This quiz works best with JavaScript enabled. Home > Crop Physiology > 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. A water soluble gas that moves through the plant. A) Auxin. B) Cytokinin. C) Ethylene. D) Gibberellin. Show Answer Correct Answer: C) Ethylene. 2. Rate of photosynthesis does not depend upon A) Quality of Light. B) Intensity of Light. C) Duration of light. D) Temperature. Show Answer Correct Answer: C) Duration of light. 3. Which of the following is NOT involved in moving water up a plant? A) Capillary action made possible by the tube-shaped cells. B) Transpiration in the leaves, which helps maintain low pressure in the leaves. C) Companion cells pumping water in and out of the xylem using active transport. D) Casparian Strip in the roots, which helps maintain high pressure of water in the roots. Show Answer Correct Answer: C) Companion cells pumping water in and out of the xylem using active transport. 4. Photosynthesis A) A series of processes in which solar energy is converted to chemical energy. B) Process by which living cells take in oxygen and give off Carbon Dioxide. C) Process by which a plant gives up water vapor to the atmosphere. D) Study of how these organs function and the complex chemical processes that permit the plant to live, grow and reproduce. Show Answer Correct Answer: A) A series of processes in which solar energy is converted to chemical energy. 5. P680 is part of ..... while P700 is part of ..... A) Calvin Cycle / Photosystems II and I. B) Photosystem II / Photosystem I. C) Photosystems II and I / Calvin Cycle. D) Photosystem I / Photosystem II. Show Answer Correct Answer: B) Photosystem II / Photosystem I. 6. What effect does citrus blight have on citrus trees. A) Kills them. B) Helps the tree produce more fruit. C) Renders a tree worthless for fruit production and kills them. D) Does stuff. Show Answer Correct Answer: C) Renders a tree worthless for fruit production and kills them. 7. Which statement is wrong about Kreb's cycle? A) There is one point in the cycle where FAD+ is reduced to FADH2. B) During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised. C) The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid. D) There are three points in the cycle where NAD+ is reduced to NADH + H+. Show Answer Correct Answer: C) The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid. 8. What is needed to increase surface area to absorb more water? A) Leaves. B) Stems. C) Root hairs. D) Xylems. Show Answer Correct Answer: C) Root hairs. 9. What plant tissue transports material between the root and the shoot of the plant A) Ground tissue. B) Apical tissue. C) Dermal tissue. D) Vascular tissue. Show Answer Correct Answer: D) Vascular tissue. 10. The rate at which photosynthesis is carried out depends on A) The amount of fertilizer in the water. B) The amount of oxygen in the atmostphere. C) The light intensity, gtemperature, and concentration of carbon dioxide. D) The amount of respiration carried on durring the daylight hours. Show Answer Correct Answer: C) The light intensity, gtemperature, and concentration of carbon dioxide. 11. Plant Physiologists are responsible for studying and researching what? A) Process of plant development. B) How respiration works. C) Process of plant growth and development. D) How photosynthesis works. Show Answer Correct Answer: C) Process of plant growth and development. 12. Which tropism is a response to gravitational forces? A) Geotropism. B) Gravitiytropsim. C) Soiltropism. D) Hydrotropism. Show Answer Correct Answer: A) Geotropism. 13. Which of the following is a chlorophyll molecule lacking central Mg2+ ion? A) Chl a. B) Bacteriochlorophyll. C) Chl c. D) Pheophytin. Show Answer Correct Answer: D) Pheophytin. 14. What is another name for glucose? A) Chlorophyll. B) Chloroplasts. C) Stomata. D) Sugar. Show Answer Correct Answer: D) Sugar. 15. What pigment absorbs sunlight for photosynthesis? A) Chloroplast. B) Thylakoid. C) Grana. D) Chlorophyll. Show Answer Correct Answer: D) Chlorophyll. 16. What part of the seed helps to protect the embryo? A) Embryo. B) Seed coat. C) Root. D) Leaves. Show Answer Correct Answer: B) Seed coat. 17. A student did the experiment about the effect of light to plant growth. She put one plant in dark place and the other in the light place. After 4 days, she found that the plant in the dark place grow taller than in the light one. What the name of this phenomenon and which plant hormone involved? A) Etiolation and auxin. B) Etiolation and abscisic acid. C) Epiolation and auxin. D) Epiolation and abscisic acid. Show Answer Correct Answer: A) Etiolation and auxin. 18. Chlorophyll A) Is the substance that gives plant leaves their green color. B) Small membrane bound bodies inside the cell that contain the green chlorophyll pigment. C) Conversion of Carbon Dioxide. D) Most important life-sustaining process. Show Answer Correct Answer: A) Is the substance that gives plant leaves their green color. 19. What is the region of rapid cell division (growth) in plants? A) Guard. B) Stomata. C) Xylem. D) Meristem. Show Answer Correct Answer: D) Meristem. 20. A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rate of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant? A) C4. B) CAM. C) Nitrogen fixer. D) C3. Show Answer Correct Answer: A) C4. ← PreviousNext →Related QuizzesCrop Physiology Quiz 1Crop Physiology Quiz 2Crop Physiology Quiz 4Crop Physiology Quiz 5Crop Physiology Quiz 6Crop Physiology Quiz 7Crop Physiology Quiz 8Crop Physiology Quiz 9Crop Physiology Quiz 10Crop Physiology Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books