This quiz works best with JavaScript enabled. Home > Agriculture > Plant Biology > Studies > Plant Biology – Quiz 33 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Plant Biology Quiz 33 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The chemical reactions where carbon is removed from carbon dioxide to make other organic molecules such as sugars. A) Photons. B) Light-dependent reactions. C) Photoelectric effect. D) Carbon fixing reactions. Show Answer Correct Answer: D) Carbon fixing reactions. 2. What is one reason that vascular plants are larger than nonvascular plants? A) Nonvascular plants cannot live in as many areas as vascular plants, so they stay small. B) Nonvascular plants do not reproduce as quickly as vascular plants do, so they do not grow as large. C) Vascular plants live in areas where they can get more water than nonvascular plants can. D) Vascular tissue carries water and nutrients much more efficiently than can be carried by diffusion. Show Answer Correct Answer: D) Vascular tissue carries water and nutrients much more efficiently than can be carried by diffusion. 3. In angiosperms, pollen grains are produced in A) Carpels. B) Sepals. C) Anthers. D) Ovules. Show Answer Correct Answer: C) Anthers. 4. Which of the following responses is a plant growing toward or leaning toward light? A) Phototropism. B) Hydrotropism. C) Thigmotrophism. D) Gravitropism. Show Answer Correct Answer: A) Phototropism. 5. Suppose Priestley repeated his experiment using many kinds of plants besides mint, and that when different plants were placed under the jar the candle remained lighted for different periods of time. What would be a logical conclusion from these experiments? A) Different plants require different amounts of water. B) Different plants release different amounts of oxygen. C) Different plants require different amounts of light. D) Different plants release different amounts of carbon dioxide. Show Answer Correct Answer: B) Different plants release different amounts of oxygen. 6. What part of plant holds the plant up above ground? A) Leaves. B) Stem. C) Seed. D) Rope. Show Answer Correct Answer: B) Stem. 7. When a tree grows wider in trunk diameter, this is an example of which of the following? A) Secondary growth. B) Xylem transport. C) Photosynthesis. D) Primary growth. Show Answer Correct Answer: A) Secondary growth. 8. Organisms other than plants which contain Chlorophyll are A) Fungi. B) Algae. C) Protozoa. D) Virus. Show Answer Correct Answer: B) Algae. 9. These soak up vitamins and minerals, and store food. A) Leaves. B) Stems. C) Roots. D) None of above. Show Answer Correct Answer: C) Roots. 10. Which statement describes a function of the roots? A) They have tiny root hairs on them. B) They are the location of reproduction. C) They are connected to the stem. D) They take in nutrients from the soil. Show Answer Correct Answer: D) They take in nutrients from the soil. 11. Plants have three main structures:roots, stems, and .....? A) Petals. B) Sepals. C) Flowers. D) Leaves. Show Answer Correct Answer: D) Leaves. 12. Growth of plant towards or away from gravity A) Gravitropism. B) Phototropism. C) Thigmotropism. D) None of above. Show Answer Correct Answer: A) Gravitropism. 13. How does carbon dioxide enter the leaf? A) Through the phloem. B) Through the stomata. C) Through the roots. D) Through the xylem. Show Answer Correct Answer: B) Through the stomata. 14. Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variable A) Type of fertilizer. B) Size of sunflower. C) Type of sun flower. D) None of above. Show Answer Correct Answer: A) Type of fertilizer. 15. In moving from mesophyl cells to the root, a molecule of sucrose will not pass through ..... A) Sieve pores. B) Cotransport proteins. C) Plasmodesmata. D) Xylem pits. Show Answer Correct Answer: D) Xylem pits. 16. Why Gymnosperms is more advance compared to Pteridophyes? A) Vascular plants. B) Sporophyte generation is dominant. C) Produce seed. D) Has true roots, stems and leaves. Show Answer Correct Answer: C) Produce seed. 17. This supports the plant. It has thin tubes that carry water, minerals, and food through the plant. A) Root. B) Stem. C) Leaf. D) Flower. Show Answer Correct Answer: B) Stem. 18. A responsive movement of a plant that is not dependent on the direction of the stimulus. These movements can be reversible if they do on involve growth (Venus fly trap). A) Nastic movement. B) Transpiration. C) Stomata (stoma). D) None of above. Show Answer Correct Answer: A) Nastic movement. 19. Where is xylem found in the plant? A) Leave $\rightarrow$ roots $\rightarrow$ stem. B) Stem $\rightarrow$ roots. C) Roots $\rightarrow$ stem $\rightarrow$ leaves. D) Root hairs $\rightarrow$ leaves $\rightarrow$ veins. Show Answer Correct Answer: C) Roots $\rightarrow$ stem $\rightarrow$ leaves. 20. A period during which the embryo of a seed is alive but not growing is A) Germination. B) Fertilization. C) Dispersal. D) Dormancy. Show Answer Correct Answer: D) Dormancy. 21. What is the scientific name for the shoot that first emerges from a seed during germination? A) Plumule. B) Cotyledon. C) Testa. D) Radicle. Show Answer Correct Answer: A) Plumule. 22. Which of the following is NOT a step in the light-depentant reactions A) Pigments in photosystem II absorb light. B) ATP and NADPH are used to produce high-energy sugars. C) ATP synthanse allows H+ ions to pass through the thylakoid membrane. D) High-energy electrons move through the electron transport chain. Show Answer Correct Answer: B) ATP and NADPH are used to produce high-energy sugars. 23. These protect and hold the seeds of the plant. A) Flower. B) Fruit. C) Root. D) Petal. Show Answer Correct Answer: B) Fruit. 24. What word means reproduction? A) Propagation. B) Fertilization. C) Germination. D) Pollination. Show Answer Correct Answer: A) Propagation. 25. Conifers are examples of ..... plants. A) Seed, vascular. B) Seed, nonvascular. C) Non-seed, vascular. D) Non-seed, nonvascular. Show Answer Correct Answer: A) Seed, vascular. 26. Define the term seed germination . A) This is the growth of a shoot. B) Process where an embryo sprouts from a seed. C) The growth of a plant. D) None of above. Show Answer Correct Answer: B) Process where an embryo sprouts from a seed. 27. When is the ideal time to transplant seedlings? A) After they are tall. B) When the first true leaves appear. C) When they flower. D) None of above. Show Answer Correct Answer: B) When the first true leaves appear. 28. How many nuclei are contained within an angiosperm embryo sac? A) 8. B) 6. C) 2. D) 4. Show Answer Correct Answer: A) 8. 29. A plant growing in response to the sunlight. A) Hydrotropism. B) Thigmotropism. C) Phototropism. D) Gravitropism. Show Answer Correct Answer: C) Phototropism. 30. Referring to the picture on the board, #24 is pointing at the ..... A) Ovary. B) Pistil. C) Style. D) Stamen. Show Answer Correct Answer: D) Stamen. ← 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