MCQ Chapter 10 Class 7 Science Curiosity NCERT Advertisement Life Processes in Plants 1. What is the energy source used during respiration in plants?GlucoseOxygenCarbon dioxideWaterQuestion 1 of 202. What is produced during plant respiration?Glucose and oxygenCarbon dioxide and waterStarch and chlorophyllWater and sunlightQuestion 2 of 203. Where does respiration occur in plants?Only in leavesOnly in rootsIn all parts of the plantOnly in stemsQuestion 3 of 204. What is the purpose of using lime water in the respiration experiment?To detect oxygenTo detect carbon dioxideTo detect glucoseTo detect waterQuestion 4 of 205. What is the main function of roots in plants?Perform photosynthesisAbsorb water and mineralsStore glucoseExchange gasesQuestion 5 of 206. What happens to a plant in direct sunlight without water?It grows normallyIt produces starchIt may dieIt releases oxygenQuestion 6 of 207. What is the role of glucose produced during photosynthesis?Stored as chlorophyllUsed as an energy sourceTransported through xylemReleased as a gasQuestion 7 of 208. What does the red ink experiment demonstrate?Food transportWater transportGas exchangeStarch productionQuestion 8 of 209. Which part of the leaf does not turn blue-black in the iodine test if kept in the dark?Green patchesNon-green patchesBoth green and non-green patchesOnly the edgesQuestion 9 of 2010. What is the significance of the bottle garden experiment?Shows water transportDemonstrates gas exchange balanceTests starch productionMeasures plant heightQuestion 10 of 2011. What is the primary site for food storage in plants?LeavesRootsStemSeedsQuestion 11 of 2012. Why does the matchstick produce an intense flame in the photosynthesis experiment?Presence of carbon dioxidePresence of oxygenPresence of glucosePresence of waterQuestion 12 of 2013. What is the purpose of using a split cork in the carbon dioxide experiment?To trap oxygenTo allow half the leaf to be testedTo absorb waterTo block sunlightQuestion 13 of 2014. What does the milky lime water in the respiration experiment indicate?Presence of oxygenPresence of carbon dioxidePresence of glucosePresence of waterQuestion 14 of 2015. Which component is NOT essential for photosynthesis?SunlightChlorophyllOxygenCarbon dioxideQuestion 15 of 2016. What is the role of the microscope in the stomata experiment?To measure plant heightTo observe tiny poresTo detect starchTo test water transportQuestion 16 of 2017. What is the significance of the non-green patches in the starch test?They produce more starchThey lack sufficient chlorophyllThey absorb more sunlightThey release oxygenQuestion 17 of 2018. What is the primary function of phloem in plants?Transport waterTransport foodExchange gasesAbsorb mineralsQuestion 18 of 2019. What does the experiment with germinating seeds demonstrate?PhotosynthesisRespirationWater transportStarch productionQuestion 19 of 2020. What is the importance of photosynthesis and respiration in nature?They maintain water balanceThey regulate soil nutrientsThey maintain gas balanceThey increase plant heightQuestion 20 of 20 Loading...
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