Photosynthesis Lab Gizmo Answers 1. Which of the following can be used to measure the rate B. oxygen producof photosynthesis? tion (mL/hr) A. light intensity (%) B. oxygen production (mL/hr) C. temperature D. CO2 level 2. According to the graph below, what temperature will result in the highest rate of photosynthesis? A. 5°C B. 40°C C. 30°C D. 25°C D. 25°C 3. Based on what you have observed in the Gizmo, which of the following chemical equations represents photosynthesis? A. Carbon dioxide plus water yields glucose (sugar) and oxygen. B. Oxygen plus carbon dioxide yields water and glucose. C. Glucose plus oxygen yields carbon dioxide and water. D. Water plus glucose yields oxygen and carbon dioxide. A. Carbon dioxide plus water yields glucose (sugar) and oxygen. B. He should only 4. A scientist wants to determine the best light wavelength for growing plants. He grows plants in four test change the wavegroups as shown in the table below. What, if anything, length of light for was wrong with the experiment? each group. A. He should only grow one plant in each group. B. He should only change the wavelength of light for each group. C. He should add a control group with a CO2 level of zero ppm and a light intensity of zero percent. D. There is nothing wrong with the experiment. 5. If chlorophyll were red instead of green, making plants C. red light red in appearance, which color of light would you ex1/2 pect to produce the LOWEST rate of photosynthesis? A. white light B. blue light C. red light D. green light 2/2