Question

what happens to photosynthesis in a plant if the temperature is too high or too low, meaning that the temperature is outside of the plants optimal (best) temperature range? photosynthesis will stop. photosynthesis will speed up. photosynthesis will not change.

Explanation:

Photosynthesis relies on enzymes, which function only within a narrow optimal temperature range. When temperatures are too high, enzymes denature, losing their functional structure; when too low, enzyme activity slows drastically. In both cases, the process cannot proceed normally and will stop.

Answer:

Photosynthesis will stop.