Cellular Respiration Review 1. 2. 3. Use the diagram to label the overall goal of cellular respiration. Circle Write the name of the organelle in which it occurs in big letters over the top. Label the three main stages and number them in order, 1, 2, 3. Mrs. Loyd cschmittloyd@waukeeschools.org Page 1 of 8 1/29/15 http://loydbiology.weebly.com Modify the figure by adding labeled boxes and arrows to show how the process changes when there is no oxygen NAD+ is regene rated for use NAD+ 3C picks up e‘s to become lactic acid. X Mrs. Loyd cschmittloyd@waukeeschools.org Page 2 of 8 1/29/15 http://loydbiology.weebly.com 4 pts. Use the table to list the beginning and ending molecules for glycolysis and cellular respiration. reactants products reactants Glucose, 2 ATP, empty ecarriers Pyruvate, O2, ADP+Pi, empty ecarriers products 2-pyruvate, 4 ATP, loaded ecarriers CO2, loaded e- carriers, 36-38 ATP, H2O Glycolysis Cellular respiration Glycolysis Cellular respiration Mrs. Loyd cschmittloyd@waukeeschools.org Page 3 of 8 1/29/15 http://loydbiology.weebly.com Use the word bank to label the diagram. Write the name of the process across the top of the figure. 1-glucose O2 NAD+ Mrs. Loyd cschmittloyd@waukeeschools.org NADH 2-pyruvate Page 4 of 8 ADP + Pi 2- e-‘s 1/29/15 http://loydbiology.weebly.com Use the word bank to label the figure. Citric Acid Cycle Pyruvate Glucose without O2 with O2 Cellular Respiration cytosol Glycolysis Fermentation Acetyl CoA (a 2-C molecule) cell membrane matrix of the mitochondrion “ethanol or lactic acid” cell membrane matrix of the Label each arrow. Mrs. Loyd cschmittloyd@waukeeschools.org Page 5 of 8 1/29/15 http://loydbiology.weebly.com Use the figure to explain how high-energy electrons are used to make ATP. What role is played by the proteins of the electron transport chain (ETC) and ATP-synthase? Mrs. Loyd cschmittloyd@waukeeschools.org Page 6 of 8 1/29/15 http://loydbiology.weebly.com The high-energy electrons are delivered to the ETC where the proteins move the electrons while dragging H+ across the membrane. Once the electrons reach the bottom of the chain, they are at their ground state again and are taken in by oxygen which combines with H+ to form water. The H+ gradient that has formed across the inner membrane is allowed to flow down its gradient back into the matrix through ATP Synthase. This phosphorylates ADP and Pi to make ATP. This process accounts for 18x MORE ATP than anaerobic respiration (fermentation) can provide. When this process evolved, it gave a huge advantage to the cells that could carry it out. The process quickly spread as the cells with it reproduced the most successfully. Mrs. Loyd cschmittloyd@waukeeschools.org Page 7 of 8 1/29/15 http://loydbiology.weebly.com Complete the figure and then use it to explain the similarities between mitochondria and chloroplasts. a. b. c. d. e. ETC ATP Synthase Thylakoid Space Stroma ATP Both processes use an ETC and ATP synthase to make ATP two spaces separated by a membrane a H+ gradient created by the ETC Intermembrane space Thylakoid space Inner membrane Thylakoid membrane Matrix Stroma Mrs. Loyd cschmittloyd@waukeeschools.org Page 8 of 8 1/29/15 http://loydbiology.weebly.com