10/05/2020Transport in Plants(Senior Class Biology Study by Topics) 0Comments by Gate Academy Welcome to your Transport in Plants(Senior Class Biology Study by Topics) NAME EMAIL PHONE NUMBER 1. The continuous column of water in vessel and tracheids during the ascent of sap does not usually get broken because of:Transpirational pullCohesion and adhesionWeak gravitational pullLignified thick walls2. Guard cells help in:GuttationFighting against infectionProtection against grazingTranspiration3. Xylem is the plant structure that provides which of the following functions?Transport of water and minerals from roots to the stemAutomatic response to changes in its environmentTransport of sugar from the leaves to the rootsProduction of gametes necessary for reproduction4. Cohesion tension theory operates in _______.Passive absorptionBoth 1 and 2Active absorptionNone of these5. Cohesion means...Water molecules tend to attract to each other, sticking togetherWater molecules tend to stick to the inside of the xylem vesselWater molecules tend to slide down the xylem vessel6. The main plant hormone involved in phototropism is ............tuxinauxinluxin7. Root hair cells take in water molecules from the air.FalseTrue8. Plants release Oxygen during the night and Carbon Dioxide during the day.FalseTrue9. Cactus roots are near the surface to absorb waterTrueFalse10. The primary purpose of root hairs is toIncrease absorption of sugars.Increase absorption of water.Anchor the plant to the soil.Fight off infections.11. Water moves throughout a plant throughPhloem tissue.Xylem tissue.Cork cambium.Casparian strip12. The phytochrome system controls photoperiodicity in plants. The diagram describes the following exceptIn the morning plants will have more PfrIn the morning plants will have more PrDuring the night Pfr is converted to Pr.13. Which is made of dead cells?PhloemXylem14. Match the vascular bundle, Phloem with its transported substancesSugars, Metabolic productsWater, dissolved minerals15. Supply the number of the part of the root which increases the total absorption surface of the root641216. Which factor affects transpiration?Wind velocityAll of the aboveTemperatureHumidity17. During transpiration, water moves through a plant and moves out into the atmosphere through the leaves. Transpiration is the result of the interaction of which two parts of a plant?Root and Vascular tissueStomata and Vascular tissueAnthers and RootsStomata and Stamen18. Sugar movement through a plant is best described as going from a _____________ to a ______________.Sink; sourceHypotonic environment; isotonic environmentSource; sinkIsotonic environment; hypertonic environment19. Which of these is a mutualistic association of plant roots and fungi?HyphaeLichensMycorrhizaeMushrooms20. Xylem tissue doesn't carry...WaterInorganic substancesOrganic nutrient21. What is the role of the fibres?Support vesselsPacking tissueTransport water22. Match the vascular bundle, Xylem with its transported substances Sugars, Metabollic productsWater, dissolved minerals23. Which of these is a mutualistic association of plant roots and fungi?MushroomsHyphaeLichensMycorrhizae24. Stomata open and close in response to Water being pumped in and out of guard cells.The lack of available sunlight during the night.Crystal formation in the plant due to excess glucoseStimulation by auxins producing rapid growth.25. Water and minerals move through the xylem from the roots to the top of the plant byDiffusionOsmosisPressureEquilibrium26 out of 25Time is Up!
