This quiz works best with JavaScript enabled. Home > Crop Physiology > Research > Crop Physiology – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Crop Physiology Quiz 1 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Emerson's enhancement and red drop have been instrumental in the discovery of A) Photophosphorylation and non-cyclic electron transport. B) Two photosystems operating simultaneously. C) Photophosphorylation and cyclic electron transport. D) Oxidative phosphorylation. Show Answer Correct Answer: B) Two photosystems operating simultaneously. 2. Protects the young buds of the flower A) Stalk. B) Pedicel. C) Receptacle. D) Ovary. Show Answer Correct Answer: C) Receptacle. 3. Emerson's enhancement effect and Red drophave been instrumental in the discovery of? A) Two photosystems operating simultaneously. B) Photophosphorylation and cyclic electron transport. C) Oxidative photophosphorylation. D) Photophosphorylation and non-cyclic electron transport. Show Answer Correct Answer: A) Two photosystems operating simultaneously. 4. What is pH? A) The sweetness of plants. B) The sourness of plants. C) The measure of how acid/basic the water is. D) The measure of gasses in the air. Show Answer Correct Answer: C) The measure of how acid/basic the water is. 5. In a chloroplast the highest number of protons are found in; A) Lumen of thylakoids. B) Inter membrane space. C) Antennae complex. D) Stroma. Show Answer Correct Answer: A) Lumen of thylakoids. 6. Hydrotropism is the movement of a plant due to? A) Chemicals. B) Light. C) Water. D) Physical contact. Show Answer Correct Answer: C) Water. 7. Bolting is induced by ..... hormone. A) GA2. B) IAA. C) IPA. D) GA3. Show Answer Correct Answer: D) GA3. 8. Photosynthesis is carried out in the ..... A) Palisade cells. B) Stoma. C) Xylem. D) Phloem. Show Answer Correct Answer: A) Palisade cells. 9. Name for #6 A) Anther. B) Style. C) Pedicel. D) Filament. Show Answer Correct Answer: D) Filament. 10. It takes a very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants through the year to increase yield? A) Gibberellin and Abscisic acid. B) Cytokinin and Abscisic acid. C) Auxin and Ethylene. D) Gibberellin and Cytokinin. Show Answer Correct Answer: C) Auxin and Ethylene. 11. During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by? A) Carotene. B) Cytochrome. C) Leghaemoglobin. D) Xanthophyll. Show Answer Correct Answer: C) Leghaemoglobin. 12. What is the most common specialized stem used for food? A) Tuber. B) Fibrous. C) Hairy. D) Branch. Show Answer Correct Answer: A) Tuber. 13. Which tropism is a response to light? A) Lighttropism. B) Phototropism. C) Thigmotropism. D) Hydrotropism. Show Answer Correct Answer: B) Phototropism. 14. Instead of-CH3 group at the third C of the side group of Chl a, Chl b has A) -COOH group. B) -CO group. C) -CHO group. D) -OH group. Show Answer Correct Answer: C) -CHO group. 15. What is a plant's response to a hard object? A) Thigmotropism. B) Gravitropism. C) Geotropism. D) None of above. Show Answer Correct Answer: A) Thigmotropism. 16. Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates, and proteins? A) Fructose 1-6 bisphosphate. B) Pyruvic acid. C) Acetyl CoA. D) Glucose 6-phosphate. Show Answer Correct Answer: C) Acetyl CoA. 17. A water soluble gas that moves through the plant. A) Auxin. B) Cytokinin. C) Ethylene. D) Gibberellin. Show Answer Correct Answer: C) Ethylene. 18. 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. 19. 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. 20. Which tropism is a response to gravitational forces? A) Geotropism. B) Gravitiytropsim. C) Soiltropism. D) Hydrotropism. Show Answer Correct Answer: A) Geotropism. Next →Related QuizzesCrop Physiology QuizzesCrop Physiology Quiz 2Crop Physiology Quiz 3Crop Physiology Quiz 4Crop Physiology Quiz 5Crop Physiology Quiz 6 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books