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Figure 9 shows a plant with plantlets growing from it - Edexcel - GCSE Biology - Question 5 - 2022 - Paper 1
Question 5
Figure 9 shows a plant with plantlets growing from it. If a plantlet touches soil, it will grow roots and become a new plant. This is an example of asexual reprodu... show full transcript
Worked Solution & Example Answer:Figure 9 shows a plant with plantlets growing from it - Edexcel - GCSE Biology - Question 5 - 2022 - Paper 1
Step 1
Step 2
Describe the effect of temperature on the number of plantlets produced by these plants.
Answer
The number of plantlets produced by these plants is influenced by temperature, as plantlets are not produced at lower temperatures (5 °C and 10 °C) and zero plantlets are produced at higher temperature (30 °C). The optimal temperature for producing plantlets is around 20 °C, where the maximum of 12 plantlets are produced, indicating a positive correlation between the temperature increase up to this point and plantlet production.
Step 3
Step 4
Explain one advantage of sexual reproduction.
Answer
One advantage of sexual reproduction is that it allows for greater genetic variation among offspring. This variation can lead to improved adaptability in changing environments, as the offspring may inherit beneficial traits from both parent plants, enhancing their survival potential.
Step 5
Explain which plants the gardener should use.
Answer
The gardener should select plants L and M. Plant L has large size leaves and plant M has striped leaves. Combining these traits through selective breeding would potentially produce a plant with large green and white striped leaves, as well as retaining the desired characteristics of the flowers.