1. A CTIVE L ECTURES Using Classroom Response Systems Copyright © 2008 Pearson Prentice Hall, Inc. Chapter 21: The Diversity of Plants

2. Do all plants undergo photosynthesis? 1.Yes. 2.Maybe. 3.No.

4. Do all plants undergo photosynthesis? 1.Yes. 2.Maybe. 3.No.

6. Plants alternate between diploid and haploid generations. What is the proper order of the plant life cycle? 1.Sporophyte, zygote, haploid plant (gametophyte), gamete production, meiosis, haploid spore, sporophyte 2.Sporophyte, haploid spore, haploid plant (gametophyte), gamete production, zygote, meiosis, sporophyte 3.Sporophyte, meiosis, haploid spore, haploid plant (gametophyte), gamete production, zygote, sporophyte 4.Sporophyte, meiosis, haploid plant (gametophyte), gamete production, haploid spore, zygote, sporophyte

7. Plants alternate between diploid and haploid generations. What is the proper order of the plant life cycle? 1.Sporophyte, zygote, haploid plant (gametophyte), gamete production, meiosis, haploid spore, sporophyte 2.Sporophyte, haploid spore, haploid plant (gametophyte), gamete production, zygote, meiosis, sporophyte 3.Sporophyte, meiosis, haploid spore, haploid plant (gametophyte), gamete production, zygote, sporophyte 4.Sporophyte, meiosis, haploid plant (gametophyte), gamete production, haploid spore, zygote, sporophyte

9. Which of the following functions that anchor ecosystems is not performed by plants? 1.Supply nutrients to the rest of the ecosystem 2.Supply energy to the rest of the food web 3.Recycle energy from dead organisms 4.Create and maintain soil 5.Supply other organisms with oxygen 6.Capture solar energy and convert it to a more usable form

10. Which of the following functions that anchor ecosystems is not performed by plants? 1.Supply nutrients to the rest of the ecosystem 2.Supply energy to the rest of the food web 3.Recycle energy from dead organisms 4.Create and maintain soil 5.Supply other organisms with oxygen 6.Capture solar energy and convert it to a more usable form

11. Humans do not rely on plants for: 1.Gasoline for cars. 2.Fuel for heating homes and cooking. 3.Housing frames. 4.Breaking down waste. 5.Medicine. 6.Food.

12. Humans do not rely on plants for: 1.Gasoline for cars. 2.Fuel for heating homes and cooking. 3.Housing frames. 4.Breaking down waste. 5.Medicine. 6.Food.

13. Which of the following did the ancestors of modern plants possess? 1.True roots 2.Stems 3.Leaves 4.Complex reproductive structures 5.Chlorophyll

14. Which of the following did the ancestors of modern plants possess? 1.True roots 2.Stems 3.Leaves 4.Complex reproductive structures 5.Chlorophyll

15. Which of the following was not a challenge once plants moved from water to land? 1.They had to stand upright against gravity. 2.There was not enough sunlight for photosynthesis. 3.Nutrients were more difficult to obtain. 4.Air caused dehydration. 5.Gametes were more difficult to disperse.

16. Which of the following was not a challenge once plants moved from water to land? 1.They had to stand upright against gravity. 2.There was not enough sunlight for photosynthesis. 3.Nutrients were more difficult to obtain. 4.Air caused dehydration. 5.Gametes were more difficult to disperse.

17. Which of the following is not a plant adaptation for life on land? 1.Roots, which stabilize and absorb water and nutrients from soil 2.A waxy cuticle, which prevents water loss 3.Colonial living, which maximizes use of resources while expending less energy 4.Stomata, which allow for gas exchange 5.Vessels that conduct water and sugars

18. Which of the following is not a plant adaptation for life on land? 1.Roots, which stabilize and absorb water and nutrients from soil 2.A waxy cuticle, which prevents water loss 3.Colonial living, which maximizes use of resources while expending less energy 4.Stomata, which allow for gas exchange 5.Vessels that conduct water and sugars

19. _______ are to plants as amphibians are to animals. 1.Gymnosperms 2.Cycads 3.Gnetophytes 4.Bryophytes 5.Angiosperms

20. _______ are to plants as amphibians are to animals. 1.Gymnosperms 2.Cycads 3.Gnetophytes 4.Bryophytes 5.Angiosperms

22. Why is water needed for bryophyte reproduction? 1.Both the sperm and the egg develop in spores, which must swim through water to undergo fertilization. 2.The sperm must swim to the egg. 3.Without water, the sperm will fertilize the egg, but the embryo will not develop. 4.Without water, the embryo will remain haploid instead of diploid.

23. Why is water needed for bryophyte reproduction? 1.Both the sperm and the egg develop in spores, which must swim through water to undergo fertilization. 2.The sperm must swim to the egg. 3.Without water, the sperm will fertilize the egg, but the embryo will not develop. 4.Without water, the embryo will remain haploid instead of diploid.

25. What is one of the main differences between club moss and moss? 1.Club moss has vascular tissue. 2.Moss has leaves; club moss does not. 3.To conduct water and nutrients, club moss has rhizoids rather than vessels. 4.Moss has sperm and egg within the same spore; club moss has them in different spores.

27. What is one of the main differences between club moss and moss? 1.Club moss has vascular tissue. 2.Moss has leaves; club moss does not. 3.To conduct water and nutrients, club moss has rhizoids rather than vessels. 4.Moss has sperm and egg within the same spore; club moss has them in different spores.

29. What is one of the main differences between seedless and seed plants? 1.Only seedless plants produce pollen. 2.Only seed plants produce pollen. 3.Only seedless plants have vascular tissue. 4.Only seed plants have vascular tissue.

30. What is one of the main differences between seedless and seed plants? 1.Only seedless plants produce pollen. 2.Only seed plants produce pollen. 3.Only seedless plants have vascular tissue. 4.Only seed plants have vascular tissue.

32. Have you ever used a diet supplement or appetite suppressant? 1.Yes. 2.No.

33. Which of the following is not an adaptation that enables evergreen trees to live in a cold, dry ecosystem? 1.To protect the embryos from the cold, they develop in the roots. 2.The trees grow continuously and undergo photosynthesis year-round. 3.The trees have a waxy waterproof coating that minimizes water loss. 4.The sap contains antifreeze that helps transport fluids even in freezing temperatures.

34. Which of the following is not an adaptation that enables evergreen trees to live in a cold, dry ecosystem? 1.To protect the embryos from the cold, they develop in the roots. 2.The trees grow continuously and undergo photosynthesis year-round. 3.The trees have a waxy waterproof coating that minimizes water loss. 4.The sap contains antifreeze that helps transport fluids even in freezing temperatures.

35. What is not a major adaptation of angiosperms? 1.Flowers 2.Fruit 3.Needle-like leaves 4.Broad leaves

36. What is not a major adaptation of angiosperms? 1.Flowers 2.Fruit 3.Needle-like leaves 4.Broad leaves

38. In angiosperms, how does the sperm reach the egg? 1.The sperm uses flagella to swim to the egg. 2.The sperm and egg are produced inside the seed and grow into an adult form. 3.The pollen forms a tube in the stigma, through which the sperm travels to meet the egg. 4.The sperm fertilizes the egg outside the plant body.

39. In angiosperms, how does the sperm reach the egg? 1.The sperm uses flagella to swim to the egg. 2.The sperm and egg are produced inside the seed and grow into an adult form. 3.The pollen forms a tube in the stigma, through which the sperm travels to meet the egg. 4.The sperm fertilizes the egg outside the plant body.

40. Have you eaten an ovary today? 1.Yes. 2.No.

41. Elephants contribute to their ecosystems by helping plants grow in new areas. Why is it important that the plant seeds elephants eat be enclosed in hard coverings? 1.So that the seeds will not break when the elephants step on them. 2.To deter the elephants from eating all of them. 3.To allow the seeds to begin to propagate in any environment. 4.To allow the seeds to survive while passing though the elephant’s digestive system.

42. Elephants contribute to their ecosystems by helping plants grow in new areas. Why is it important that the plant seeds they eat be enclosed in hard coverings? 1.So that the seeds will not break when the elephants step on them. 2.To deter the elephants from eating all of them. 3.To allow the seeds to begin to propagate in any environment. 4.To allow the seeds to survive while passing though the elephant’s digestive system.