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Transcript
Name ___________________________________________ per ______ date _______ Cell Respiration Introduction Worksheet 1. Refer to text book page 223 2. 3. 4. 1. What is glycolysis? 5. Process in which one molecule of gluc broken in half, producing 2 molecules of pyruvic acid a 3 carbon compound Kick started with 2 ATP 4 ATP – 2 ATP to start, leaves 2 ATP ELECTRON CARRIER, PURPOSE – TO ACCEPT, CARRY A PAIR OF HIGH ENERGY ELECTRONS AND THERBY HELP TO PASS ENERGY FROM GLUCOSE TO OTHER PATHWAYS IN THE CELL. Very fast, does not need oxygen 2. How does the cell get glycolysis going? 3. If the cell uses 2 ATP molecules at the beginning of glycolysis, how does it end up with a net gain of 2 ATP molecules? 6. 4. Describe the function of NAD+. Very short time, all avail NAD+ are filled and no more ATP can be made 5. What are two advantages of glycolysis? 6. What problem (disadvantage) is there to glycolysis? Mitochondria are the energy producers of the cell. Glucose and other carbohydrates are made by plants during photosynthesis. Glucose is broken down and energy, ATP is a product of this process. Mitochondria have a double membrane like a nucleus and a chloroplast. The outer membrane is smooth and the inner membrane is convoluted into folds called cristae. These folds greatly increase the surface area of the membrane, thereby maximizing the amount of ATP that can be produced. The electron transport chain takes place across the cristae (crista singular). Inside the folds is the matrix, where the Krebs cycle occurs. Color and label: outer membrane red, cristae blue, matrix yellow _______________ _______________ _______________ ________ _______________ ________ _______________ _______________ ________