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A plant is placed near a window - OCR Gateway - GCSE Biology - Question 1 - 2023 - Paper 1
Question 1
A plant is placed near a window. The plant grows towards the light. Which hormone is responsible for this growth movement? A Auxin B Insulin C Oestrogen D Test... show full transcript
Worked Solution & Example Answer:A plant is placed near a window - OCR Gateway - GCSE Biology - Question 1 - 2023 - Paper 1
Step 1
Which hormone is responsible for this growth movement?
Answer
The hormone responsible for the growth movement of the plant towards the light is Auxin. Auxin is a plant hormone that regulates various aspects of plant growth and development, particularly in promoting cell elongation. When a plant is exposed to light, Auxin accumulates on the shaded side, causing those cells to elongate more than those on the light-exposed side, resulting in the plant bending towards the light source.