Lab Exam 2 Review - B iology 1103 Laboratory Exam 2 Review...

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Biology 1103 Laboratory Exam 2 Review Worksheet Answer Key Part I: Enzyme Kinetics 1. Reactants; products 2. Endergonic 3. Exergonic 4. Activation Energy 5. Enzymes 6. Active site 7. pH; temperature 8. Catalase; yeast 9. Hydrogen peroxide; water; oxygen; catalase 10. pH: 7.5-8 11. inverse of time or 1/t 12. Part I I: Photosynthesis 1. Photosynthesis 2. CO 2 ; sunlight 3. Chloroplasts 4. Pigments 5. Chlorophyll a; chlorophyll b; xanthophylls; carotene 6. Chromatography 7. Higher up 8. Iodine; black 9. CO 2 (carbon dioxide)
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10. O 2 (oxygen) bubbles 11. CO 2 (carbon dioxide) 12.pH 13. yellow (because CO 2 will make a solution more acidic) 14. It turned back to red, because the CO 2 that was originally added to the beaker, by blowing in the straw was utilized by the plant to perform photosynthesis. As the plant used (and removed) the CO 2 , the acidity of the solution decreased, which caused the pH indicator (phenol red) to turn back to red. Part I I I: Respiration 1. Respiration 2. Aerobic 3. Anaerobic fermentation 4. Lactic acid, alcohol 5. Aerobic respiration 6. CO 2 (carbon dioxide) 7. a.) respiration b.) beans c.) the production of CO 2 d.) We used Phenol red to measure the production of CO 2 by beans. Phenol red (pH indicator) turns yellow when CO 2 is dissolved in it (CO 2 makes solutions more acidic). By keeping the beans in a closed container we were able to trap the CO 2 gas
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Lab Exam 2 Review - B iology 1103 Laboratory Exam 2 Review...

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