activities - Copying someone elses work in considered...

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“Copying someone else’s work in considered plagiarism and an honor code violation. The work completed in this study guide is my own. ” ____________________________ Shreya Maddireddy Carpenter 1 st 8/10/09 Additional Activities Chapter 9 Activity : BioFlix “Cellular Respiration” 1. Select the correct sequence of steps as energy is extracted from glucose during cellular respiration. glycolysis → acetyl CoA → citric acid cycle → electron transport chain 2. What is the correct general equation for cellular respiration? C 6 H 12 O 6 + 6 O 2 → 6 CO 2 + 6 H 2 O + ATP energy 3. Which of the following processes takes place in the cytosol of a eukaryotic cell? glycolysis 4. In what organelle would you find acetyl CoA formation, the citric acid cycle, and the electron transport chain? mitochondrion 5. Which statement describes glycolysis? This process splits glucose in half and produces 2 ATPs for each glucose 6. Which statement describes the citric acid cycle? This process produces some ATP and carbon dioxide in the mitochondrion. 7. Which statement describes the electron transport chain? This process uses energy captured from electrons flowing to oxygen to produce most of the ATPs in cellular respiration Activity : Glycolysis Splitting of glucose into pyruvate; series of ten enzyme-catalyzed chemical reactions that can be divided into two main phases (energy-investment phase, energy payoff phase). One metabolic pathway that occurs in all living cells, serving as the starting point for fermentation or aerobic respiration. A net of two ATPs are formed with two NADH molecules for each glucose molecule broken down during glycolysis Activity: Citric Acid Cycle Acetyl CoA enters citric acid cycle; 2-carbon fragment of acetyl CoA attaches to the 4-carbon molecule oxaloacetate in the first reaction of the cycle, forming citrate. Electrons are carried off by molecules of NADH and FADH 2 ; one step produces ATP molecule by substrate-level phosphorylation. Two acetyl CoA molecules are produced for each glucose molecule broken down, a second acetyl CoA enters the citric acid cycle; same series of reactions occurs, releasing carbon dioxide and producing more NADH, FADH 2 , and ATP. Cell has gained two ATPs that can be used directly; most of the energy originally contained in the bonds of glucose is now carried by the NADH and FADH 2 molecules. Activity: Electron Transport Oxidative phosphorylation is the production of ATP using energy derived from the redox reactions of an electron transport chain. NADH gives up its high-energy electrons to the first complex in the electron transport chain; electrons give up their energy as they are pulled from NADH toward highly electronegative oxygen; energy given up by the flow of electrons is used to pump hydrogen ions from the mitochondrial matrix into the intermembrane space; The last complex adds a pair of electrons to an oxygen atom and two hydrogen ions, forming water. Glycolysis and the citric acid cycle produce a small amount of ATP by substrate-level
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activities - Copying someone elses work in considered...

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