Answer:
Excretion or waste elimination
Explanation:
Photosynthesis is a metabolic process carried out by the cells of plant in order to synthesize their own food in form of sugar (glucose). The photosynthetic process combines carbondioxide (CO2), which enters through the STOMATA on their own leaves, and water (H2O) to produce glucose and oxygen gas.
Photosynthesis, which occurs in the Chloroplast organnelle of plant cells, gives off oxygen gas (O2) as a product. The oxygen, which serves as a waste product of photosynthesis, is released from the plant via the same STOMATA openings on their leaves.
The chemical equation is as follows:
6CO2 + 6H2O ----> C6H12O6 + 6O2
Hence, at the organism level (plant), the process of excretion or waste removal is carried out by the plant.
