121. What causes R.Q. to vary

A Resp. Substrate
B Light & O2
C Respi. Product
D Temperature
Answer :   Resp. Substrate
Discuss Question

122. DCMU

A Inhibits PS-1
B Inhibits PS-II
C Destroy chloroplast
D Inhi bits oxidative phosphorylation
Answer :   Inhibits PS-II
Discuss Question

123. The chief enzyme found in yeast cell is

A Invertase
B Maltase
C Zymase
D Amylase
Answer :   Zymase
Discuss Question

124. For retting of jute, the fermentting mircrobe used is

A Helicobactor pylori
B Methophilic bacteria
C Streptococcus lactin
D Butyric acide bacteria
Answer :   Butyric acide bacteria
Discuss Question

125. Hills reaction compeltes in

A Light
B Dark
C A and B both
D None of the above
Answer :   Light
Discuss Question

126. Respiratory quotient of which diet is less than unity

A Carbohydrate
B Fats
C Organic acid
D Sugar
Answer :   Fats
Discuss Question

127. Respiratory quoteint of carbohydrate is

A Unitiy
B Greater than unity
C Less than units
D Equal to five
Answer :   Unitiy
Discuss Question

128. At which pH enzymes of lysosomes are usually active

A PH 5
B PH 7
C PH 8
D In any pH
Answer :   PH 5
Discuss Question

129. A very important feature of respiration is that

A It liberates energy
B It provides O2
C Utilize CO2
D Synthesize complex compounds
Answer :   It liberates energy
Discuss Question

130. NH3 release from

A Photorespiration
B Dark respiration
C CAM
D All of the above
Answer :   Photorespiration
Discuss Question

Practice More MCQ Question on Biology Section

BotanyThe Living WorldBiological ClassificationPlant KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsCell: The Unit of LifeCell Cycle and Cell DivisonTransport in PlantsMineral NutritionPhotosynthesis in Higher PlantsRespiration in PlantsPlant Growth and DevelopmentReproduction in OrganismsSexual Reproduction in Flowering PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceStrategies for Enhancement in Food ProductionMicrobes in Human WelfareOrganisms and PopulationsEcosystemBiodiversity and ConservationEnvironmental IssuesBotany Miscellaneous
ZoologyAnimal KingdomStructural Organisation in AnimalsBiomoleculesDigestion and AbsorptionBreathing and Exchange of GasesBody Fluids and CirculationExcretory Products and Their EliminationLocomotion and MovementNeural Control and CoordinationChemical Coordination and IntegrationHuman ReproductionReproductive HealthEvolutionHuman Health and DiseasesBiotechnology: Principles and ProcessesBiotechnology and its ApplicationsZoology Miscellaneous