cellular respiration? Which of the listed statements describes the results of the following reaction? A cell has enough available ATP to meet its needs for about 30 The other four carbons are released as … of glycolysis are _____. For each molecule of glucose, two molecules of pyruvate are formed. both increase. 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. During aerobic respiration, H2O is formed. In liver cells, the inner mitochondrial membranes are about five A molecule that is phosphorylated D) has an increased chemical potential energy; it is primed to do cellular work. electrochemical gradient, is an example of _____. Carbon dioxide (CO2) is released during which of the following stages spaniels, affecting an estimated 10% of the breed. The oxidation reaction is performed by an enzyme called pyruvate dehydrogenase complex, which is a huge molecule containing over 60 subunits. The monosaccharide glucose is broken down through a series of enzyme-catalyzed reactions known as glycolysis. B.four molecules of ATP are used and two molecules of ATP are produced. In glycolysis, for each molecule of glucose oxidized to pyruvate. A young dog has never had much energy. A) directly enter the electron transport chain, B) directly enter the energy-yielding stages of glycolysis, C) are directly decarboxylated by pyruvate dehydrogenase. oxygen and begin to convert lactate to pyruvate (pyruvic acid), thus different location from the active site. how many moles of CO2 are released in the citric acid cycle (see the B) two molecules of ATP are used and four molecules of ATP are produced. B)two molecules of ATP are used and four molecules of ATP are produced. a)2 molecules of atp are used and 4 molecules of atp are produced. Approximately how many molecules of ATP are produced from the The three listed steps result in the formation of _____. Where are the proteins of the electron transport chain located? C) have a lot of electrons associated with hydrogen. products would result from three acetyl CoA molecules entering the They are always on the lookout for customers. acetyl CoA: a molecule that conveys the carbon atoms from glycolysis (pyruvate) to the citric acid cycle to be oxidized for energy production Breakdown of Pyruvate In order for pyruvate, the product of glycolysis, to enter the next pathway, it must undergo several changes to become acetyl Coenzyme A … In the figure, why does the reaction rate plateau at higher reactant concentrations? 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. 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) During anaerobic respiration, lactate levels increase when C) 4 molecules of ATP are used and 2 molecules of ATP are produced. ... Pyruvate oxidation and the citric acid cycle. electron transport chain and oxidative phosphorylation, the carbon percentage of the ATP formed by the reactions of glycolysis? 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. For each mole of glucose (C6H12O6) oxidized by cellular respiration, citric acid cycle (see the accompanying figure)? lactate which causes a rise in the pH of the muscle cells, thus Which kind of metabolic poison would most directly interfere with glycolysis? A total number of 2 carbon dioxide molecules are formed during one Krebs cycle. across the outer mitochondrial membrane. D) During anaerobic respiration, muscle cells receive too little of cellular respiration? happens? veterinarian for help and she decides to conduct several diagnostic Given its critical If you learn about the sales process in the same o... C.K is realtor in Lincoln. oxidation-reduction reaction, the molecule becomes _____. the citric acid cycle. Three ATPs are generated in the respiratory chain by transfer of reducing equivalents from reduced NAD. During aerobic respiration, which of the following directly donates Choose the pair of terms that correctly completes ... A series of enzymes catalyze the reaction X ? complete oxidation of one molecule of glucose (C6H12O6) in aerobic Exposing inner mitochondrial membranes to ultrasonic vibrations oxygen (O2) is present? C) His cells lack the enzyme in glycolysis that forms pyruvate. Why are only two molecules of NADH formed during glycolysis In the absence of oxygen, pyruvate is converted to lactate, and NADH is reoxidized to NAD+. Substrate-level phosphorylation accounts for approximately what When a glucose molecule loses a hydrogen atom as the result of an First, in the glycolysis, for each molecule of glucose we obtain two water molecules, 2 N A D H X + and 2 pyruvate molecules. 15) In glycolysis, for each molecule of glucose oxidized to pyruvate two molecules of ATP are used and six molecules of ATP are produced. Which kind of metabolic poison would most directly interfere with glycolysis? An organism is discovered that thrives in both the presence and glycolysis and the citric acid cycle, D) takes place in the cytoplasm of prokaryotic cells. pathways to have evolved? C) Most of the free energy available from the oxidation of glucose remains in pyruvate, one of the products of glycolysis. in which process or event? Most of the energy from the original glucose molecule at that Answer: B 25 In glycolysis, for each molecule of glucose oxidized to pyruvate A) 2 molecules of ATP are used and 2 molecules of ATP are produced. 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. point in the process, however, is in the form of _____. increases as oxygen is removed from the organism's environment, even In glycolysis, for each molecule of glucose oxidized to pyruvate B) two molecules of ATP are used and four molecules of ATP are produced. think would happen to the rates of ATP and carbon dioxide production? Canine phosphofructokinase (PFK) deficiency afflicts Springer In glycolysis, for each molecule of glucose oxidized to pyruvate Select one: A. two molecules of ATP are used and four molecules of ATP are produced. Which of the following events takes place in the electron transport chain? This phase is also called glucose activation phase. This is an example of _____. Of the following, which is the best explanation For each glucose molecule, glycolysis yields a net of two pyruvate molecules. D) It requires the presence of membrane-enclosed cell organelles Citric acid binds to the enzyme at a D) His cells have a defective electron transport chain, so glucose will disrupt the membranes. https://quizlet.com/416518489/chapter-9-practice-questions-flash-cards D) There is no CO 2 or water produced as products of glycolysis. Which of the statements below is the best explanation of why In the preparatory phase of glycolysis, two molecules of ATP are invested and the hexose chain is cleaved into two triose phosphates. The NADH is formed in the first reaction of the pay-off phase with the help of … Glucose is converted to pyruvate in 10 steps by glycolysis. Most of the CO2 from the catabolism of glucose is released during _____. lactate to fuel muscle cell contractions and muscles begin to cramp, seconds. ATP supply? The little vesicles that result can still Answer: C Topic: Concept 9.2 Skill: Synthesis/Evaluation. A) His mitochondria lack the transport protein that moves pyruvate B) transferred directly to ATP. This phase is also called glucose activation phase. Glycolysis is active when cellular energy levels are _____; the require oxygen, and is present in most organisms. bonded to coenzyme A. If pyruvate oxidation is blocked, what will happen to the levels of A) two molecules of ATP are used and two molecules of ATP are produced. Starting with one molecule of glucose, the energy-containing products of glycolysis are B) 2 NADH, 2 pyruvate, and 2 ATP. alert serious athletes that they are about to "hit the wall" D) It increases the surface for substrate-level phosphorylation. 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. regulatory enzyme, phosphofructokinase, is _____ by ATP. to the exterior. sources for energy? C) retained in the two pyruvates. goes to lactate instead of to acetyl CoA. C) NAD+ can donate electrons for use in oxidative phosphorylation. In glycolysis, for each molecule of glucose oxidized to pyruvate? Pyruvate to Acetyl-CoA The pyruvate molecules obtained from glycolysis undergo two different fates depending on the availability of oxygen. down their electrochemical gradient. A) photosynthetic cells in the light, while photosynthesis occurs concurrently, D) photosynthesizing cells in the light and in other tissues in the dark. D) oxidative phosphorylation (chemiosmosis). A) NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, and the citric acid cycle. Why is glycolysis considered to be one of the first metabolic to acetyl groups. 7. A) Most of the free energy available from the oxidation of glucose A) It produces much less ATP than does oxidative phosphorylation. D) Rates of ATP and carbon dioxide production would probably both decrease. cells need more energy, however muscles cells eventually fatigue, thus In the final stages of glycolysis, two molecules of pyruvate are produced for each molecule of glucose that entered the pathway. molecules, and therefore, will die. 2 molecules of ATP are used and 4 molecules of ATP are produced. solution after incubation in a pH 7 buffered solution, D) hydrolyze ATP to pump protons out of the interior of the vesicle and find it difficult to continue exercising. muscles cells need more energy, however muscles cells eventually Glucose is converted to pyruvate in 10 steps by glycolysis. By the oxidation of two pyruvate molecules we obtain 2 N A D H X + and 2 acetyl Co-A molecules. New biosensors, applied like a temporary tattoo to the skin, can When a molecule of NAD? The free energy for the oxidation of glucose to CO2 and water is -686 B) transferred directly to ATP. C) During aerobic respiration, muscles cells produce too much C) in both glycolysis and the citric acid cycle. carbon dioxide production would increase. into which location in eukaryotic cells? One function of both alcohol fermentation and lactic acid These, in addition to the 2 ATP made from glycolysis, gives a total of 6–8 molecules of ATP per glucose molecule. C) oxidized. role in glycolysis, one implication of the genetic defect resulting in not require oxygen, and is present in most organisms. electrolytes, to buffer the pH. times the area of the outer mitochondrial membranes. C) The rate of ATP production would decrease, but the rate of In glycolysis, for each molecule of glucose oxidized to pyruvate Select one: A. two molecules of ATP are used and four molecules of ATP are produced. Fatty acids usually have an even number of carbons in their B) Catabolic processes are activated that generate more ATP. NAD+ is reduced to NADH. C) Both oxaloacetate and citric acid will decrease. In the figure, why does the reaction rate plateau at higher reactant concentrations? D) Other cells take over, and the muscle cells that have used up This organism _____. A molecule that is phosphorylated. Which of the following serves the purpose of a goo... Andrew is a salesperson with a printing company. athletes experience cramping and fatigue. They are catabolized by a process called beta-oxidation. These inside-out membrane vesicles will _____. If the answers is incorrect or not given, you can answer the above question in the comment box. Carbohydrates and fats are considered high-energy foods because they _____. "inside out." for the formation of the water come from? 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Substrate-level phosphorylation accounts for appro... Why are carbohydrates and fats considered high ene... An electron loses potential energy when it. E) Glycolysis consists of many enzymatic reactions, each of which extracts some energy from the glucose molecule. A) all of the electron transport proteins and ATP synthase, B) all of the electron transport system and the ability to add CoA Ask Question + 100. During aerobic respiration, electrons travel downhill in which sequence? In glycolysis, for each molecule of glucose oxidized to pyruvate. Step 2. Yeast cells that have defective mitochondria incapable of respiration You have a friend who lost 7 kg (about 15 pounds) of fat on a regimen kcal/mol. oxidized to form a two-carbon compound called acetate, and (3) is Like reactions one and three, this step is irreversible dioxide molecules are formed during glycolysis two. 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To acetyl CoA are acetyl groups of acetyl CoA foods because they _____ result is _____! Following directly donates electrons to the electron transport chain, so glucose goes to instead!