It's the comment equivalent of the 'Lorem Ipsum' dummy text beloved of the printing and typesetting industry, when they need specimen words to illustrate how a piece of text would look: Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua (it's not Latin, although it has roots in that language).
Something similar happens in plants. When the rate of respiration is more than the rate of photosynthesis, the biomolecules present in plants break down to compensate the reduced rate of photosynthesis. This results in loss of dry weight of the plant. Views Â· View Upvotes.
They are actually the complete opposite! Photosynthesis is when energy, carbon dioxide and water react to produce glucose and oxygen. It is an endothermic reaction (takes in more energy than it gives off). Respiration is the process of producing energy from glucose. It uses glucose and oxygen to give water, carbon dioxide and energy (this making it exothermic). In plants, they make their own glucose using the suns energy, then respire to allow them to use the glucose for energy they can use.