6 th Grade Science Chapter 11 Plants Chapter Review San Rafael Falls, Ecuador

1.About how many varieties of plants have been discovered? a. 30,000c. over 300,000 b. 675,000d. 300 Answer: Over 300,000 Chapter 11 Review Questions

2.What makes plants green? Answer: chlorophyll Chapter 11 Review Questions

5. The _____ is a waxy protective layer on leaves? Answer: cuticle Chapter 11 Review Questions

7. Which of the following are seedless nonvascular plants? a. mossc. horsetail b. liverwortd. pine Answer: Moss and liverwort Chapter 11 Review Questions

8. What are the small openings in the surface of a leaf surrounded by guard cells called? Answer: stomata Chapter 11 Review Questions

9. What are the plant structures that anchor the plants called? Answer: roots Chapter 11 Review Questions

10. What are the plant structures where photosynthesis takes place called? Answer: leaves Chapter 11 Review Questions

3. Plants use chlorophyll to make sugar using a process called _________. Answer: photosynthesis Chapter 11 Review Questions

11. What are the plant structures that support the branches and leaves? Answer: stems Chapter 11 Review Questions

23. Seed plants generally are classified into two major groups - ______ and______. Answer: gymnosperms, angiosperms Chapter 11 Review Questions

6. Which of the following is a seedless vascular plant? a. mossc. horsetail b. liverwortd. pine Answer: horsetail Chapter 11 Review Questions

13. What are the plant structures that anchor moss called? Answer: rhizoids Chapter 11 Review Questions

14. Mosses, liverworts, and hornworts are ______ plants. Answer: Non-vascular, seedless Chapter 11 Review Questions

17. What do plants use vascular tissue? a. transfer water - mineralsc. food b. support the plantd. photosynthesis Answer: Transfer water - minerals Chapter 11 Review Questions

18. What are the first plants to grow in new or disturbed area? Answer: Pioneer species Chapter 11 Review Questions

Answer: Fronds 19. Fern leaves are called _____? Chapter 11 Review Questions

20. Seedless produce ______ rather than seeds. Answer: Spores Chapter 11 Review Questions

22. ______ plants grow taller and can live farther from water than _______ plants. Answer: Vascular, nonvascular Chapter 11 Review Questions

15. Ferns, club mosses, and horsetails are ______ plants. Answer: vascular, seedless Chapter 11 Review Questions

24. A herbaceous stem is ______. Answer: Soft and green Chapter 11 Review Questions

26. ______ allow carbon dioxide, water, and oxygen to enter and exit a leaf. Answer: stomata Chapter 11 Review Questions

27. ____ is often the largest part of a plant. Answer: roots Chapter 11 Review Questions

29. ______ transports the sugar (food) in the vascular system of a seed plant. Answer: phloem Chapter 11 Review Questions

31. _____ are vascular plants that produce seeds that are not protected by fruit. Answer: gymnosperms Chapter 11 Review Questions

30. ______ produces most of the new phloem and xylem in the vascular system of a seed plant. Answer: cambium Chapter 11 Review Questions

37. Peanuts, peas, apples, and oranges come from _____ Answer: dicots Chapter 11 Review Questions

25. Each stomata is surrounded by two_____ cells. Answer: guard Chapter 11 Review Questions

32. _____ are vascular plants that produce seeds that are protected by fruit. Answer: Angiosperms Chapter 11 Review Questions

38. Plants called biennials complete their life cycles in _____ year(s). Answer: two Chapter 11 Review Questions

28. ______ transports the water in the vascular system of a seed plant. Answer: xylem Chapter 11 Review Questions

33. Conifers, cycads, and ginkgoes are classified as _______. Answer: gymnosperms Chapter 11 Review Questions

40. Plants called perennials complete their life cycles in _____ year(s). Answer: several years Chapter 11 Review Questions

34. Apple trees, maple trees, and oak trees are classified as _______. Answer: Angiosperms Chapter 11 Review Questions

35. Angiosperms are divided into two groups - _____ and _____. Answer: Monocots, dicots Chapter 11 Review Questions

36. Corn, rice, wheat, and barley come from _____ Answer: monocots Chapter 11 Review Questions

39. Plants called annuals complete their life cycles in _____ year(s). Answer: one Chapter 11 Review Questions