MCQ Chapter 9 Class 7 Science Curiosity NCERT Advertisement Life Processes in Animals 1. Which part of the alimentary canal stores semi-solid waste before egestion?StomachSmall intestineRectumOesophagusQuestion 1 of 202. What helps birds break down food in their digestive system?TeethGizzardRumenVilliQuestion 2 of 203. Why is the large intestine called "large" despite being shorter than the small intestine?It is longerIt is widerIt absorbs more nutrientsIt has more villiQuestion 3 of 204. What type of food is recommended to maintain a healthy large intestine?Sugary foodsFibre-rich foodsFatty foodsProcessed foodsQuestion 4 of 205. What is the role of nasal passages in breathing?Exchange gasesTrap dust and dirtPump bloodBreak down foodQuestion 5 of 206. Which animals use gills for breathing?BirdsFishFrogsEarthwormsQuestion 6 of 207. What is the semi-liquid mass formed in the stomach called?StoolChymeBileMucusQuestion 7 of 208. How do amphibians like frogs breathe when in water?Through lungsThrough gillsThrough skinThrough nostrilsQuestion 8 of 209. What indicates the presence of starch in the iodine test?Red colorBlue-black colorNo color changeMilky colorQuestion 9 of 2010. Which system transports nutrients and oxygen to all parts of the body?Digestive systemRespiratory systemCirculatory systemExcretory systemQuestion 10 of 2011. What is the role of acid in the stomach?Breaks down carbohydratesKills harmful bacteria and aids protein digestionAbsorbs waterNeutralizes bileQuestion 11 of 2012. What is the approximate length of the large intestine?6 metres1.5 metres3 metres0.5 metresQuestion 12 of 2013. Which part of the respiratory system divides into smaller branches ending in alveoli?NostrilsWindpipeDiaphragmRib cageQuestion 13 of 2014. What do the balloons represent in the breathing model experiment?DiaphragmLungsRib cageWindpipeQuestion 14 of 2015. Why is breathing through the nose recommended?It produces mucusIt filters dust and dirtIt absorbs nutrientsIt releases carbon dioxideQuestion 15 of 2016. What is the benefit of fermented foods like curd for digestion?Increase starch contentSupport healthy bacteria in the large intestineNeutralize stomach acidBreak down proteinsQuestion 16 of 2017. What is the process called when cows bring back partially digested food to chew again?PeristalsisRuminationAbsorptionEgestionQuestion 17 of 2018. What happens to the ribs during exhalation?Move upward and outwardMove downward and inwardStay stillExpand fullyQuestion 18 of 2019. Which practice is recommended for maintaining oral hygiene?Eating sugary foodsBrushing teeth twice a dayAvoiding fibre-rich foodsDrinking soda after mealsQuestion 19 of 2020. What is the word equation for respiration?Glucose + Oxygen → Carbon dioxide + Water + EnergyGlucose + Carbon dioxide → Oxygen + WaterOxygen + Water → Glucose + EnergyGlucose + Nitrogen → Carbon dioxide + EnergyQuestion 20 of 20 Loading...
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