mitochondria and the Golgi apparatus i hope that's helps
Answer:
It is important because plants respond to light depend, logically enough, on the plant's ability to sense light. Phototropism is a directional response that allows plants to grow towards, or in some cases away from, a source of light. Photoperiodism is the regulation of physiology or development in response to day length.
I believe the answer you're looking for is fertilization. :D
Heliocentric theory thank you for your time .