This quiz works best with JavaScript enabled. Home > Crop Physiology > Crop Physiology – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Crop Physiology Quiz 7 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What occurs in the Calvin Cycle of photosynthesis? A) Nothing happens there is no energy. B) Glucose is synthesized from CO2. C) Oxygen is being converted into sugar. D) Energy is generated in the form of ATP. Show Answer Correct Answer: B) Glucose is synthesized from CO2. 2. Which structure provides protection to the plant cell and gives it its shape? A) Plasma membrane. B) Vacuole. C) Cell wall. D) Endoplasmic reticulum. Show Answer Correct Answer: C) Cell wall. 3. Which structure is made of mature, living, fully functioning cells? A) Vessel elements of xylem. B) Sieve tube cells of xylem. C) Tracheid cells of phloem. D) Companion cells of phloem. Show Answer Correct Answer: D) Companion cells of phloem. 4. Seed dormancy is due to the: A) Ethylene. B) Abscisic acid. C) IAA. D) Starch. Show Answer Correct Answer: B) Abscisic acid. 5. Which layer of cells in the leaf conducts the majority of photosynthesis? A) Root cells. B) Pallisade. C) Spongy mesophyll. D) Guard cells. Show Answer Correct Answer: B) Pallisade. 6. 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. 7. After a period of heavy rainfall, how would plants remove excess water? A) Produce more seeds. B) Make more food. C) Drop their leaves. D) Open their stomata. Show Answer Correct Answer: D) Open their stomata. 8. Photosynthesis is a ..... process A) Catabolic. B) Anabolic. C) Exothermic. D) None of the above. Show Answer Correct Answer: B) Anabolic. 9. What is the definition of a Long day plant? A) Plants that require long nights to flower. B) Plants that require short nights to flower. C) Plants that don't require a specific photoperiod. D) Tiny openings in plant epidermis for gas exchange. Show Answer Correct Answer: B) Plants that require short nights to flower. 10. 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. 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. What tissue type defends the plant from physical damage and pathogens? A) Ground tissue. B) Protective tissue. C) Vascular tissue. D) Dermal tissue. Show Answer Correct Answer: D) Dermal tissue. 13. Bulbs commonly have to undergo a period of cold to flower or germinate. This is called what? A) Photoperiod. B) Transpiration. C) Vernalization. D) None of the above. Show Answer Correct Answer: C) Vernalization. 14. 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. 15. Vascular tissue not only transports material it also A) Protects the plant. B) Supports the plant structurally. C) Transports minerals. D) Transports energy. Show Answer Correct Answer: B) Supports the plant structurally. 16. This is plant tissue that conducts nutrients (food) through the plant. A) Xylem. B) Phloem. C) Photosynthesis. D) DNA. Show Answer Correct Answer: B) Phloem. 17. How does Photosystem II create O2? A) It reduces H2O into H+ and O. B) O2 is actually generated in the Calvin Cycle. C) It Oxidizes H2O into H+ and O. D) Oxygen atoms are assembled in Photosystem II. Show Answer Correct Answer: C) It Oxidizes H2O into H+ and O. 18. How is collenchyma and sclerenchyma tissue similar? A) They both provide protection for the plant. B) They both transport material throughout the plant. C) They both provide support. D) They both provide energy for the plant. Show Answer Correct Answer: C) They both provide support. 19. What do inhibitors do ..... A) Speed up fruit ripening. B) Stimulate cell division. C) Stimulate cells to promote growth. D) Control pests. Show Answer Correct Answer: A) Speed up fruit ripening. 20. Which are growth hormones that are produced by the apical meristem? A) Gibberelins. B) Auxins. C) Cytokins. D) Etiolations. Show Answer Correct Answer: B) Auxins. ← PreviousNext →Related QuizzesCrop Physiology Quiz 1Crop Physiology Quiz 2Crop Physiology Quiz 3Crop Physiology Quiz 4Crop Physiology Quiz 5Crop Physiology Quiz 6Crop Physiology Quiz 8Crop Physiology Quiz 9Crop Physiology Quiz 10Crop Physiology Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books