Question 1 1. Environmental changes can result in the inactivation of enzymes. Answer True False 1 points Question 2 1. Hydrolases are generally involved in __________ reactions. Answer anabolic catabolic both anabolic and catabolic neither anabolic nor catabolic oxidation-reduction 2 points Question 3 1. Which of the following types of carrier molecules is NOT found in electron transport chains? Answer ubiquinones hemoglobin flavoproteins
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driven by a diffusion force similar to osmosis‚ this process is referred to as ___________. 9. The return of the protons into the mitochondrial matrix through mitochondrial membrane channels occurs by the process of _________. 10. The amino acids must be first __________ before they can be used in catabolic reactions. 11. Fats undergo a process called ____ oxidation‚ in which the products are acetyl coenzyme molecules. 12. The first stage of cellular respiration‚______________‚ occurs
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involve the conversion of NAD+ to NADH. Because both glycolysis and the Krebs cycle produce NADH‚ both of these processes shut down when there is no available NAD+. 5. If the Krebs cycle does not require oxygen‚ why does cellular respiration stop after glycolysis when no oxygen is present? When no oxygen is present‚ oxidative phosphorylation cannot occur. As a result‚ the NADH produced in glycolysis and the Krebs cycle cannot be oxidized to NAD+. When no NAD+ is available‚ pyruvate cannot be converted
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Cellular respiration includes the processes of glycolysis‚ krebs cycle‚ and the electron transport chain. Glycolysis is used to convert glucose to produce two pyruvate as well as 4 ATP’s and 2 NADH but uses 2 ATP to have a net product of 2 ATP and 2 NADH. The krebs cycle converts pyruvate to Acetyl CoA‚ which produces 2 ATP‚8 NADH‚ and 2 FADH’s per glucose molecule. Electron transport Chain is the last and most important
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glycolysis‚ glucose (6 C) is broken into 2 pyruvic acid (3 C) 2 ATP is produced and 2 NADH come in to keep the energy released from broken bonds. The Bridge Before going to the Kreb’s cycle 2 pyruvic acid (3C) becomes 2 Acetyl CoA (2 C). As a result‚ 2CO2 is produced and 2NADH comes in the keep the energy released. Kreb’s Cycle Takes place in the cytoplasm for prokaryotes or in the mitochondria for eukaryores. Two Acetyl CoA spin around the Kreb’s cycle—one time for each. At the end‚ 2 Acetyl CoA
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1 Two critical ingredients required for cellular respiration are glucose and oxygen. Cellular Respiration‚ process in which cells produce the energy they need to survive. In cellular respiration‚ cells use oxygen to break down the sugar glucose and store its energy in molecules of adenosine triphosphate (ATP). Cellular respiration is critical for the survival of most organisms because the energy in glucose cannot be used by cells until it is stored in ATP. Cells use ATP to power virtually all of
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organisms produce adenosine triphosphate (ATP) as a source of energy for cellular work‚ using cellular respiration. Cellular respiration is a process that involves glycolysis -breaking down glucose into two molecules of 3- carbon pyruvate‚ the Krebs cycle - oxidizing organic fuel derived from pyruvate-‚ and the electron transport chain - moving electrons through a series of protein complexes to generate ATP (Reece‚ et.al‚ 2011). The process of cellular respiration occurs in the Cytoplasm and the Mitochondria
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reactions and pathways involved. Cellular Respiration can be divided into three metabolic processes; Glycolysis that occurs in the cytoplasm‚ Krebs cycle that takes place in the matrix of the mitochondria‚ and Oxidative phosphorylation that occurs via the electron
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The only cells in our body that can metabolize ethanol are in our liver. In the cells NAD+ oxidizes the ethanol to acetic acid‚ which generates an excess amount of NADH‚ which gives its electrons to the ETC. Then Oxidative phosphorylation occurs without the Krebs cycle. The carbohydrates that normally enter the Krebs cycle are turned to fat because the Krebs cycle is turned off. The fat is then secreted by the liver into the blood. The ethanol enters our bloodstream through our intestines
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through cellular respiration convert energy into ATP. They do this in three distinct stages; glycolysis‚the Krebs cycle and the electron transport chain. The Krebs cycle and electron transport chain are both aerobic process and require oxygen. In certain conditions where oxygen is not present or is low some organisms switch from cellular respiration into alcoholic or lactic acid fermentation. Fermentation is an anaerobic‚ metabolic pathway used to oxidize nicotinamide adenine dinucleotide
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