Chapter 38 – Plant Nutrition and Soils
Chapter 38
Plant Nutrition and Soils
Multiple Choice Questions
1. Plants can remove harmful chemicals from the soil by the process of
2. Trichloroethylene (TCE) is toxic to humans because it
Chapter 38 – Plant Nutrition and Soils
3. Heavy metals in contaminated soils can be taken up by hyper-accumulating plants. Lead
and cadmium taken up this way are often accumulated in the plants’
4. Natural communities recycle nutrients, but cultivated communities often require an input
of mineral nutrients due to losses through
Chapter 38 – Plant Nutrition and Soils
5. Carnivorous plants evolved because which of the following nutrients is often extremely
limited in their habitats?
6. Which of the following statements about plants grown in hydroponic culture is true?
Chapter 38 – Plant Nutrition and Soils
7. A primary advantage of using integrated nutrient management compared to inorganic
chemical fertilizers is that
8. Certain plants have been genetically modified to secrete citrate, which helps
Chapter 38 – Plant Nutrition and Soils
9. A deficiency in a plant micronutrient
10. Inserting a cloned gene for a plasma membrane transporter into crop plants could lead to
11. A deficiency of ammonia would inhibit the production of which of the following
molecules?
Chapter 38 – Plant Nutrition and Soils
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about ammonia in plants? How does it relate to the question?
Consider Possibilities
•
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?
12. The Nod factor is an important component of
13. Although symbiotic relationships between nitrogen-fixing bacteria and plants are rare,
many plants have symbiotic relationships with
Chapter 38 – Plant Nutrition and Soils
14. The effects of elevated atmospheric CO2 concentrations
15. Which of the following does not increase the level of nutrients available to crop plants?
Chapter 38 – Plant Nutrition and Soils
16. The most important mineral nutrients added to soils in fertilizers are
17. Insectivorous plants such as the Venus flytrap, pitcher plant, and bladderworts often grow
in
Chapter 38 – Plant Nutrition and Soils
18. The habitats most favorable for the growth of legumes in symbiosis with nitrogen-fixing
bacteria are
19. Which of the following is most limiting for plant growth, especially in relation to the
plant’s carbon uptake?
20. Which of the following is required by plants in the smallest quantity?
Chapter 38 – Plant Nutrition and Soils
21. During the initiation of nitrogen-fixation nodules, a host plant with genetic mutations
releases altered forms of flavonoids. What is the likely consequence of this?
Chapter 38 – Plant Nutrition and Soils
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about flavonoids in plants? How does it relate to the
question?
Consider Possibilities
•
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:
Chapter 38 – Plant Nutrition and Soils
22. During the initiation of nitrogen-fixation nodules, the Rhizobium bacteria release what
type of molecules to signal the host plant?
Chapter 38 – Plant Nutrition and Soils
23. During the initiation of nitrogen-fixation nodules, how do the Rhizobium bacteria enter
into the cortex of the root?
24. Why do nitrogen-fixation nodules contain large amounts of leghemoglobin?
25. When legumes with nitrogen-fixation nodules are given chemical fertilizers with high
nitrogen concentrations, they abandon support of the nodules and end the symbiosis. Why?
Chapter 38 – Plant Nutrition and Soils
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
o Symbiosis, which refers to two organisms that live together.
Gather Content
•
What do you already know about nitrogen-fixation nodules? How does it relate to the
question?
Consider Possibilities
•
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:
Chapter 38 – Plant Nutrition and Soils
26. Which of these insectivorous plants does not use an active trapping mechanism?
Chapter 38 – Plant Nutrition and Soils
27. Mycorrhizae are especially effective in helping plant roots uptake
28. If increased CO2 concentrations result in plant tissue that is less nutritious, which of these
is not a potential consequence for insect herbivores?
29. A plant cell with 64 available ATP molecules could split how many N2 molecules with
the assistance of nitrogenase?
Chapter 38 – Plant Nutrition and Soils
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about the energy required to split N2 molecules? How does it
relate to the question?
Consider Possibilities
•
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:
Chapter 38 – Plant Nutrition and Soils
30. What makes a mineral element essential for plant growth?
31. Why is it beneficial to plants that soil particles have negatively-charged surfaces?
Chapter 38 – Plant Nutrition and Soils
32. In magnesium-deficient plants the older leaves show more severe symptoms of chlorosis
which is a yellowing of the leaves than younger leaves. What is the best explanation?