This quiz works best with JavaScript enabled. Home > Plant Biology > Plant Biology – Quiz 30 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Plant Biology Quiz 30 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following pairs is a true aquatic fern? A) Azolla, Salvinia. B) Azolla, Selaginella. C) Azolla, Lycopodium. D) Salvinia, Equisetum. Show Answer Correct Answer: A) Azolla, Salvinia. 2. This part of the plant produces seeds and creates pollen. A) Roots. B) Flower. C) Stem. D) Leaves. Show Answer Correct Answer: B) Flower. 3. Which of the following are you most living to find mosses? A) Shaded ground near a small pond. B) Exposed ground with direct sun. C) Hot, dry, mineral-poor soil. D) Sandy soil near a beach. Show Answer Correct Answer: A) Shaded ground near a small pond. 4. The conducting tissues that transport water and food in plants. A) Vascular tissue. B) Nastic movement. C) Transpiration. D) None of above. Show Answer Correct Answer: A) Vascular tissue. 5. Which of the following is true of leaf structure? A) The main site of photosynthesis is the spongy mesophyll cells. B) The lower surface has a thicker waxy cuticle than the upper surface. C) Palisade mesophyll cells are arranged far apart to create air spaces. D) The lower surface contains more stomata than the upper surface. Show Answer Correct Answer: D) The lower surface contains more stomata than the upper surface. 6. Which organ transports water throughout the plant A) Phloem. B) Xylem. C) Stomata. D) Cambium. Show Answer Correct Answer: B) Xylem. 7. Oxygen and carbon dioxide move in and out of a leaf through the A) Phloem. B) Stomata. C) Guard cells. D) Palisade mesophyll. Show Answer Correct Answer: B) Stomata. 8. Water is an important ingredient for photosynthesis. What part of the plant absorbs water? ? ? ? A) The leaves. B) The stems. C) Glucose. D) Roots. Show Answer Correct Answer: D) Roots. 9. Which of the following organelles in a plant cell have double membranes? I. rough endoplasmic reticulumII. golgi bodyIII. chloroplast A) I only. B) II only. C) III only. D) I, II and III. Show Answer Correct Answer: C) III only. 10. Plants make their own food through a process called ..... A) Transpiration. B) Photosynthesis. C) Respiration. D) Hypothesis. Show Answer Correct Answer: B) Photosynthesis. 11. This is a hormone that regulates dormancy of a plant and stomata closure in the leaves. A) Abscisic acid. B) Auxin. C) Cytokinin. D) Ethylene. Show Answer Correct Answer: A) Abscisic acid. 12. If the xylem in a young tree is damaged, which process is first affected? A) Performing photosynthesis. B) Transporting sugar to the roots. C) Transporting water to the leaves. D) Absorbing water from the soil. Show Answer Correct Answer: D) Absorbing water from the soil. 13. Tree rings refer to the number of ..... A) Xylem. B) Stomata. C) Guard cells. D) Marriages. Show Answer Correct Answer: A) Xylem. 14. What is the correct formula for cellular respiration? A) H2O+CO2+sunlight $\rightarrow$ O2 + C6H12O6. B) CO2+ sunlight + O2 $\rightarrow$ O2 + C6H12O6. C) O2+ C6H12O6 $\rightarrow$ H2O + CO2 + sunlight. D) O2+ C6H12O6 $\rightarrow$ H2O + CO2 + ATP. Show Answer Correct Answer: D) O2+ C6H12O6 $\rightarrow$ H2O + CO2 + ATP. 15. Define transpiration. A) Loss of water from plants. B) Loss of water through stoma on the leaves. C) Process of water loss in the form of water vapour from the surface of the leaves through evaporation. D) Process of water loss in the form of liquid from the surface of the leaves through evaporation. Show Answer Correct Answer: C) Process of water loss in the form of water vapour from the surface of the leaves through evaporation. 16. What is the suitable temperature for seeds germinate? A) 10-37 0 C. B) 30-35 0 C. C) 40-50 0 C. D) 0 0 C. Show Answer Correct Answer: A) 10-37 0 C. 17. Adaptations in plant to reduce transpiration are- A) No of stomata. B) Thickness of cuticle. C) Loss of leaves. D) All of the above. Show Answer Correct Answer: D) All of the above. 18. What organ transports sugar throughout the plant A) Phloem. B) Stomata. C) Guard cells. D) Cambium. Show Answer Correct Answer: A) Phloem. 19. Mosses and liverworts are called non-vascular plant because A) They lack motile sperm. B) They lack seed. C) They lack vascular tissue. D) They lack true roots, stems and leaves. Show Answer Correct Answer: D) They lack true roots, stems and leaves. 20. In which plant part does photosynthesis happen? A) Leaves. B) Roots. C) Stems. D) Seeds. Show Answer Correct Answer: A) Leaves. ← PreviousNext →Related QuizzesPlant Biology Quiz 1Plant Biology Quiz 2Plant Biology Quiz 3Plant Biology Quiz 4Plant Biology Quiz 5Plant Biology Quiz 6Plant Biology Quiz 7Plant Biology Quiz 8Plant Biology Quiz 9Plant Biology Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books