Question

1. research it! why do plants turn colors (red, orange) in the fall? what does this have to do with the process of photosynthesis?

Explanation:

In the fall, as daylight hours decrease and temperatures drop, the production of chlorophyll (the green - pigment crucial for photosynthesis) in plants slows down and eventually stops. Other pigments like carotenoids (which give yellow, orange colors) and anthocyanins (red - purple) that were always present in the leaves but masked by chlorophyll become visible. This change in pigmentation is not directly related to the photosynthesis process itself but is a result of environmental factors affecting the plant's physiology related to photosynthesis.

Answer:

In the fall, plants turn colors because the production of chlorophyll (needed for photosynthesis) decreases due to shorter days and cooler temperatures, revealing other pigments like carotenoids and anthocyanins. This is related to environmental - induced changes in plant physiology rather than an active part of the photosynthesis process.