This quiz works best with JavaScript enabled. Home > Agriculture > Crop Physiology > Research > Crop Physiology – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Crop Physiology Quiz 2 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Stomatal movement is not affected by ; A) O2 concentration. B) Light. C) CO2 concentration. D) Temperature. Show Answer Correct Answer: A) O2 concentration. 2. The gas produced as a result of Transpiration A) Water vapour. B) Air. C) Carbon dioxide. D) Oxygen. Show Answer Correct Answer: A) Water vapour. 3. Which organelle does photosynthesis take place in? A) Cytoplasm. B) Chlorplast. C) Nucleus. D) Mitochondrion. Show Answer Correct Answer: B) Chlorplast. 4. Which hormone that is made mostly in the roots? A) Etiolation. B) Cytokins. C) Geo. D) Tropism. Show Answer Correct Answer: B) Cytokins. 5. What is the name of a plants response to the length of daylight and darkness? A) Photosynthesis. B) Photoperiodism. C) Tropism. D) Cellular Respiration. Show Answer Correct Answer: B) Photoperiodism. 6. Which of the following is not a product of light reaction of photosynthesis? A) Oxygen. B) NADH. C) NADPH. D) ATP. Show Answer Correct Answer: B) NADH. 7. The stalk of the pistil A) Anther. B) Filament. C) Pedicel. D) Style. Show Answer Correct Answer: D) Style. 8. Branch of science that deals with plant and animal organisms A) Zoology. B) Biology. C) Botany. D) Horticulture. Show Answer Correct Answer: B) Biology. 9. These types of plants lose leaves during the dormant season A) Annual. B) Deciduous. C) Wilted. D) Anciduous. Show Answer Correct Answer: B) Deciduous. 10. When an upright plant is placed on its side, the: A) Plant dies. B) Stem bends and grows downward. C) Stem bends and grows upward. D) Stem continues to develop horizontally. Show Answer Correct Answer: C) Stem bends and grows upward. 11. Hardiness is a plant's ability to withstand ..... temperatures A) High. B) Low. C) H. D) Room. Show Answer Correct Answer: B) Low. 12. What gas is released by plants during photosynthesis? A) Hydrogen. B) Oxygen. C) Sulfur. D) Carbon dioxide. Show Answer Correct Answer: B) Oxygen. 13. The life cycle of plants that lives more than two years ..... A) Perinneal. B) Biennial. C) Annual. D) Biannual. Show Answer Correct Answer: A) Perinneal. 14. What is the site of perception of photoperiod necessary for induction of flowering in plants? A) Leaves. B) Lateral buds. C) Shoot apex. D) Pulvinus. Show Answer Correct Answer: A) Leaves. 15. Term for formation of ATP using light energy in grana of chloroplast A) Adenosine triphosphate. B) Photophosphorylation. C) Photolysis. D) Respiration. Show Answer Correct Answer: B) Photophosphorylation. 16. The science and practice of growing field crops ..... A) Horticulture. B) Agriculture. C) Forestry. D) Agronomy. Show Answer Correct Answer: D) Agronomy. 17. What do phototropism and gravitropism enable plants to do? A) Respond to stimuli aggressively. B) Grow toward needed resources. C) Prevent invasion by insect colonies. D) Defend themselves against herbivores. Show Answer Correct Answer: B) Grow toward needed resources. 18. ..... bears the pollen A) Anther. B) Style. C) Ovary. D) Ovula. Show Answer Correct Answer: A) Anther. 19. If the root of the plant is towards the sun then it is ..... A) Positively phototropic. B) Positively geotropic. C) Negatively phototropic. D) Nastic movement. Show Answer Correct Answer: A) Positively phototropic. 20. What is a hormone that helps fruit ripen? A) Etiolation. B) Tropism. C) Ethylene. D) Gibberelins. Show Answer Correct Answer: C) Ethylene. 21. The loss of ..... from the aerial parts of the plant body is known as Transpiration. A) Stomata. B) Guard cell. C) Leaves. D) Water. Show Answer Correct Answer: D) Water. 22. Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by? A) Hexokinase. B) Phosphofructokinase. C) Aldolase. D) Enolase. Show Answer Correct Answer: A) Hexokinase. 23. In photosynthesis, the light independent reactions takes place at: A) Photosystem-I. B) Photosystem-II. C) Stromal matrix. D) Thylakoid lumen. Show Answer Correct Answer: C) Stromal matrix. 24. Plants store carbohydrates in long polysaccharide chains called A) Glycogen. B) Protein. C) Starch. D) Cellulose. Show Answer Correct Answer: C) Starch. 25. What is the structure that produces protein for the cell? A) Golgi. B) Ribosome. C) Mitochondria. D) Chloroplast. Show Answer Correct Answer: B) Ribosome. 26. 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. 27. Seed dormancy is due to the: A) IAA. B) Starch. C) Ethylene. D) Abscisic acid. Show Answer Correct Answer: D) Abscisic acid. 28. After a period of heavy rainfall, how would plants remove excess water? A) Open their stomata. B) Produce more seeds. C) Make more food. D) Drop their leaves. Show Answer Correct Answer: A) Open their stomata. 29. Photosynthesis is a ..... process A) Catabolic. B) Anabolic. C) Exothermic. D) None of the above. Show Answer Correct Answer: B) Anabolic. 30. What is the definition of a Long day plant? A) Tiny openings in plant epidermis for gas exchange. B) Plants that require long nights to flower. C) Plants that require short nights to flower. D) Plants that don't require a specific photoperiod. Show Answer Correct Answer: C) Plants that require short nights to flower. ← PreviousNext →Related QuizzesCrop Physiology QuizzesAgriculture QuizzesCrop Physiology Quiz 1Crop Physiology Quiz 3Crop Physiology Quiz 4 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books