Transportation in Plants Class 8 Welcome to your Transportation in Plants Class 8 1. The age of the tree is found by countingDeselect Answer Phloem rings Xylem rings Parenchyma rings collenchyma rings2. The surface attraction of water by cell wall is calledDeselect Answer Diffusion Imbibition Osmosis Transpiration3. The force of attraction between like molecules is calledDeselect Answer Adhesion Cohesion Capillary force Suction force4. The loss of water in the form of water vapour is calledDeselect Answer Guttation Transpiration Bleeding Translocation5. An example of impermeable membrane isDeselect Answer Cell wall Cell membrane Cellophane Rubber sheet6. The living component of Xylem isDeselect Answer Tracheids Vessels Xylem Parenchyma Xylem fibres7. The process in plants that require energy isDeselect Answer Active transport Imbibition Diffusion Osmosis8. What happens to the leaves if the rate of transpiration is more than the rate of absorption of water?Deselect Answer Wilting Yellowing Turgid No change9. Diffusion of water through semi permeable membrane is calledDeselect Answer Imbibition Osmosis Transpiration Translocation10. A plant cell without nucleus is theDeselect Answer Companion cell Vessel Sieve tube Cell Tracheid11. Lenticels are present inDeselect Answer Stem Root Leaf Flower12. The rate of transpiration decreases if the humidity isDeselect Answer Low Medium High No change13. Macronutrient required for the formation of ChlorophyllDeselect Answer Magnesium Manganese Iron14. Transpiration pull will be maximum under which of the following conditions?Deselect Answer Open stomata, dry atmosphere and moist soil Open stomata, high humid atmosphere and well irrigated soil Open stomata, high humid atmosphere and dry soil Close stomata, dry atmosphere and dry soil15. Food conducting tissue of Plant isDeselect Answer Xylem Phloem Cambium None of the above16. During continuous loss of water in the form of water vapor from the leaves, a suction pressure is created calledDeselect Answer Root pressure Adhesion force Cohesion force Transpiration pull17. An element that is regarded as both macro and micronutrientDeselect Answer Iron Zinc Manganese Copper18. Which of the following is a micronutrient?Deselect Answer Nitrogen Phosphorus Sulphur Manganese19. Transpiration will be reduced due toDeselect Answer Closure of Stomata Shedding of leaves Both the above None of the above20. Transpiration helps plants inDeselect Answer Cooling Ascent of Sap Turgidity of cells All the above21 out of 20Please fill in the comment box below.
