NCERT/Class 10/Science/Life Processes

Life Processes

Class 10 · Science

150 questions50 easy50 medium50 hard

Sample Questions

Q1.What is anaerobic respiration?

  • ABreakdown of glucose without the use of oxygen
  • BBreakdown of glucose with oxygen
  • CRespiration in the presence of air
  • DRespiration only in humans

Q2.How does the concept of homeostasis relate to the role of the kidney in maintaining blood composition?

  • AKidneys maintain homeostasis by constantly adjusting filtration and reabsorption rates to keep blood pH, osmolarity, glucose, urea and ion concentrations within narrow optimal ranges
  • BKidneys only remove urea and do not contribute to homeostasis of other blood components
  • CHomeostasis in blood is maintained only by the liver and not the kidneys
  • DKidneys maintain homeostasis only during disease states, not in healthy individuals

Q3.What does the iodine test for starch demonstrate about photosynthesis?

  • AIt shows that only the green (chlorophyll-containing) parts of a variegated leaf store starch, proving chlorophyll is essential for photosynthesis
  • BIt shows that all parts of the leaf produce starch equally
  • CIt shows that starch is produced in roots, not leaves
  • DIt shows that iodine is needed for photosynthesis

Q4.Why would the survival of warm-blooded animals be impossible with a three-chambered heart?

  • AMixing of oxygenated and deoxygenated blood would reduce oxygen supply, making it impossible to sustain the high metabolic rate needed to maintain constant body temperature
  • BA three-chambered heart pumps blood too quickly for warm-blooded animals
  • CThree-chambered hearts cannot pump blood to the lungs
  • DWarm-blooded animals need a larger heart, not more chambers

Q5.Critically evaluate why molecular movement is considered the most fundamental criterion for life.

  • AMolecular movements maintain ordered cellular structures against entropy, repair damage, and power all life processes — their absence means breakdown of life's organisation
  • BMolecular movement is just one of many equally important criteria for life
  • COnly macroscopic movement like growth distinguishes living from non-living
  • DMolecular movement is not necessary; chemical composition alone defines life

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
Create a test to practice all 150 questions →

Concepts Covered

ATPATP SynthesisATP YieldAbsorptionAcid ProductionActive TransportAerobic RespirationAirwayAlimentary CanalAlveoliAmino AcidsAmmoniaAmoebaAnaemiaAnaerobic FermentationAnaerobic RespirationAquatic RespirationArrhythmiaArteriesArteriolesAtriaAutotrophic NutritionAutotrophsBacteriaBileBile DuctBloodBlood ClottingBlood CompositionBlood FlowBlood PressureBlood VesselsBlood VolumeBreathingBreathing MechanismBreathing RateCAM MetabolismCO2CO2 ExchangeCO2 TransportCalvin CycleCapillariesCarbon CycleCardiac OutputCartilage RingsCatalystsCell BiologyCell SizeCellular EnergyCellular OrganisationCellular RespirationCelluloseChlorophyllChloroplastsCiliaCirculatory SystemCohesionCohesion-TensionCompanion CellsComparisonComparison with AnimalsComplete DigestionConcentration GradientControlled ExperimentCounter-current ExchangeCuscutaCytoplasmDead CellsDental CariesDeoxygenated BloodDesert PlantsDiabetesDiaphragmDiastolic PressureDiffusionDigestionDigestion ProductsDigestive SystemDissolved OxygenDivision of LabourDouble CirculationDouble PumpEcologyEmulsificationEndosymbiotic TheoryEndothermic ReactionsEndothermyEnergyEnergy CurrencyEnergy EfficiencyEnergy ReleaseEnergy StorageEnergy TransferEntropyEnzymesEvolutionEvolutionary AdaptationEvolutionary OptimisationExcretionExercise PhysiologyExperimental DesignExternal DigestionFat DigestionFat TransportFatty AcidsFermentationFiltrationFish GillsFish HeartFish RespirationFluid BalanceFood ChainFood ChainsFood TransportFood VacuoleFungiGas ExchangeGaseous ExchangeGastric JuiceGastric UlcersGillsGlomerular FiltrationGlucoseGlucose MetabolismGlucose ReabsorptionGlycogenGlycolysisGlycosuriaGuard CellsHaemoglobinHeartHeart ChambersHeart DesignHeart FunctionHeart RhythmHeart StructureHeterotrophic NutritionHeterotrophsHomeostasisHydrochloric AcidHypertensionInsulinIodine TestIon UptakeKidneyKidney EvolutionKidneysKrebs CycleLactic AcidLarge IntestineLeaf FallLeft VentricleLifeLife ProcessesLight SaturationLimiting FactorsLipaseLiverLiving vs Non-livingLung StructureLungsLymphMaintenance FunctionsMammal HeartMaterial ExchangeMetabolic WasteMetabolismMineral UptakeMitochondriaMolecular MovementMucusMulticellular OrganismsMuscle CrampsMusclesNephronNephron DesignNephronsNitratesNitrogenNitrogen CycleNitrogen ExcretionNitrogen FixationNutritionOesophagusOrgan SpecialisationOsmoregulationOsmosisOsmotic DiuresisOsmotic PressureOxygenOxygen DebtOxygen EfficiencyOxygen ExtractionOxygen TransportOxygenated BloodOxygenationPancreasPancreatic JuiceParamoeciumParasitic NutritionPassive TransportPepsinPeristalsisPhloemPhotosynthesisPhotosynthesis By-productPhotosynthesis RatePlant BiologyPlant Energy NeedsPlant ExcretionPlant MetabolismPlant NutritionPlant PhysiologyPlant TransportPlant Water TransportPlantsPlaquePlasmaPlateletsPotassium HydroxidePrimary ProducersProductsProtein DigestionProteinsPseudopodiaPulmonary CirculationReabsorptionResidual VolumeRespirationRespiratory PigmentRight VentricleRoot PressureRoot Water AbsorptionSalivaSalivary AmylaseSaprotrophic NutritionSelective ConservationSelective ReabsorptionSelf-digestionSieve TubesSingle vs Double CirculationSinoatrial NodeSmall IntestineSodiumSolar EnergySphincterSphygmomanometerStarchStomachStomataStructural SpecialisationSunlightSurface AreaSurface Area to Volume RatioSystemic CirculationSystemic vs Pulmonary CirculationSystolic PressureTerrestrial AdaptationThermodynamicsThermoregulationTooth EnamelTracheaTranslocationTranspirationTranspiration PullTransportTransport DirectionTransport SystemsTrophic LevelsTubular ReabsorptionUltrafiltrationUnidirectional vs BidirectionalUreaUrineUrine FormationValvesVeinsVentriclesVertebrate EvolutionVilliVirusesWarm-bloodedWarm-blooded AnimalsWater AbsorptionWater ConservationWater PotentialWater TransportXylemXylem TransportYeast

Ready to practice?

Create a timed test from 150 questions in Life Processes. Pick your difficulty, get instant scores.

Start Practice Test