How can we explain that the roots of some plants, such as orchids, can turn green in the light?

1) Orchid roots – these are subordinate roots. The root cells contain leukoplasts, can turn into chloroplasts.
2) To increase the intensity of the photosynthesis process, chlorophyll is formed in the root cells and they begin to synthesize organic substances.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.