Determine whether each of the concentrations causes an increase or decrease in the activity of the electron transport chain. Increase in activity high NADH concentration low ADP concentration high oxygen concentration low phosphate concentration Answer Bank Decrease in activity large difference in H+ concentration across the inner mitochondrial membrane

Determine whether each of the concentrations causes an increase or decrease in the activity of the electron transport chain. Increase in activity high NADH concentration low ADP concentration high oxygen concentration low phosphate concentration Answer Bank Decrease in activity large difference in H+ concentration across the inner mitochondrial membrane

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter7: Releasing Chemical Energy

Section: Chapter Questions

Problem 15SQ: Match the term with the best description. _____ mitochondrial matrix a. needed for glycolysis _____...

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Which of the following statements about oxidative phosphorylation is correct? O H+ ions are transferred from Complex I or Complex II to ATP synthase where ATP production occ O Proton pumps transfer electrons from the cytosol to the mitochondrial matrix as electrons are tra O The chemical and electrical gradient is established between the intermembrane space and the ma electron carriers. O ATP synthase pumps electrons back to the intermembrane space as a consequence of electrocher mitochondrial matrix. • Previous
ADP and inorganic phosphate are provided for oxidative phosphorylation via an: ADP-ATP antiport and a proton-phosphate symport in the inner mitochondrial membrane. ADP-ATP antiport and a proton-phosphate symport in the outer mitochondrial membrane. O ADP-ATP antiport in the inner mitochondrial membrane and a phosphate uniport in the mitochondrial intermembrane space. ADP-phosphate symport in the inner mitochondrial membrane.
Referring to the figure below, explain why NADH yields more ATP than FADH2 does. Electron-transport and proton pump Oxidative phosphorylation Outer mitochondrial membrane H* -Intermembrane H+ H+ H+ space H* H+ H+ Cytochrome c H+ COQH, CoQ UU COQH2 CoQ JU U Inner mitochondrial membrane Ht e ATPase Complex II Complex II Complex IV Complex e ADP +P - Mitochondrial matrix NADH NAD+ FADH2 FAD АТР H+ -H+ H+ H20
Cyanide is a toxic substance. Cyanide is a cytochrome coxidase enzyme that is competitive. The last enzyme of the electron transport chain in mitochondria is cytochrome c oxidase. One of the most common substrates for cytochrome c oxidase is oxygen. Would an increase in the concentration of oxygen affect the inhibitioncaused by cyanide? How would conditions in the mitochondrial intermembrane spacechange if cytochrome c oxidase and the electron transport chain are notfunctioning properly. .Explain why this change in conditions will be harmful to a cell.
The proton motive force is the result ofa. ATP synthase transporting protons during ATP synthesisb. an electron gradient between the matrix and the intermembranespace of a mitochondrionc. a proton gradient between the matrix and intermembrane space ofa mitochondriond. a buildup of negatively charged ions
DRAW IT The graph here showsthe pH difference across theinner mitochondrial membraneover time in an actively respiringcell. At the time indicated by thevertical arrow, a metabolic poisonis added that specifically andcompletely inhibits all function ofmitochondrial ATP synthase. Drawwhat you would expect to see forthe rest of the graphed line, andexplain your graph.
Cyanide is a poisonous substance. Cyanide is a cytochrome c oxidase inhibitor that is competitive. The last enzyme of the electron transport chain in mitochondria is cytochrome c oxidase. One of the most common substrates for cytochrome c oxidase is oxygen.Would an increase in the concentration of oxygen affect the inhibitioncaused by cyanide?How would conditions in the mitochondrial intermembrane spacechange if cytochrome c oxidase and the electron transport chain are notfunctioning properly.. Explain why this change in conditions will be harmful to a cell.
The inner mitochondrial membrane normally O is virtually impermeable to hydrogen ions (protons). encompasses the F1 subunit of the ATP synthase. is permeable to NADH and NAD+. contains enzymes responsible for two of the chemical reactions that take place as part of glycolysis.
DESCRIBE the steps involved in the ATP production in the electron transport system (Only ETS, not glycolysis or Krebs cycle).
During chemiosmosis, ATP synthase ____________________. Select all that apply produces ATP in the mitochondrial matrix allows H+ to cross the inner membrane via facilitated diffusion generates water from oxygen and electrons in the mitochondrial matrix pumps H+ against its concentration gradient into the intermembrane space
The majority of ATP production in aerobic cellular respiration occurs within the mitochondria during electron transport. In this phase of cellular respiration, NADH and FADH, are oxidized to become NAD+ and FAD+. The protons and electrons released during this axidation are used to establisha chemiosmotic gradient in the mitochondrial intermembrane space. The potential established by this gradient is used to convert mechanical energy into the chemical energy needed to join an inorganic phosphate on to ADP, thus creating ATP. Mitochondrial DNA Lamela er membrane Inner boundary membrane - Cristal membrane Matrin- Cristae Matrix granule Ribosome ATP synthase Intermembrane space Intracristal space Peripheral space Outer membrane Parins Mitochondrion structure by Kelvin13 (CC BY-SA 3.0) Outer membrane Cyt e ATP Synthase NADH NAD+H ATP Citric ADP acid cycle Matrix Suecinate Fumee Inner membrane Intermembrane space Mitochondrial electron transport chain by Fvasconcello (CCO) a. Analyze why…
A chemical is applied to cells that allows the free flow of protons across the mitochondrial membrane. What is the effect on the proton gradient, ATP production, heat production, and the ETC during aerobic respiration?