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Which experiment shows that respiration in seeds produces heat?
AIodine test on a destarched leaf in light
BVacuum flask experiment with germinating seeds
CBell jar experiment using potassium hydroxide
DGanong's potometer with a transpiring twig
Answer & Solution
Correct answer: B. Vacuum flask experiment with germinating seeds
1. The chapter describes a vacuum flask of germinating seeds with a thermometer.
2. Within hours the thermometer reads a higher temperature than the control.
3. Heat comes from energy released during respiration.
4. So option A is the right experiment.
_Source: Selina Concise Biology Class 9, Ch 7 Respiration in Plants (Mistral OCR'd PDF), section on heat production_
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