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Grade 12 Biology Unit 2: Metabolic Processes Quiz: Glycolysis Name:______________________________ Date:_______________________________ Part A: Multiple Choice (circle the correct answer) 1. How many net ATP are produced by Glycolysis alone per glucose? a) 2 b) 4 c) 12 d) 8 2. Which one of the following is the 2nd molecule in the Glycolysis pathway? a) Glucose – 6 – phosphate b) Fructose – 6 phosphate c) Fructose - 1 ,6 biphosphate d) Glucose 3. Which one of the following is a reduced electron carrier that carries electrons to the ETC? a) GDP b) NADH+H+ c) NAD d) ADP 4. What are the names of both 3 carbon molecules that result when glucose is broken down? a) Glyceraldehyde – 3 – phosphate, 1,3 – biphosphate b) Glyceraldehyde – 3 – phosphate, dihydroxy – acetone phosphate c) Glyceraldehyde – 3 – phosphate, fructose – 1 ,6 biphosphate d) Dihydroxy – acetone phosphate, fructose – 1,6 biphosphate 5. What happens to the two carbons from acetyl – COA entering the Krebs cycle? a) Expelled as a gas b) Recycled in oxaloacetate c) Released as ethanol d) Converted into pyruvate 6. What is the name of the final product in Glycolysis? a) ATP b) NADH + H+ c) PEP d) Pyruvate 7. What is the net result for NADH + H+ after both pyruvate molecules from Glycolysis have completed the Krebs cycle? a) 4 b) 6 c) 2 d) 3 8. The transformation of isocitrate into alpha – ketoglutarate requires the use of two kinds of enzymes: a) Isomerase and dehydrogenase b) Dehydrogenase and decarboxylase c) Hydrase and phosphorylase d) Decarboxylase and phosphorylase Grade 12 Biology Unit 2: Metabolic Processes Quiz: Glycolysis 9. What two molecules create Acetyl CoA? a) Pyruvate + Coenzyme A b) H20 + Coenzyme A c) Pyruvate + H20 d) Coenzyme A + 0xygen Name:______________________________ Date:_______________________________ 10. Where does the Krebs cycle occur in the cell? a) Cytoplasm b) Matrix c) Cristae membrane d) Stroma 11. At the end of Glycolysis, the original glucose molecule has been broken down into _____________________ molecules. a) 2 glyceraldehyde – 3 - phosphate b) 3 pyruvate c) 2 phosphoenol pyruvate d) 2 pyruvate 12. The transformation of fumarate into malate requires the use of one enzyme: a) Dehydrogenase b) Phosphorylase c) Isomerase d) Hydrase 13. Approximately how much energy is in a glucose? The equivalent to… a) 90 ATP b) Glucose has no energy c) 31 ATP d) 2 ATP 14. Where in the cell does Glycolysis occur? a) Cytoplasm b) Matrix c) Cristae membrane d) Stroma 15. 1,3 - biphosphoglycerate readily gives up a phosphate group to _______ forming ___________. This results in a molecule of ______________________. a) ATP,ADP, 3 phosphoglycerate b) GDP, GTP, 2 phosphoglycerate c) NAD+, NADH +H+, 3 phosphoglycerate d) ADP, ATP, 3 phosphoglycerate Grade 12 Biology Unit 2: Metabolic Processes Quiz: Glycolysis Part B: Short Answer Name:______________________________ Date:_______________________________ 16. Place the correct molecule at EACH end of all the side arrows and place the correct name of the enzyme that completes the process. [Hint. Compare the molecule before and after to see what has changed.](10 marks) COOH HC—O—P HOCH2 O=C--O—P HOCH H2C—O—P HC=0 HCOH H2C—O—P COOH C—O—P II CH2 COOH HOC H2C—O—P O=C—O—P HOCH H2C—O—P 17. Carefully, compare the two molecules below and show what changes must occur in the equation for this step in Kreb’s cycle by i) adding the appropriate substances that are added and/or removed, ii) naming the enzymes that must be used iii) naming the original and final molecules (10 Marks)