This quiz works best with JavaScript enabled. Home > Crop Physiology > Plant Research > Crop Physiology – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Crop Physiology Quiz 3 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is significance of transpiration A) Maintenance of turgidity. B) Helps in gaseous exchange. C) Cooling effect for plants. D) All of the above. Show Answer Correct Answer: D) All of the above. 2. A MAJOR CHARACTERISTIC OF MONOCOT ROOT IS THE PRESENCE OF ..... A) SCATTERED VASCULAR BUNDLES. B) VASCULATURE WITHOUT CAMBIUM. C) OPEN VASCULA BUNDLE. D) None of above. Show Answer Correct Answer: B) VASCULATURE WITHOUT CAMBIUM. 3. Which type of transpiration have maximum loss of water (80-90% total water loss) A) Cuticular transpiration. B) Stomatal transpiration. C) Leaf transpiration. D) Guard cell transpiration. Show Answer Correct Answer: B) Stomatal transpiration. 4. What part of the plant does photosynthesis occur? A) Roots. B) Leaves. C) Flower petals. D) Pollen. Show Answer Correct Answer: B) Leaves. 5. What structure helps to anchor the plant in the soil? A) Leaf. B) Flower. C) Stem. D) Root. Show Answer Correct Answer: D) Root. 6. Poison Ivy growing on a tree by touch. A) Gravitropism. B) Phototropism. C) Thigmotropism. D) Hydrotropism. Show Answer Correct Answer: C) Thigmotropism. 7. What are the steps of Respiration? A) Food is used for plant energy, Occurs in all cells, Energy is released, Oxygen is used, Carbon Dioxide is produced, Water is produced, It occurs in light and dark. B) Food is used for plant energy, Energy is released, Occurs in all cells, Oxygen is used, Water is produced, Carbon Dioxide is produced, It occurs in light and dark. C) Food is used for plant energy, Energy is released, Occurs in all cells, Water is produced, Oxygen is used, Carbon Dioxide is produced, It occurs in light and dark. D) None of above. Show Answer Correct Answer: B) Food is used for plant energy, Energy is released, Occurs in all cells, Oxygen is used, Water is produced, Carbon Dioxide is produced, It occurs in light and dark. 8. ..... is a stack of thylakoids A) Granum. B) Stomata. C) Stroma. D) Chloroplast. Show Answer Correct Answer: A) Granum. 9. WHICH OF THE FOLLOWING FACILITATES OPENING OF STOMATAL APERTURE? A) DECREASE IS TURGIDITY OF GUARD CELL. B) RADIAL ORIENTATION OF CELLULOSE CELL WALL OF GUARD CELL. C) CONTRACTION OF OUTER WALL OF GUARD CELL. D) None of above. Show Answer Correct Answer: B) RADIAL ORIENTATION OF CELLULOSE CELL WALL OF GUARD CELL. 10. The process through which plants leaves, stems and roots consume oxygen and give off carbon dioxide is? A) Absorption. B) Translocation. C) Respiration. D) Photosynthesis. Show Answer Correct Answer: C) Respiration. 11. What is the most important life-sustaining process? A) Photosynthesis. B) Transpiration. C) Respiration. D) None of above. Show Answer Correct Answer: A) Photosynthesis. 12. ROOT HAIRS DEVELOP FROM THE REGION OF ..... A) MERISTEMATIC ACTIVITY. B) ROOT CAP. C) MATURATION. D) None of above. Show Answer Correct Answer: C) MATURATION. 13. How is pith and cortex ground tissue different. A) Pith is external to the vascular tissue and cortex is internal to the vascular tissue. B) Pith is internal to the vascular tissueand cortex is external to the vascular tissue. C) Pith is a vascular tissue and cortex is a ground tissue. D) Pith is in the ground and cortex is on the surface. Show Answer Correct Answer: B) Pith is internal to the vascular tissueand cortex is external to the vascular tissue. 14. What is the function of phloem A) To transport food/sugar. B) To transport lignin. C) To transport water. D) None of above. Show Answer Correct Answer: A) To transport food/sugar. 15. The walls of xylem tissue are reinforced with A) Concrete. B) Lignin. C) Starch. D) Glucose. Show Answer Correct Answer: B) Lignin. 16. Where does the Calvin Cycle occur? A) Thylakoid. B) Stroma. C) Lumen. D) Mitochondria. Show Answer Correct Answer: B) Stroma. 17. The study of functions and the complex chemical processes that allow plants to grow is known as A) Plant taxonomy. B) Plant physiology. C) Plant nutrition. D) Photosynthesis. Show Answer Correct Answer: B) Plant physiology. 18. Damaging the bark of a tree is bad for the tree for all the the following reasons EXCEPT ..... A) Bark protects the tree from pathogens. B) Damaged cambium, which is just under the bark, could prevent future growth. C) Doing so could damage the phloem and affect sugar transport. D) Xylem, which is just under the bark, won't be able to transport water. Show Answer Correct Answer: D) Xylem, which is just under the bark, won't be able to transport water. 19. ..... quanta of light is needed for fixation of 6 CO2 molecules. A) 8. B) 12. C) 48. D) 6. Show Answer Correct Answer: C) 48. 20. Photosynthesis will work best in which temperature range A) 50-60 degrees F. B) 60-70 degrees F. C) 65-85 degrees F. D) 85-95 degrees F. Show Answer Correct Answer: C) 65-85 degrees F. ← PreviousNext →Related QuizzesCrop Physiology QuizzesCrop Physiology Quiz 1Crop Physiology Quiz 2Crop Physiology Quiz 4Crop Physiology Quiz 5Crop Physiology Quiz 6 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books