This quiz works best with JavaScript enabled. Home > Agriculture > Plant Biology > Studies > Plant Biology – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Plant Biology Quiz 20 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This part of the plant produces seeds and creates pollen. A) Stem. B) Leaves. C) Roots. D) Flower. Show Answer Correct Answer: D) Flower. 2. 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. 3. 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. 4. Which of the following is true of leaf structure? A) The lower surface contains more stomata than the upper surface. 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 main site of photosynthesis is the spongy mesophyll cells. Show Answer Correct Answer: A) The lower surface contains more stomata than the upper surface. 5. Which organ transports water throughout the plant A) Cambium. B) Phloem. C) Xylem. D) Stomata. Show Answer Correct Answer: C) Xylem. 6. Oxygen and carbon dioxide move in and out of a leaf through the A) Stomata. B) Palisade mesophyll. C) Guard cells. D) Phloem. Show Answer Correct Answer: A) Stomata. 7. Water is an important ingredient for photosynthesis. What part of the plant absorbs water? ? ? ? A) The stems. B) Glucose. C) The leaves. D) Roots. Show Answer Correct Answer: D) Roots. 8. 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. 9. Plants make their own food through a process called ..... A) Photosynthesis. B) Respiration. C) Transpiration. D) Hypothesis. Show Answer Correct Answer: A) Photosynthesis. 10. This is a hormone that regulates dormancy of a plant and stomata closure in the leaves. A) Ethylene. B) Auxin. C) Cytokinin. D) Abscisic acid. Show Answer Correct Answer: D) Abscisic acid. 11. If the xylem in a young tree is damaged, which process is first affected? A) Transporting sugar to the roots. B) Absorbing water from the soil. C) Transporting water to the leaves. D) Performing photosynthesis. Show Answer Correct Answer: B) Absorbing water from the soil. 12. Tree rings refer to the number of ..... A) Guard cells. B) Xylem. C) Marriages. D) Stomata. Show Answer Correct Answer: B) Xylem. 13. What is the correct formula for cellular respiration? A) CO2+ sunlight + O2 $\rightarrow$ O2 + C6H12O6. B) O2+ C6H12O6 $\rightarrow$ H2O + CO2 + sunlight. C) H2O+CO2+sunlight $\rightarrow$ O2 + C6H12O6. D) O2+ C6H12O6 $\rightarrow$ H2O + CO2 + ATP. Show Answer Correct Answer: D) O2+ C6H12O6 $\rightarrow$ H2O + CO2 + ATP. 14. Define transpiration. A) Loss of water through stoma on the leaves. B) Process of water loss in the form of water vapour from the surface of the leaves through evaporation. C) Process of water loss in the form of liquid from the surface of the leaves through evaporation. D) Loss of water from plants. Show Answer Correct Answer: B) Process of water loss in the form of water vapour from the surface of the leaves through evaporation. 15. What is the suitable temperature for seeds germinate? A) 0 0 C. B) 10-37 0 C. C) 40-50 0 C. D) 30-35 0 C. Show Answer Correct Answer: B) 10-37 0 C. 16. 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. 17. What organ transports sugar throughout the plant A) Stomata. B) Guard cells. C) Phloem. D) Cambium. Show Answer Correct Answer: C) Phloem. 18. 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. 19. In which plant part does photosynthesis happen? A) Stems. B) Seeds. C) Leaves. D) Roots. Show Answer Correct Answer: C) Leaves. 20. Which of the following is true of the ribosomes in plant cells? A) Plant cells only contain 70S ribosomes. B) Plant cells only contain 80S ribosomes. C) Plant cells use 70S ribosomes but their mitochondria and chloroplasts contain 80S ribosomes. D) Plant cells use 80S ribosomes but their mitochondria and chloroplasts contain 70S ribosomes. Show Answer Correct Answer: D) Plant cells use 80S ribosomes but their mitochondria and chloroplasts contain 70S ribosomes. 21. Plant root tips have a layer of cells that function together to grow rapidly to allow the plant to increase the plant's ability to reach water and stabilize in the ground. Based on this information, what level of organization describes the plant root tips? A) Tissue. B) Organ system. C) Organ. D) Organism. Show Answer Correct Answer: A) Tissue. 22. Which is a result of double fertilization in angiosperms? A) The fertilized cells develop into the seed coat. B) A nutrient-rich tissue called endosperm develops. C) Two embryos develop in every seed. D) A triploid zygote is formed. Show Answer Correct Answer: B) A nutrient-rich tissue called endosperm develops. 23. Angiosperms produce seeds in A) Cones. B) Leaves. C) Roots. D) Fruit. Show Answer Correct Answer: D) Fruit. 24. One of the three main functions of stems is to A) Carry water and nutrients between roots and leaves. B) Store water. C) Store carbohydrates. D) Carry out photosynthesis. Show Answer Correct Answer: A) Carry water and nutrients between roots and leaves. 25. Which of these properly defines nutrition? A) Taking food. B) Utilising food. C) A and b. D) Variety of food. Show Answer Correct Answer: C) A and b. 26. What happens to a plant shoot if the tip is cut off? A) The shoot does not grow longer. B) The shoot continues to grow. C) The shoot will grow towards the sunlight. D) None of above. Show Answer Correct Answer: A) The shoot does not grow longer. 27. The gametophyte is A) Haploid. B) Diploid. C) Triploid. D) None of above. Show Answer Correct Answer: A) Haploid. 28. Cam plants have a different adaptation to what climate A) Cold and wet. B) Hot and dry. C) Both. D) None of the above. Show Answer Correct Answer: B) Hot and dry. 29. ..... produces sperm in the moss. A) Gamete. B) Antheridium. C) Capsule. D) Archegonia. Show Answer Correct Answer: B) Antheridium. 30. Wind-pollinated flowers usually have ..... and ..... petals. A) Big bright. B) Small bright. C) Big dull. D) Small dull. Show Answer Correct Answer: D) Small dull. ← PreviousNext →Related QuizzesPlant Biology QuizzesAgriculture QuizzesPlant Biology Quiz 1Plant Biology Quiz 2Plant Biology Quiz 3Plant Biology Quiz 4Plant Biology Quiz 5Plant Biology Quiz 6Plant Biology Quiz 7Plant Biology Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books