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10 (a) Figure 18 shows an investigation into the growth of plant shoots - Edexcel - GCSE Biology - Question 10 - 2018 - Paper 1
Question 10
10 (a) Figure 18 shows an investigation into the growth of plant shoots. Experiment 1: The tip of a shoot was removed from the plant. There was no growth in the sho... show full transcript
Worked Solution & Example Answer:10 (a) Figure 18 shows an investigation into the growth of plant shoots - Edexcel - GCSE Biology - Question 10 - 2018 - Paper 1
Step 1
Give one variable that must have been controlled for the plant shoot to grow vertically, as shown in experiment 2.
Answer
One variable that must have been controlled is the direction of light. Ensuring that all plant shoots receive equal light intensity around the plant is essential for vertical growth.