BIOL 101 The Cell (Part 3) PDF

BIOL 101 The Cell (Part 3)  Cellular Respiration Cell __________ metabolism includes all of the chemical reactions that take place in a cell Organized into metabolic pathways ____________________________ Each pathway contains a series of steps...

BIOL 101 The Cell (Part 3)  Cellular Respiration Cell __________ metabolism includes all of the chemical reactions that take place in a cell Organized into metabolic pathways ____________________________ Each pathway contains a series of steps _______________________________________ Specific enzymes speed up each step of the pathway ____________________________ May be catabolic (breakdown) or anabolic (building up)  Cellular Respiration Both are catabolic pathways that generate cellular energy Complex molecules are broken down into simpler compounds Energy is released Cellular respiration requires oxygen to __________ glucose into final break down products: _____________ carbon dioxide __________ Water __________ Energy as atp  Phases of Cellular Respiration Four phases of cellular respiration: Glycolysis Transition reaction Citric acid cycle Electron transport chain ____________________________ Phases occur continously in the cell  Cellular Respiration: Phase 1 Phase 1: Glycolysis Occurs in the _______ cytoplasm of energy Splits glucose into ____ two pyruvate molecules Generates a net gain of ____ 2 ATP and ____ 2 NADH molecules energy molecules Does not require _______ oxygen to occur  Cellular Respiration: Phase 2 Phase 2: Transition reaction Occurs within the ___________ mitochondria Removes ______ carbon as CO2 from each pyruvate Generates an ________molecule acetyl CoA and _____ NADH molecule from each pyruvate broken down https://biology.reachingfordreams.com/biology/cellular-energy/cellular- respiration/5-transition-reaction-1-step-of-aerobic-cellular-respiration  Cellular Respiration: Phase 3 Phase 3: Citric acid cycle or Krebs cycle Important that it releases CO2 as a waste product Occurs within the ___________ mitochondria Acetyl CoA enters the ______________ citric acid cycle Each Acetyl CoA produces ___ 1 ATP, ___ 1 FADH and ____ 2 3 NADH molecules and releases CO2as a waste product  Cellular Respiration: Phase 4 Generates the most amount of ATP in the whole process Phase 4: Electron transport chain Occurs across the __________ inner membrane of the ___________ mitochondria Requires ______ oxygen Electrons from FADH2 and NADH are transferred from one protein to another, until they reach oxygen Releases energy that results in ___ 32 ATP molecules we have the formation of water as it gets passed down in each step, it loses energy and we are making ATP  Summary of Cellular Respiration Phases Phase Location Description Main Products Glycolysis Cytoplasm Several-step process by which 2 pyruvate glucose is split into 2 pyruvate 2 ATP 2 NADH Transition Mitochondria One CO2 is removed from each C O sub 2 2 acetyl CoA reaction pyruvate, the resulting molecules 2 NADH bind to CoA, forming 2 acetyl CoA Citric acid cycle Mitochondria Cyclic series of eight chemical 2 ATP reactions by which acetyl CoA is 2 FADH2 Co2 waste F A D H sub 2 broken down FADH2 6 NADH Electron transport Mitochondria Electrons from NADH and are F A D H sub 2 32 ATP chain passed from one protein to the H2O H sub 2 O next, releasing, energy for ATP synthesis https://www.osmosis.org/answers/cellular-respiration Summary of Cellular Respiration  Which of the following is NOT a product of cellular respiration? a) Carbon dioxide b) Energy (ATP) c) Oxygen d) Water © 2017 Pearson Education, Inc.  The three processes that together are called cellular respiration are _____. a) citric acid cycle, cyclic phosphorylation, and fermentation b) glycolysis, fermentation, and the Krebs cycle c) glycolysis, citric acid cycle, and the electron transport chain d) lactic acid cycle, citric acid cycle, and fermentation © 2017 Pearson Education, Inc.  The reason that most body systems are concerned with getting oxygen to the mitochondria is so that _____. a) carbon dioxide can be given off b) ATP can be produced c) heat can be generated d) water can be released to the cells © 2017 Pearson Education, Inc.