Exam (elaborations)
OCR A Level Biology Paper 1 (2022 Priority Topics) Questions with Answers
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Auxin is a plant hormone produced in the shoot tip. Auxin causes cell elongation and travels down the stem from the tip. Auxin is destroyed by sunlight. Explain how this leads to positive phototropism in the plant. Correct Answer Auxin is broken down on the sunny side of the plant. Cells on the sha...
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