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Plants - AP Bio

Chapter 26, 27, 28

1. Are plants called (Epiphytes / Mycorrhizae / Saprophytes / None) when they don’t need soil to grow? None; they don’t have a name.
2. (Root nodules / cuticles / root hairs / active transports) are NOT necessary for mineral uptake by plant roots. Root nodules
3. (Oxygen / sulfur / carbon / hydrogen) is NOT one of the three most common elements in plants. Sulfur
4. The Greek root words meaning “water” and “hard work” are the basis for the term ______. Hydroponics
5. Soil formation is due to: a. Decomposition of organic matter b. Weathering of transport of bedrock c. Activity of animals such as earthworms d. All of the above D; All of the above
6. Which is an INCORRECT association of soil particles and characteristics? B; Clay isn't medium. It's small.
7. Which is a CORRECT relationship between soil particles and leaching of soil ions? C; Clay holds water clumps.
8. The type of plant found in trees that obtains nutrients from the air, such as the orchid or Spanish moss is ______. Epiphyte
9. Girdling is a process by which ______. A tree is killed by interrupting the passage of phloem sap
10. The collection of water drops along the margin of a leaf is called what? Guttation
11. ________ is the force responsible for moving water up to the tops of the tallest trees. Transpiration
12. When plants are stressed for water: D; All of the above
13. Sieve tube members are connected by _____ Companion cells
14. Transpiration rate in plants is increased by Wind, Temperature, and Sunlight intensity.
15. Pinching the top off a plant to create fuller growth involves which hormone(s)? Auxins
16. The Greek root word meaning “turning’ is the basis for the term ______. Tropism
17. What external stimuli produces a growth of the plant towards light? Positive phototropism
18. What stimuli causes roots to grow downward? Positive gravitropism
19. What stimuli causes a pea vine to twine around a wire support? Thigmotropism
20. Plant hormones are generally produced in _______ tissues. Meristem
21. What plant hormone is a growth inhibitor? Auxins
22. What plant hormone was studied in the 1880s by Charles and Francis Darwin in experiments on phototropism? Auxin
23. What plant hormone was discovered in infected rice seedlings that grew extremely tall and slender? Gibberellin
24. Dormancy in seeds and buds can be broken by the application of what plant hormone? Gibberellin
25. Application of the ______ hormone prevents plant tissues from senescing, or aging. Cytokinin
26. The ______ plant hormone is a gas. Ethylene
27. The ______ plant hormone stimulates the ripening of fruit and inhibits plant growth. Ethylene
28. The Latin root word meaning “cut off” is the basis for the term _____. Abscission
29. The plant hormone _______ is called the stress hormone because it produces dormancy in seeds and buds. Abscisic Acid
30. The plant hormone _______ is associated with the closure of the stomates in a plant under water stress. Abscisic Acid
31. How do some plants seeds “know” when it is day and night, and perhaps when to germinate? E; All of the above
32. Apical dominance in plants is due to the _______ plant hormone. Auxins
33. The name monocot and dicot are derived from the differences in the formation of what? Seed leaves, cotyledons
34. If there is only one egg in the ovule, why are two sperm needed for fertilization? One fertilizes the egg and the other unites with the central cell to form endosperm.
35. When a monocot such as corn germinates, the initial shoot is called the _____ while the initial root is called the ______. Coleoptile; radicle
36. If you have picked a bouquet of anther-less flowers, you have picked ___________________. Female gametophytes retained within the body of sporophytes
37. The microspore develops into what? Male Gametophyte
38. One of the parts in the outermost ring of floral structures, forming a bud cover, is a _____. Sepal
39. The site of formation of pollen grains is in the __________. Stamen
40. The stigma, style, and ovary are located in a carpel found in the _______. Pistil
41. The anther and filament are parts of the ________. Stamen
42. The Latin root word meaning “egg” is the basis for the term _______. Ovule
43. Ovules are contained within the what? Ovary
44. A microspore mother cell would be located where? Anthers
45. Pollen would land on the _______ during pollination. Stigma
46. Double fertilization in an angiosperm produces ___________. A diploid zygote and a triploid endosperm
47. The function of endosperm is to do what? Provides nutrients to the embryo
48. Seeds require __________ for germination to occur. Oxygen, increased metabolism, adequate temperature and water.
49. What is co-evolution? The mutual changes in two or more species that affect their interactions
50. Define photoperiodism The response of an organism to seasonal changes in day length
51. Is day or night length more important to the plants ability to flower? Night length
Created by: CommanderJonno



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