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Biology Test: PhotosynthesisMultiple ChoiceIdentify the choice that best completes the statement or answers the question.____1.The Calvin cycle takes place in thea.stroma.b.photosystems.c.thylakoid membranes.d.chlorophyll molecules.____2.What are the products of the light-dependent reactions?a.oxygen gas and glucoseb.ATP, NADPH, and oxygen gasc.ATP, carbon dioxide gas, and NADPHd.carbon dioxide gas, oxygen gas, and NADPHFigure 8–5____3.In which experimental setup shown above would you expect the Elodea plant inside the test tube to produce the LEAST amount of oxygen?a.Ab.Bc.Cd.D____4.Which of the following is NOT found in the overall reaction for photosynthesis?a.carbon dioxideb.waterc.lightd.nitrogen____5.Which of the following is NOT a step in the light-dependent reactions?a.High-energy electrons move through the electron transport chain.b.Pigments in photosystem II absorb light.c.ATP synthase allows H+ ions to pass through the thylakoid membrane.d.ATP and NADPH are used to produce high-energy sugars.____6.The Calvin cycle is another name for thea.light-independent reactions.b.light-dependent reactions.c.photosynthesis reaction.d.electron transport chain.____7.If you continue to increase the intensity of light that a plant receives, what happens?a.The rate of photosynthesis increases indefinitely with light intensity.b.The rate of photosynthesis decreases indefinitely with light intensity.c.The rate of photosynthesis increases and then levels off.d.The rate of photosynthesis does not change.____8.The products of photosynthesis are thea.products of cellular respiration.b.reactants of cellular respiration.c.products of glycolysis.d.reactants of fermentation.____9.If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars?a.More sugars will be produced.b.No sugars will be produced.c.The same number of sugars will be produced but without carbon dioxide.d.Fewer sugars will be produced at first, but then the plant will recover.____10.How does the Calvin cycle differ from the light-dependent reactions?a.It takes place in the stroma.b.It takes place in chloroplasts.c.It requires light.d.It requires water.____11.Where do the light-dependent reactions take place?a.in the stroma of the chloroplastb.within the mitochondria membranesc.within the thylakoid membranesd.in the outer membrane of the chloroplasts____12.Unlike photosynthesis, cellular respiration occurs ina.animal cells only.b.plant cells only.c.prokaryotic cells only.d.all eukaryotic cells.____13.A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probablya.oxygen.b.carbon dioxide.c.ATP.d.glucose.A. B. Figure 8–4____14.In Figure 8–4, why might the candle in jar A burn longer than the candle in jar B?a.Carbon dioxide produced by the plant allows the candle to burn longer.b.Chlorophyll produced by the plant allows the candle to burn longer.c.Glucose produced by the plant allows the candle to burn longer.d.Oxygen produced by the plant allows the candle to burn longer.____15.What is a product of the Calvin cycle?a.oxygen gasb.ATPc.high-energy sugarsd.carbon dioxide gas____16.Plants cannot release energy from glucose usinga.glycolysis.b.photosynthesis.c.the Krebs cycle.d.cellular respiration.____17.Where are photosystems I and II found?a.in the stromab.in the thylakoid membranec.in the Calvin cycled.in the cell membrane____18.Which of the following activities happens within the stroma?a.Photosystem I absorbs light.b.ATP synthase produces ATP.c.The Calvin cycle produces sugars.d.Electrons move through the electron transport chain.Modified True/FalseIndicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.____1.The Calvin cycle provides cells with compounds that can store energy for more than a few minutes. _____________________________2.ATP synthase changes ADP to ATP when light energy passes through it. _____________________________3.The six carbon atoms needed to make a molecule of glucose come from oxygen in the atmosphere. _____________________________4.During the light-dependent reactions, plants use the energy in ATP and NADPH to build high-energy sugars. _____________________________5.The light-dependent reactions supply the Calvin cycle with CO2 and ATP. _____________________________6.In an oak tree, carbohydrates are produced by the process of photosynthesis, and cellular respiration is used to convert the chemical energy in the carbohydrates to ATP. _________________________CompletionComplete each statement.1.In many plants, the rate of photosynthesis ____________________ when the weather becomes very cold.2.A membrane protein called _____________________ allows H+ ions to pass through the thylakoid membrane and into the stroma.3.Cellular respiration in nearly all organisms depends on autotrophs performing the process of _________________________.Figure 8–74.Photosystems I and II are found in the structure labeled ____________________ in Figure 8–7.5.Plants produce _________________________ during the first stage of photosynthesis and because it is not used or needed in the second stage, it is considered to be a byproduct.6.During the Calvin cycle, molecules of ____________________ supply the carbon component of carbohydrates.Short Answer1.Write the overall equation for photosynthesis in both symbols and words.2.Describe the relationship between the light-dependent and the light-independent reactions.3.What are three factors that affect the rate of photosynthesis? ................
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