Question

why the rate of respiration is higher in germinating seeds? ​

Answer 1

During germination, seeds go through cellular respiration in order to obtain the energy they need to develop and grow. The necessary resources and abilities for photosynthetic energy synthesis are not present in seeds.

Functions of Cellular Respiration:

• Cells can transform available nutritional resources into energy through cellular respiration activities.
• Plant seeds only breathe sufficiently during periods of dormancy to keep food or nutrient supplies in a specialised seed layer known as the endosperm.
• When a plant ovule, or ovary, is initially fertilised, a double fertilisation process occurs, producing endosperm structures in flowering plants.
• During the dormant stage, the endosperm effectively meets the seed's nutritional requirements and performs essential cellular respiration processes.
• As plant growth processes begin, the seed faces high energy demands at the beginning of germination.
• In order to support the cell-building processes needed to crack open the seed and create the earliest root and stem structures, cellular respiration rates rise.

As a result, seeds that are germinating consume a lot of oxygen because they are alive and require more oxygen to thrive.

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