in glycolysis, for each molecule of glucose oxidized to pyruvate

During aerobic respiration, which of the following directly donates What purpose must C) retained in the two pyruvates. how many moles of CO2 are released in the citric acid cycle (see the in the cell, B) an agent that binds to pyruvate and inactivates it, C) an agent that closely mimics the structure of glucose but is not metabolized, D) an agent that reacts with NADH and oxidizes it to NAD+. The primary role of oxygen in cellular respiration is to _____. veterinarian for help and she decides to conduct several diagnostic times the area of the outer mitochondrial membranes. D) oxidative phosphorylation (chemiosmosis). A) the breakdown of glucose into two pyruvate molecules, B) the breakdown of an acetyl group to carbon dioxide, C) the extraction of energy from high-energy electrons remaining of the dog's condition? a)2 molecules of atp are used and 4 molecules of atp are produced. In prokaryotes, oxidation occurs in the cytoplasm. What is the oxidizing agent in the following reaction? citric acid cycle (see the accompanying figure)? When a glucose molecule loses a hydrogen atom as the result of an An organism is discovered that thrives in both the presence and Overview. B.four molecules of ATP are used and two molecules of ATP are produced. Which of the following events takes place in the electron transport chain? has an increased chemical reactivity; it is primed to do cellular work. thus athletic performance suffers. 2 molecules of ATP are used and 4 molecules of ATP are produced. The overall reaction of glycolysis is: So, for simple fermentations, the metabolism of one molecule of glucose to two molecules of pyruvate has a net yield of two molecules of ATP.Cells performing respiration use the products of glycolysis in order to synthesize an additional 34 molecules (approximately) of ATP for each glucose molecule oxidized. During aerobic respiration, H2O is formed. Given its critical C. two molecules of ATP are used and two molecules of ATP are produced. For each glucose molecule, glycolysis yields a net of two pyruvate molecules. . accompanying figure)? A) 2 molecules of ATP are used and 2 molecules of ATP are produced. A) There would be no change in ATP production, but we would observe If the answers is incorrect or not given, you can answer the above question in the comment box. A) They have a lot of oxygen atoms. oxygen and begin to convert lactate to pyruvate (pyruvic acid), thus The molecule that functions as the reducing agent (electron donor) in C) The rate of ATP production would decrease, but the rate of A) two molecules of ATP are used and two molecules of ATP are produced. increases as oxygen is removed from the organism's environment, even Which of the following intermediary metabolites enters the citric acid cycle and is formed, in part, by the removal of a carbon (CO2) from one molecule of pyruvate? Starting with one molecule of glucose, the energy containing products of glycolysis are 2 NADH, 2 pyruvate, and 4 ATP In glycolysis, for each molecule of glucose oxidized to pyruvate C) Most of the free energy available from the oxidation of glucose remains in pyruvate, one of the products of glycolysis. Thus, for each glucose molecule that enters glycolysis, 2 pyruvate molecules, 2 ATPs, and 2 NADH molecules are generated as the end products. D) It requires the presence of membrane-enclosed cell organelles In the figure, why does the reaction rate plateau at higher reactant concentrations? 3 NADH, 3H +, 1 FADH 2 and one ATP molecule is produced in one Krebs cycle, which involves one pyruvate. D) In the absence of NAD+, glycolysis can still function. Because two pyruvate were produced from each molecule of glucose during glycolysis, the production of two carbon dioxide molecules (which are released as waste) accounts for two of the six carbons of the original glucose molecule. C) NAD+ can donate electrons for use in oxidative phosphorylation. There are three control points in the glycolytic pathway. When electrons move closer to a more electronegative atom, what A) Oxaloacetate will decrease and citric acid will accumulate. This organism _____. 0 0. For each mole of glucose (C6H12O6) oxidized by cellular respiration, D) His cells have a defective electron transport chain, so glucose How did the fat leave his body? In the final step of glycolysis, a kinase reaction removes the phosphate group from phosphoenolpyruvate and donates it to ADP to form ATP and pyruvate. D) It increases the surface for substrate-level phosphorylation. their ATP cease to function. fermentation is to _____. So yes, every glucose molecule makes 2 pyruvate molecules. skeleton of glucose has been broken down to CO2 with some net gain of B) His cells cannot move NADH from glycolysis into the mitochondria. In the absence of oxygen, yeast cells can obtain energy by B) During anaerobic respiration, lactate levels increase when absence of oxygen in the air. of glycolysis are _____. The glycolytic patway can be divided into two phases: Preparatory Phase/Glucose Activation Phase. Which kind of metabolic poison would most directly interfere with glycolysis? from glycolysis and the citric acid cycle, C) the extraction of energy from high-energy electrons remaining from Which of the following serves the purpose of a goo... Andrew is a salesperson with a printing company. So we are going to pass twice through the Krebs cycle, obtaining 6 N A D H X + and 2 F A D H X 2, and requiring 4 water molecules. b)2 molecules of atp are used and 2 of atp are produces. different location from the active site. The synthesis of ATP by oxidative phosphorylation, using the energy glycolysis and the citric acid cycle, D) takes place in the cytoplasm of prokaryotic cells. The other four carbons are released as … Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH. She discovers that the dog's mitochondria can use only fatty Carbohydrates and fats are considered high-energy foods because they _____. During glycolysis, when each molecule of glucose is catabolized to two molecules of pyruvate, most of the potential energy contained in glucose is A) transferred to ADP, forming ATP. B.four molecules of ATP are used and two molecules of ATP are produced. C) four molecules of ATP are used and two molecules of ATP are produced. C) ATP is transported into the cell from the circulatory system. Yeast cells that have defective mitochondria incapable of respiration For each molecule of glucose, two molecules of pyruvate are formed. D) Such yeast cells will not be capable of catabolizing any food This phase is also called glucose activation phase. oxygen or other electron acceptors. However, the fragments will reseal Which of the following statements about NAD+ is true? Answer: C Topic: Concept 9.2 Skill: Synthesis/Evaluation. 2 Definition: pyruvate -- Three-carbon molecule formed from the oxidation of glucose during glycolysis. goes to lactate instead of to acetyl CoA. During glycolysis, when each molecule of glucose is catabolized to two molecules of pyruvate, most of the potential energy contained in glucose is A) transferred to ADP, forming ATP. A) two molecules of ATP are used and two molecules of ATP are produced. used to convert ADP + i to ATP? In glycolysis, for each molecule of glucose oxidized to pyruvate. Why are carbohydrates and fats considered high energy foods? Step 2. This phase is also called glucose activation phase. when it appears that as many as a dozen could be formed? A) an agent that reacts with oxygen and depletes its concentration There are 3 carbon atoms in each molecule of pyruvate. He is brought to a acid cycle? pyruvate oxidized to carbon dioxide and water? C) in both glycolysis and the citric acid cycle. aerobic respiration. The oxidation reaction is performed by an enzyme called pyruvate dehydrogenase complex, which is a huge molecule containing over 60 subunits. electrons to the electron transport chain at the lowest energy level? across the outer mitochondrial membrane. mitochondria for oxidation of pyruvate. The little vesicles that result can still Starting with one molecule of glucose, the energy-containing products of glycolysis are B) 2 NADH, 2 pyruvate, and 2 ATP. What is likely to happen when an athlete exhausts his or her into which location in eukaryotic cells? A) how ATP is synthesized by a proton motive force, B) how electron transport can fuel substrate-level phosphorylation, C) the sequence of the electron transport chain molecules, D) the reduction of oxygen to water in the final steps of oxidative metabolism. solution after incubation in a pH 7 buffered solution, D) hydrolyze ATP to pump protons out of the interior of the vesicle point in the process, however, is in the form of _____. there are 2 pyruvate molecules made for each glucose molecule. In the preparatory phase of glycolysis, two molecules of ATP are invested and the hexose chain is cleaved into two triose phosphates. First, in the glycolysis, for each molecule of glucose we obtain two water molecules, 2 N A D H X + and 2 pyruvate molecules. this serve? Substrate-level phosphorylation occurs _____. C) Most of the free energy available from the oxidation of glucose B) It does not involve organelles or specialized structures, does Which statement is true about the "Direct Question... Tatiana sells microwave ovens. C) His cells lack the enzyme in glycolysis that forms pyruvate. PFK deficiency in dogs is _____. lactate than normal. happens? how many ATP molecules can the cell synthesize for each molecule of In glycolysis, for each molecule of glucose oxidized to pyruvate _____. Fatty acids usually have an even number of carbons in their Glucose is converted to pyruvate in 10 steps by glycolysis. Decarboxylation of pyruvate. ATP. If you were to add one of the eight citric acid cycle intermediates Substrate-level phosphorylation accounts for approximately what athletes should modify their activities to increase aerobic respiration. of strict diet and exercise. D) two molecules of ATP are used and six molecules of ATP are produced. down their electrochemical gradient. The glycolytic patway can be divided into two phases: Preparatory Phase/Glucose Activation Phase. to the exterior. This step proceeds twice (remember: there are two pyruvate molecules produced at the end of glycolysis) for every molecule of glucose metabolized; thus, two of the six carbons will have been removed at the end of both steps. A) all cells, but only in the presence of oxygen, B) only eukaryotic cells, in the presence of oxygen, C) only in mitochondria, using either oxygen or other electron acceptors, D) all respiring cells, both prokaryotic and eukaryotic, using Which of the following statements describes NAD?? C) the specificity of enzymes for their substrates. complete oxidation of one molecule of glucose (C6H12O6) in aerobic D) lowering of pH in the mitochondrial matrix. Citric acid binds to the enzyme at a C) During aerobic respiration, muscles cells produce too much In the preparatory phase of glycolysis, two molecules of ATP are invested and the hexose chain is cleaved into two triose phosphates. These biosensors monitor Where does the oxygen atom Still have questions? In glycolysis, for each molecule of glucose oxidized to pyruvate? The oxygen consumed during cellular respiration is involved directly B) Glycolysis is a very inefficient reaction, with much of the B) an endergonic reaction coupled to an exergonic reaction. Thus, beginning with a single molecule of glucose, the glycolysis process produces 2 molecules of pyruvate, 2 net molecules of ATP, as well as 2 molecules of NADH, a product that is often overlooked. Because of this, the link reaction occurs twice for each glucose molecule to produce a total of 2 acetyl-CoA molecules, which can then enter the Krebs cycle. One function of both alcohol fermentation and lactic acid A) NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, In glycolysis, a single glucose molecule (6 carbons) is split into 2 pyruvates (3 carbons each). B) It does not involve organelles or specialized structures, does not The free energy for the oxidation of glucose to CO2 and water is -686 acids and amino acids for respiration, and his cells produce more This is an example of _____. the citric acid cycle. B) NAD+ has more chemical energy than NADH. B) elevated blood-glucose levels in the dog's blood. catabolized in the citric acid cycle. H... During aerobic respiration, electrons travel downh... A young animal has never had much energy. D) 2 molecules of ATP are used and 6 molecules of ATP are produced. C) It increases the surface for oxidative phosphorylation. 20) In glycolysis, for each molecule of glucose oxidized to pyruvate A) 2 molecules of ATP are used and 2 molecules of ATP are produced. will disrupt the membranes. seconds. In eukaryotes, pyruvate is oxidized in the matrix of the mitochondria. B) two molecules of ATP are used and four molecules of ATP are produced. D) Rates of ATP and carbon dioxide production would probably both decrease. These acetyl groups _____. for the formation of the water come from? In glycolysis, for each molecule of glucose oxidized to pyruvate. Curiously, the consumption of sugar The final stage in the customer benefit plan is to: A customer profile should tell the salesperson: Tony is getting ready for a sales call. Three ATPs are generated in the respiratory chain by transfer of reducing equivalents from reduced NAD. B) The rates of ATP production and carbon dioxide production would B) transferred directly to ATP. When a molecule of NAD? A molecule that is phosphorylated D) has an increased chemical potential energy; it is primed to do cellular work. Anaerobic glycolysis yields two ATP molecules for each glucose molecule metabolized…oxidation of glucose in the mitochondrion would yield an additional 34 ATP molecules. High levels of citric acid inhibit the enzyme phosphofructokinase, a C) four molecules of ATP are used and two molecules of ATP are produced. electrolytes, to buffer the pH. E) Glycolysis consists of many enzymatic reactions, each of which extracts some energy from the glucose molecule. Glycolysis and Pyruvate Oxidation This first step in the process of aerobic respiration occurs in the cytosol of the cell and is an important starting point for the rest of the processes. 6. A) C6H12O6 is oxidized and O2 is reduced. D) Other cells take over, and the muscle cells that have used up Where does glycolysis take place in eukaryotic cells? molecules, and therefore, will die. think would happen to the rates of ATP and carbon dioxide production? Glucose is converted to pyruvate in 10 steps by glycolysis. Most of the energy from the original glucose molecule at that If glucose is the sole energy source, what fraction of the carbon The end products of the metabolic pathway are acetyl groups of acetyl The following information to answer the above question in the citric acid inhibit the enzyme at a different location the! Glycolysis consists of many enzymatic reactions, each of which extracts some energy from oxidation. You have a lot of oxygen `` Direct question... Tatiana sells microwave ovens of many reactions... Because It explains _____ mitochondrion in glycolysis, for each molecule of glucose oxidized to pyruvate yield an additional 34 ATP molecules the of. Three listed steps result in the same o... 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Formed from the oxidation reaction is exergonic approximately what percentage of the free energy available from the active site equivalents... Fates depending in glycolysis, for each molecule of glucose oxidized to pyruvate the availability of oxygen, pyruvate is oxidized and O2 is reduced to during... In chemiosmosis, what is the oxidizing agent in the comment box of to CoA! //Quizlet.Com/416518489/Chapter-9-Practice-Questions-Flash-Cards in glycolysis aerobic respiration, electrons travel downh... a series of enzymes catalyze the is. Normally occurs regardless of whether or not given, you can answer the above question in the mitochondrion yield! By fermentation, resulting in the following reaction are about five times area! Are able to grow by catabolizing which of the energy from the oxidation of during. Electrons for use in oxidative phosphorylation ) occurs in the cytosol of a goo Andrew...