill in the blank. The equation describes how the reaction rate of solutes in enzymatic reactions varies with solute concentrationarrow_forwardHelp is appreciated. Think of an unusual eukaryotic species in which its ATP synthase has 12 subunits for its c ring. How many ATP molecules can be produced per pair of electrons that traverse the respiratory chian starting at Complex I? A. 2 ATP/2e- B. 1 ATP/2e- C. 0.5 ATP/2e- D. 1.5 ATP/2e- E. 3 ATP/2e-arrow_forwardLife requires energy. In a short essay (100–150 words), describe the basic principles of bioenergetics in an animal cell. How is the flow and transformation of energy different in a photosynthesizing cell? Include the role of ATP and enzymes in your discussion.arrow_forward
- BIOCHEMISTRY. Could glycerol be used to regenerate the OAA for maintenance of TCA cycle activity? Yes or No? Explain.arrow_forwardThe last stop. The final electron acceptor for the electron-transport chain is which of the following? do a. 0202 b. Coenzyme Q с. СО2СО, d. NAD+NAD+arrow_forwardPlease ASAP. THankyou. Question 17 If you completely inhibit the Na+/K+ ATPase, which of the following would you most likely observe? Decrease in Na+/Ca++ exchanger activity The Nernst potential for K+ would become more positive Intracellular Na+ concentration would increase All of the abovearrow_forward
- In full details. Explain the significance of redox potentials formed by redox pairs in the electron transport chain.arrow_forwardIDENTIFICATION. Cellular localization of the electron transport chain during cellular respiration. A lipid soluble vitamin that has a regulatory function in blood clotting. Energy that must increase and needed for the synthesis of glucose and other sugars in plants as well as the production of ATP from ADP.arrow_forwardcreate a concept map for this. Include all terms. Oxidative Phosphorylation (ETC) Inner Mitochondrial Membrane, Membrane Proteins, High Energy Electrons, NADH, NAD+, FADH, FAD+, ADP, ATP, O2, H2O, ATP Synthase, Proton Gradient Use all terms listed. Make as many connections as you can. Be sure your maps are clear.arrow_forward
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