Photosynthesis Questions C. 2. Chloro means- and plast-. Thylakoid. 3. Where does photosynthesis occur? In the c which contains chlorophyll.

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1 Photosynthesis Name- Date- Per. Station 1 Photosynthesis Questions C 1. Photo means - and synthesis Chloro means- and plast-. Thylakoid. 3. Where does photosynthesis occur? In the c which contains chlorophyll. 4. Why are chloroplasts located near the upper epidermis in a leaf? 5. The formula for photosynthesis is - 6. In the lab Photosynthesis was about factors that affect the rate of photosynthesis. Photosynthesis occurs in the of plant cells. Plant cell require CO2 + and energy from the and produce C6H12O6 ( ) and. In the lab it was discovered that the rate of was influenced by the amounts of CO2, presence of and color of light. Word bank: use the following terms to fill in the blanks, then copy into your notebook. ( light,h2o, glucose, photosynthesis, chloroplast, sun, O2 ) 7. The equation shows a summary of the chemical reactions of photosynthesis. 6 CO2 + 6 H20 + Energy C6 H12O6 + O2 What is missing from the product side of the equation? a. 6 carbon atoms b. 12 hydrogen atoms c. 6 oxygen atoms d. 2 water molecules 8. The process of photosynthesis ultimately converts light energy into a. mechanical energy b. nuclear energy c. chemical energy d. electrical energy 9. Photosynthesis is important for almost all life on Earth because it a. uses simple elements b. is responsible for most decay c. produces oxygen d. releases usable forms of nitrogen 10. The by product of the light independent (calvin cycle) isa. ATP b. Glucose c. Water d. d. Oxygen.

2 Bubbles per. minute Station # 3 Photosynthesis in Elodea Plants * Count the number of bubbles that are produced for (3) 1 minute trials and then calculate the average. Trial 1 bubbles Trial 2 bubbles Trial 3 bubbles Ave. = Bubbles 1. The elodea plant takes in and and produces and. Why was baking soda put into the test tube? (Sodium Bicarbonate NaHCO 3 ) 2. What is the dependent variable in the experiment to the right? a. type of plant b. color of the light used c. amount of oxygen bubbles produced d. amount of water. Use the Data in the chart below to complete the graph to the right. Oxygen Production Distance from Light Bubbled Produces per Minute How does the distance of the light affect photosynthesis? 5 10 Distance from light 4. The graph shows how dissolved O2 and CO2 levels changed in a pond over a 24-hour period. What caused the decrease in O2 concentration during the night? a. Increased evaporation b. Decreased photosynthesis c. Increased respiration d. Decreased temperatures 5. Sienna is conducting an experiment. She plants five seedlings in a sealed container. She pumps into the sealed container a mixture of 50 % carbon dioxide (CO2) and 50% oxygen gas (O2). She allows the plants to grow for one week. After one week, she takes a sample of gas from the container and analyzes it. What would Sienna most likely find? a. The concentration of oxygen and carbon dioxide has both increased. b. The concentration of oxygen and carbon dioxide has both decreased. c. The concentration of oxygen has decrease, while the concentration of carbon dioxide has increased. d. The concentration of oxygen has increased, while the concentration of carbon dioxide has decreased.

3 Station # 2 Photosynthesis in a Leaf 2. Label and Color the Plant Cell below. 1. Fill in the missing terms below. Chloroplast (green), Cell Wall (yellow), Vacuole (blue) Mitochondria (red, Nucleus (orange). 3. Since it has a nucleus it is a (prokaryote, eukaryote) Word Bank A. Chlorophyll B. C 6H 12O 6 Glucose C. (O 2) Oxygen D. Solar E. Starch F. CO 2 (Carbon Dioxide) G. H 20 (Water) 4. Algae and multicellular plants are autotrophs because they a. absorb nutrients from soil b. capture sunlight to produce sugars c. break down starches to glucose d. decompose dead organisms 5. Which of the following is most effective in helping rain forest plants trap sunlight so that light energy can be converted to chemical energy? a. Large root size b. Small seed size c. Large leaf size d. Small stem 6. Plants store carbohydrates in the form ofa. amino acids b. fatty acids c. starch d. nucleic acids 7. Which gas is removed from the atmosphere during photosynthesis? a. hydrogen b. oxygen c. nitrogen d. carbon dioxide 8. Which of the following structure is where photosynthesis occurs in the cell below? a. nucleus b. chloroplast c. mitochondria d. endoplasmic reticulum 9. If a plant died from lack of food, which structure is most likely missing or damaged? a. flower b. root c. stem d. leaves 10. Most of the food and oxygen in the environment is produced by the action ofa. saprophytic bacteria b. heterotrophic bacteria c. aerobic protozoans d. autotrophic organisms 11. Mike has four aquatic plants of the same size and the same species. He submerges the plants in a separate beaker filled with 200 ml of water. He then sets each beaker under a different intensity of light. Mike observes that, of the four plants, the plant in the beaker under the most intense light gives off the most gas bubbles in a 20 minute period. Which of the following statements best explains Mike s observations? a. Cells decompose most quickly under the most intense light. b. Water evaporates from plants faster under the most intense light. c. Photosynthesis occurs at the highest rate under the most intense light. d. Gases in the leaves of plants expand most under the most intense light.

4 Station 4 Gizmo Photosynthesis Experiment with the vertical Temperature slider (upper left) and the CO2 level slider. 1. How does temperature affect oxygen production? 2. How does CO2 level affect oxygen production? 3. How does O2 production relate to the rate of photosynthesis? 4. Use the Gizmo to find the ideal conditions for photosynthesis. Use any method you like. When you think you have the answer, list the conditions below. Temperature Light intensity CO2 level Oxygen production 5. Which colors were absorbed best by the plant? worst? 6. The graph represents the absorption spectrum of chlorophyll. The graph indicates that the energy used in photosynthesis is most likely obtained from which regions of the spectrum? a. yellow and orange red b. violet blue and green c. orange red and violet blue d. green and yellow 7. Which graph (A) shows the effect of temperature on the rate of photosynthesis? A X B 8. The graph (B) shows how the rate of photosynthesis in a plant varies with light intensity at two different carbon dioxide concentrations. The temperature is kept constant at 20 C. Which factor is limiting the rate of photosynthesis at point X? a. carbon dioxide concentration GIZMO- QUIZ b. chlorophyll availability c. light intensity = % d. water availability

5 Write after Cellular Respiration - Notes In the Cellular Respiration lab was about how anaerobic respiration ( ) which takes place in the cytosol, produced acid which caused the muscles to fatigue and. Aerobic respiration takes place in the. In the mitochondria the Krebs cycle and Transport Chain are responsible for the release of and H 20. respiration (with oxygen) produces ATP and anaerobic ATP. is a source of energy produced through cellular. Word bank: use the following terms to fill in the blanks then copy into your notebook. (36-38, cramp, mitochondria, respiration,co 2,, glycolysis, ATP, lactic, electron, Aerobic,2) Cellular Respiration 8. The processes of photosynthesis and respiration can be thought of as a cycle because- a. one is used only by plants and the other is used only by animals b. both give off oxygen to be used by animals c. the products of one are used as the raw materials of the other d. they both have the same purpose

6 Four tubes, A, B, C and D are left in sunlight for one hour. The bicarbonate indicator solution in each tube is red at the start of the experiment. Bicarbonate indicator solution stays red if there is no change in carbon dioxide concentration. The indicator goes yellow if carbon dioxide concentration increases and purple if the carbon dioxide concentration decreases. In which tube does the color change to purple? A. A B. B C. C D. D 8. The diagram to the right is a. Ribose b. ADP c. ATP d. DNA 9. The by product of the light independent (calvin cycle) isa. ATP b. Glucose c. Water d. Oxygen 9. The picture models a cellular metabolic process. The main purpose of this process is to produce a. usable energy b. ADP c. phosphate groups d. H2O