Concept explainers
To draw: A simple sketch that illustrates an inner mitochondrial membrane that is actively involved in chemiosmosis. Then, label the two compartments it separates, ATP synthase complex, the proton gradient, and the compartment in which ATP is synthesized.
Concept introduction: The process in which the ions are moved by diffusion across a semi-permeable membrane to synthesize ATP is known as chemiosmosis. This process takes place inside the mitochondria during the aerobic
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Chapter 8 Solutions
Biology (MindTap Course List)
- Using the answer code on the right, indicate which form of energy production is being described: 1. takes place in the mitochondrial matrix 2. produces H2O as a by-product 3. results in a rich yield of ATP 4. takes place in the cytosol 5. processes acetyl-CoA 6. takes place in the mitochondrial innermembrane cristae 7. converts glucose into two pyruvate molecules 8. uses molecular oxygen 9. accomplished by the electron transport system and ATP synthase (a) glycolysis (b) citric acid cycle (c) oxidative phosphorylationarrow_forward(c) Compare the differences between oxidative phosphorylation and photophosphorylation by redrawing (if necessary) and completing the table given below: Table 1: Comparison of oxidative phosphorylation and photophosphorylation Oxidative phosphorylation Photophosphorylation Organelle Source of electrons Final electron acceptor Source of energy Role of ATParrow_forwardDuring chemiosmosis... a concentration gradient is generated when large numbers of H+ ions are passively transported from the mitochondrion's intermembrane space to the matrix. ATP is synthesized when H* ions move through a channel in ATP synthase. energy is released as H+ ions move freely across mitochondrial membranes. H+ ions serve as the final electron acceptor.arrow_forward
- 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 spacearrow_forwardExamine Figure 11-13. Where are the electron carriers of the mitochondrial electron transport chain located— in the matrix, the membrane, or in the crista lumen? As they carry electrons, some of them also deposit protons (H+). Are the protons deposited in the matrix or in the crista lumen?arrow_forwardDraw a basic drawing of a thylakoid membrane that is actively engaged in chemiosmosis and mark the two compartments it divides. Add the ATP synthase complex, indicate the proton gradient, and define which compartment ATP is generated in.arrow_forward
- Describe with a summary picture the aerobic respiration from glucose (CHO) all the way to Co2 and water. Highlight, with yellow the flow of H (and then electrons and protons) and in red the ATP Include: inner membrane, outer membrane, matrix, intermembrane space glycolisis, Krebs cycle (citirc acid), e.t.c. (oxidative phosphorilation) ATP synthase, NADH dehydrogenase complex, cyt b-c1complex, cyt oxidase complex, ubiquinone, cytochrome-c glucose, pyruvate, acetyl-Co-A, H2O, O2, CO2, NADH, NAD+, FADH2, e-, H+, ATP, ADP +Pi direction of the arrows, inner membrane potential, gradient of protons, inner membrane transporters, outer membrane porinsarrow_forwardDraw and label a lipid bilayer containing the large mitochondrial trans-membrane protein complexes representing complex I, II, II, and IV, and ATP Synthase. Make two more of these drawings. Label the first one mitochondrial electron source and using a different ink color, indicate the source(s) of electrons. Label the second mitochondrial energy source, and indicate the source of energy driving the electron transport chain. In the third, label the mitochondrial electron acceptor in its proper position. In this third drawing, also include ATP synthase (in its correct orientation-the spherical part is on the opposite side of the membrane as the H+ reservoir). Label your diagrams with the correct names for the membranes, ATP synthase, and to show where the protons (H*) are pumped to drive ATP synthesis.arrow_forwardComplete the Metabolic process of the concept map provided below and base your answer based on these provided choices: Choices: cytoplasm, ATP synthase, electron, NADH, acetyl-CoA, hydrogen ions, anaerobic respiration, oxaloacetate, oxygen, citrate, TCA Cycle, 2 ATP, aerobic respiration, 6 NADH, ATP, water, sulfate, hydrogen sulfide, mitochondrial matrix, 2FADH2, pyruvate, ethanolarrow_forward
- Draw and label a lipid bilayer containing the large mitochondrial trans-membrane protein complexes representing complex I, II, III, and IV, and ATP Synthase. Make two more of these drawings. Label the first one mitochondrial electron source and using a different ink color, indicate the source(s) of electrons. Label the second mitochondrial energy source, and indicate the source of energy driving the electron transport chain. In the third, label the mitochondrial electron acceptor in its proper position. In this third drawing, also include ATP synthase (in its correct orientation-the spherical part is on the opposite side of the membrane as the H+ reservoir). Label your diagrams with the correct names for the membranes, ATP synthase, and to show where the protons (H+) are pumped to drive ATP synthesis.arrow_forwardExplain how a gradient of protons is established across the inner mitochondrial membrane during chemiosmosisarrow_forwardDraw and label a lipid bilayer containing the large mitochondrial trans-membrane protein complexes representing complex I, II, III, and IV, and ATP Synthase. Label your diagrams with the correct names for the membranes, Make two more of these drawings. Label the first one mitochondrial electron source and using a different ink color, indicate the source(s) of electrons. Label the second mitochondrial energy source, and indicate the source of energy driving the electron transport chain. In the third, label the mitochondrial electron acceptor in its proper position. Also include ATP synthase (in its correct orientation-the spherical part is on the opposite side of the membrane as the H+ reservoir). Use a different color of ink to show where the protons (H+) are pumped to drive ATP synthesis. also indicate where ATP is generated and were the power is stored to generate ATP. NOW, do the same thing with chloroplasts. Draw and label a lipid bilayer containing the large photosynthetic…arrow_forward
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