Photosynthesis and CellularVersión en línea Photosynthesis and Cellular Respiration por Samantha Nicole Villamin 1 1. Which structure makes plants capable of producing their food? a A. A b B. B c C. C d D. D 2 2. What is the function of the structure where the arrow is pointing on the diagram below? a A. supplies energy to the stomata b B. absorbs carbon dioxide from the atmosphere c C. controls photosynthesis by controlling the amount of chlorophyll in plants d D. regulates the rate of transpiration by opening and closing the stomata 3 3. Which best describes light-independent reactions? a A. They create energy-rich ATP and NADPH b B. They are the first phase of photosynthesis c C. They use carbon dioxide to make proteins d D. They utilize the energy stored in ATP and NADPH 4 4. What is TRUE about the light-dependent reaction? (Choose 2) Choose one or more answers a I. Glucose is produced. Reduced NADP is oxidized b II. ATP and NADPH are produced. c III. This occurs in the thylakoid of the chloroplast. 5 5. Which is the correct observation from the experimental set-up below? a A. The plant is slowly increasing in length. b B. The plant is slowly wilting in the absence of its roots c C. From the cut ends of the plant, new leaves are growing. d D. From the cut ends of the plant, some bubbles are coming out 6 6. What is being proven in this experiment? a A. Gases are produced during fermentation. b B. Oxygen is produced during photosynthesis. c C. Glucose is converted to energy during glycolysis. d D. Light can cause water to become warm and produce gases. 7 In this experiment, the plant is de-starched by putting it in darkness for two days. A wide-mouthed bottle is filled partly with a strong solution of caustic potash and a split cork is fitted into its mouth. Half the portion of the leaf of the de-starched plant is inserted into the bottle through the split cork. The whole set-up is placed under sunlight after applying grease on the upper portion of the split cork. The leaf is tested for the presence of starch after 10 hours. a Proceed to next question 8 7. What is the purpose of putting the plant in darkness for two days? (Use previous page image as reference) a A. To test if it will die. b B. To remove excess water in it c C. To remove starch on its leaves. d D. To test if the leaves will change in color. 9 8. What is the purpose of inserting half of the leaf of the plant inside the bottle? (Use the image again for reference) a A. So that only half of the leaf will receive oxygen. b B. So that only half of the leaf will receive carbon dioxide. c C. So that only half of the leaf will be exposed to sunlight. d D. To protect the other half of the leaf from harmful chemicals in the air. 10 9. Which hypothesis is being tested in this experiment? (Use the image for reference) a A. Plants will die without roots. b B. Carbon dioxide is needed for plants to make food. c C. Oxygen is important for photosynthesis to take place d D. Plants cannot undergo respiration in the absence of oxygen. 11 10. Which of the following statements are TRUE about cellular respiration? a A. I. Cellular respiration is the process by which food molecules are broken down to release energy. b B. Most of the reactions of cellular respiration take place in the mitochondria of the cell. c C. The reactants of cellular respiration are water, carbon dioxide, and energy. d D. The products of cellular respiration are oxygen and glucose.
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