The Student Room Group

Biology GCSE Exam 2024

This question came up in the biology Exam on Thursday and it was really difficult to answer.
Question: A farmer is planting tomato plant in a greenhouse. The mean temperature of the greenhouse is 15 degrees Celsius. If the farmer installs a heating generator, the mean temperature will increase to 25 degrees Celsius.
Suggest two reasons why he should not install the generator. Do not refer to money.
Some answers (these may not be correct as I don't do the same exam board as you):
The tomatoes prefer a lower temperature to grow best (the optimum temperature of enzymes in the tomato plant is less than 25C, so the proteins have started to unravel/are denatured at this high temperature).
The risk of heat stress increases, which can stunt the tomato plant's growth.

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