Leaving Certificate Biology Transport & Gas Exchange in Plants 2 iQuiz SECOND Press the F5 Key to Begin, Then click on this Blue Box FIRST In PowerPoint.

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Leaving Certificate Biology Transport & Gas Exchange in Plants 2 iQuiz SECOND Press the F5 Key to Begin, Then click on this Blue Box FIRST In PowerPoint 2007 if you see a Security Warning click HERE on Options… and then click on  Enable this content

Through which of the following will carbon dioxide diffuse into a leaf at the fastest rate? Stomata Guard cellsCuticle Epidermis

Which of the following conditions is the only one which could bring about a higher rate of transpiration? Closing the stomata A cold atmosphere A dry atmosphere A calm day

Through which of the following does most water reach the cells of the leaf? The phloemThe xylem The stomataThe epidermis

The loss of water vapour from the leaf of a plant is known as … EvaporationTranspiration RespirationTranslocation

Which of the following is not involved in transpiration? HumidityTemperature Root pressureCondensation

Two vascular tissues found in flowering plants are … Phloem & GroundXylem & Phloem Xylem & CortexPhloem & Dermal

Tissues involved in the transport of substances, i.e. xylem and phloem in plants, and blood in animals are referred to as … Internal tissueTransport tissue Vascular tissueNone of these

The walls of xylem vessels are reinforced with … Protein fibresLignin CelluloseMyosin

What is the point of entry of carbon dioxide to a leaf? StomataGuard cells Through veins of leaf Via the xylem

Name the tube-like tissue found in the stem in which water moves through the plant. PhloemCambium XylemMeristem

The loss of oxygen from the leaves of a green plant in daylight is best described as … TranspirationExcretion NutritionRespiration

Which of the following processes can be investigated using dry cobalt chloride paper? PhototropismOsmosis Water uptakeTranspiration

Name the process by which the gases move in or out of the leaf. OsmosisDiffusion Active transportNone of these

What term is given to the apertures in stems that are equivalent to the stomata in leaves? LamellaeLaminae LenticelsLacteals

Strong forces of attraction exist between water molecules, which help in transpiration. What are these forces called? AdhesiveCohesive ConsistentBonding

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