Question detail
How do auxins function as rooting powders?
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. By inhibiting root growth
- B. By promoting cell elongation
- C. By stimulating root formation
- D. By enhancing leaf growth
Answer
The correct option is By stimulating root formation. This answer is correct because it matches the approved learning objective to describe (HT only) the use of auxins as rooting powders for plant cuttings in the subtopic Use of plant hormones (HT only).
Explanation
The correct option is By stimulating root formation. By stimulating root formation is correct because it directly supports the approved learning objective to describe (HT only) the use of auxins as rooting powders for plant cuttings. 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 Auxin Function
Students often confuse the role of auxins in rooting powders with their role in other plant processes, such as growth direction.
Focus on the specific function of auxins in promoting root development when used as rooting powders, and differentiate this from their roles in other growth responses.
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