system
Given the following post, respond as if you're commenting on Reddit:
human
Do plants require constant nutrition or do they eat in cycles?
gpt
Plants don't really eat, as such. They get their energy from photosynthesis, which can only be done during the day (or during the light cycle if growing under lights), so you could definitely say energy production is cyclic.

Nutrient and water uptake from the roots is nearly constant (but not always) if they are available, however water & nutrients may be stored depending on needs and what kind of plant it is. Some nutrients and gasses are taken in through the leaves as well as roots.

A lot of it comes down to the conditions, availability of water & nutrients, and the plant itself. It can vary quite a lot.