Question detail
Why are auxins considered beneficial in weed management?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Plant hormones (biology only)
Question
- A. They promote the growth of all plants.
- B. They can reduce the need for mechanical weeding.
- C. They increase the yield of all crops.
- D. They enhance the flavor of fruits.
Answer
The correct option is They can reduce the need for mechanical weeding.. This answer is correct because it matches the approved learning objective to describe (HT only) the use of auxins as selective weed killers in the subtopic Use of plant hormones (HT only).
Explanation
The correct option is They can reduce the need for mechanical weeding.. They can reduce the need for mechanical weeding. is correct because it directly supports the approved learning objective to describe (HT only) the use of auxins as selective weed killers. This belongs to the subtopic Use of plant hormones (HT only) within Plant hormones (biology only), so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Use of plant hormones (HT only).
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.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.