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- Match the term with the best description. _____ mitochondrial matrix a. needed for glycolysis _____ pyruvate b. inner space _____ NAD+ c. makes many ATP _____ mitochondrion d. product of glycolysis _____ NADH e. reduced coenzyme _____ anaerobic f. no oxygen requiredWhat is the final acceptor for electrons in cellular respiration? a. oxygen b. ATP c. carbon dioxide d. hydrogen e. water7. Why are electron carriers (NAD+/NADH and FAD/FADH2) so important in the process of cellular respiration? a) They deliver electrons to the ETC, which in turn sets up chemiosmosis, where most of the ATP is generated. b) They separate the electrons from the protons so that the protons can be moved out of the mitochondrion. c) NADH and FADH2 are major components of the ETC, so without them, there would be no ETC in the cell. d) The electrons that they carry are able to directly phosphorylate ADP in order to generate the bulk of ATP in the cell. e) They transport protons across the mitochondrial membrane.
- 5. a) The cell creates molecules of NADH and FADH2to use in the electron transport chain as they are electron carrier molecules. The electron transfers from these moleculesdrives the movement of what molecule across the mitochondrial membrane?b) What is chemiosmosis?c) How does the cell use chemiosmosis to drive overcome the thermodynamic barrier of bringing phosphates close togehter to create ATP?d) What steps of oxidative phosphorylation are in the cytosol and which are in the mitochondria?e) Cellular respiration can be controlled at the post-translational level. What does this mean, using GLUT as an example? Why is post-translational control of GLUT evolutionarilyadaptive over transcriptional control?f) How does establishment of equillibria of various molecules control metabolic reactions? What are three ways high ATP in the cell control cellular respiration?g) Why are the enzymes controlling the initial steps of various biochemical pathways are targeted by allosteric control?1.) [Cellular Respiration] Among the glycolysis products, which will most likely to make a high net production of ATP? a.) CO2 b.)NADH c.)H2O d.)ATP Synthase 2.) [Photosynthesis] What similar feature of both mitochondria and chloroplasts is known to help in their role in photosynthesis and respiration? a.) increased organelle volume b.) Decreased organelle volume c.) Increased membrane thickness d.) Increase membrane protein content9 .The energy of electron transport (by the ETC) serves to move protons (hydrogen ions, or H+) to the intermembrane space of the mitochondrion. How does this help the mitochondrion produce ATP? a) This movement of protons sets up the electrochemical gradient that drives ATP synthesis in the mitochondrion. b) The protons pick up electrons from the electron transport chain on their way through the inner mitochondrial membrane c) The protons receive electrons from the NAD+ and FAD that were accepted in glycolysis ad the citric acid cycle d) The protons are transferred to oxygen in an energy-releasing reaction
- 1)Where is the most Potential Energy Stored at the end of the Citric Acid Cycle? A. High energy electron NADH B. Electron Tansport chain C. G3P D. ATP molecuoles 2) The movement of several solutes simoultanously a. Simple diffusion b. bulk transport c. Passive trasnsport d. Active Trasnport E. Osmosis 3) What is the source of electrons for photosysthesis? a. Oxygen b. ATP c. water D. Glucose E. Carbon dioxide 3) Movement of several solute acrossss cocentration graidients A. Simple diffusion B. Bulk transpoert C. Passive trasnport D. Active Transport E. Facilitated diffusion#1) As electrons move through the mitochondrial space? A) water is oxidized B) the PH of the intermembrane space decreases C) they will no longer be able to perform anaerobic respiration #2) A child is born with a rare disease in which mitochondria are missing from skeletal muscle cells. However, the muscles still function. Phisicans find what? A) the muscles contain large amounts of carbon dioxide following even mild physical exercise B) the muscle cells cannot split glucose to pyruvate C) the muscles require extremly high levels of oxygen to function #3) Bacteria that are unable to survive in the presence of oxygen are called? A) obligate anaerobes B) aerotolerant anaerobes C) facultative anaerobes #4) A friend tells you that he is going on a low-carb diet to lose weight because he thinks that carbs contain more energy than fats or protein. What would you tell your friend about his plan? A) This is a good idea because sugars have more electrons than fats and protein B) This is an…A mutant algae has some of its mitochondria missing with inner mitochondrial membrane. Which of the following processed would be completely affected in these mitochondria? A. Electron transport chain B. Biosynthesis C. Glycolic D. Alcoholic fermentation 2. Which of the following cellular respiration processes can produce the most number of ATP per molecule of glucose oxidized? A. Alcoholic fermentation B. Lactic acid fermentation C. Aerobic respiration D. All produce an equal number of APPS.
- Why are electron carriers (NAD+/NADH and FAD/FADH2) so important in the process of cellular respiration? A)NADH and FADH2 are major components of the ETC, so without them, there would be no ETC in the cell. B)They deliver electrons to the ETC, which in turn sets up chemiosmosis, where most of the ATP is generated. C)They separate the electrons from the protons so that the protons can be moved out of the mitochondrion. D)The electrons that they carry are able to directly phosphorylate ADP in order to generate the bulk of ATP in the cell. E) They transport protons across the mitochondrial membrane. 14.1. A toxin that inhibits the establishment of the proton gradient across the inner mitochondrial membrane would cause the following result: ATP synthase would be unable to produce ATP. Substrate-level phosphorylation would be inhibited. Pyruvate would be unable to enter the TCA cycle. NADH would be oxidized. Fermentation could not occur.1. Label each statement about electron transport chain and oxidative phosphorylation as true or false and state why you say so. a. The electron transport chain involves four enzyme complexes found in mitochondria. b. NADH and FADH2 are oxidized in the electron transport chain. c. HCN is a poison that binds to the ATP synthase enzyme, thus inhibiting oxidative phosphorylation. d. During electron transport, H+ is pumped across the inner mitochondrial membrane into the matrix.