Question detail
Explain how auxins function as selective weed killers and discuss one potential benefit and one risk associated with their use.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Plant hormones (biology only)
Question
Explain how auxins function as selective weed killers and discuss one potential benefit and one risk associated with their use.
Answer
Auxins function as selective weed killers by causing rapid growth in certain plants, leading to their death while allowing crops to thrive. A potential benefit is increased crop yield due to reduced competition from weeds, while a risk is the possibility of harming non-target plant species if not applied carefully.
Explanation
This answer is strong as it not only explains the mechanism of auxins as weed killers but also evaluates their use by discussing both benefits and risks. The question tests the student's ability to apply knowledge and analyze the implications of using plant hormones.
Common mistake
Misunderstanding the Mechanism of Action
Students often confuse the action of auxins as selective weed killers with their role in promoting growth in all plants, failing to recognize that auxins target specific plants.
Students should focus on understanding that auxins disrupt the growth patterns of broadleaf weeds while not affecting grasses, emphasizing the selective nature of auxins in weed control.
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