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A student investigated the growth of lateral shoots in bean plants - VCE - SSCE Biology - Question 9 - 2006 - Paper 1
Question 9
A student investigated the growth of lateral shoots in bean plants. Two groups of 20 plants, all identical, were used. One group (group X) had their apical buds remo... show full transcript
Worked Solution & Example Answer:A student investigated the growth of lateral shoots in bean plants - VCE - SSCE Biology - Question 9 - 2006 - Paper 1
Step 1
C. apical buds produce a substance that inhibits lateral shoot growth.
Answer
Based on the data shown in the graph, group X, which had its apical buds removed, displayed a significantly higher average length of lateral shoots as compared to group Y, which retained its apical buds. This suggests that the presence of the apical bud inhibits the growth of lateral shoots. Thus, we can conclude that apical buds produce a substance that inhibits lateral shoot growth. This aligns with the observations made during the experiment, providing strong evidence for option C.