Final answer:
The rate of carbohydrate production can affect the rate of photosynthesis, with increases potentially indicating active photosynthesis. Overproduction may lead to feedback inhibition and slow photosynthesis. The Calvin cycle produces G3P and RuBP, and closing stomata to conserve water on hot days can inhibit photosynthesis due to reduced CO2.
Step-by-step explanation:
The rate of carbohydrate (glucose) production can impact the rate of photosynthesis in several ways. If carbohydrate production increases, it may indicate that the photosynthetic machinery of the plant is highly active, suggesting increased photosynthetic rates. However, if the plant's carbohydrate production reaches a point where it exceeds the plant's needs or storage capacity, feedback inhibition may occur, leading to a slowdown in the photosynthetic process.
The Calvin cycle is a significant part of photosynthesis where carbon dioxide is fixed into organic molecules. The products of the Calvin cycle include glyceraldehyde 3-phosphate (G3P), which is a precursor to glucose and other carbohydrates, and the regeneration of ribulose bisphosphate (RuBP) which is necessary for the cycle to continue.
During hot, dry conditions, plants can close their stomata to conserve water, leading to a reduction in the availability of carbon dioxide, which is necessary for photosynthesis. This, in turn, will inhibit the rate of photosynthesis.