Question

Leaves which appear wilted in the day time recover at night because

A. Light is essential for photo synthesis
B. The stomata close down , temperature decrease, transpiration is reduced and the plant is able to absorb more form the soil  
C. Respiration and translocation of organic substance both increases
D. The plant is sleeping because of dark conditions
Answer :   The stomata close down , temperature decrease, transpiration is reduced and the plant is able to absorb more form the soil

Releted MCQ Question on
Botany >> Transport in Plants

Releted Question 1

The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is

A. Root pressure
B. Imbibition
C. Plasmolysis
D. Transpiration
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Releted Question 2

Which of the following is not a feature of active transport of solutes in plants ?

A. Requires ATP
B. Occurs against concentration gradient
C. Non-selective
D. Occurs through membranes
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Releted Question 3

What will be the direction of flow of water when a plant cell is placed in a hypotonic solution ?

A. No flow of water in any direction
B. Water will flow in both directions
C. Water will flow out of the cell
D. Water will flow into the cell
View Answer
Releted Question 4

The main difference between active and passive transport across cell membrane is :

A. active transport occurs more rapidly than passive transport
B. passive transport is non-selective whereas active transport is selective
C. passive transport requires a concentration gradient across a biological membrane whereas active transport requires energy to move solutes
D. passive transport is confined to anionic carrier proteins whereas active transport is confined to cationic channel proteins
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Transport in Plants

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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