Chapter 38 – Plant Nutrition and Soils
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process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
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Chapter 38 – Plant Nutrition and Soils
33. Inside nitrogen-fixing nodules, one N2 molecule is converted into two
34. In several studies of plant responses to elevated CO2 concentrations in the atmosphere,
scientists often found that the stimulation of growth gradually diminished because
Chapter 38 – Plant Nutrition and Soils
35. Which of these is considered a potentially dangerous heavy metal contaminant in soil?
36. A typical root pumps out H+ to maintain a strong membrane potential of about
Chapter 38 – Plant Nutrition and Soils
37. In acidic soils or in habitats subjected to prolonged acid rain, what element is often
released from rocks that is toxic to many plants?
Fill in the Blank Questions
Choose the letter of the best match from the following:
38. Contained in amino acids, proteins, nucleic acids, chlorophyll.
Chapter 38 – Plant Nutrition and Soils
39. Required for protein synthesis and operation of stomata.
Chapter 38 – Plant Nutrition and Soils
40. Component of cell walls, involved in maintenance of membrane structure.
41. Component of chlorophyll, activates many enzymes, divalent cation.
42. Component of ADP, ATP, nucleic acids, and several coenzymes.
True / False Questions
43. Plants that sequester heavy metals utilize pressure-flow where they move toxins from the
source (soil) to a sink (such as the leaves).
Chapter 38 – Plant Nutrition and Soils
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question?
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process break down or lead you astray? How can you revise your approach to produce a
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Chapter 38 – Plant Nutrition and Soils
Check All That Apply Questions
44. When plants are grown in hydroponic culture, their roots are suspended in an aerated
solution. Why is the solution aerated? Check all that apply.
Chapter 38 – Plant Nutrition and Soils
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What do you already know about theimportance of oxygen in plants at the molecular in
plants? How does it relate to the question?
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Chapter 38 – Plant Nutrition and Soils
True / False Questions
45. A magnesium deficiency would impact the light-independent reactions but not the light-
dependent reaction of photosynthesis.
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deficiency during the stages of photosynthesis.
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magnesium is removed, chlorophyll cannot be synthesized and photosynthesis cannot occur.
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Chapter 38 – Plant Nutrition and Soils
•
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Check All That Apply Questions
Chapter 38 – Plant Nutrition and Soils
46. Humus often enhances the water and nutrient-retaining properties of topsoil. Which of the
following might increase the humus content of a soil? Check all that apply.
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Chapter 38 – Plant Nutrition and Soils
True / False Questions
47. A parasitic plant without chlorophyll is likely to lack leaves.
Chapter 38 – Plant Nutrition and Soils
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What key words does the question contain and what do they mean?
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What do you already know about parasitic plants? How does it relate to the question?
Consider Possibilities
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What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
• Apply level: