CHLOROPHYLL
No. All they need for any carbohydrate is sunlight, CO2, and water. The soil (or rather the salts that it contains) is needed to make proteins.
Plants cannot make protein from pure carbohydrate, because proteins contain nitrogen and sometimes sulphur. They get the nitrogen which they need from the nitrates in the soil. They get the sulphur from sulphates in the soil.
Carbohydrates, proteins, and fats.
Very little protein is dissolved in the water that plants absorb from the soil. Plants mostly manufacture their own proteins.
water, sun, soil. :)
The main substance plants, just like all organisms, need is glucose which they produce through photosynthesis and then release energy by respiration. Others they need are nitrates to form proteins for growth, magnesium (and potassium) to make chloroplasts (keeps them green), phosphorus to make DNA
humans need soil to grow trees to get oxygen and where would we be without oxygen and soil helps plants grow and not all plants need soil air plants do not need soil.
All Plants need Nitrogen... Plants need nitrogen in the form of nitrates and ammonia to make proteins.All plants. Nitrogen is required for lush, healthy green leaves. Some plants require more nitrogen than others.
Plants need water and carbon dioxide to make their food. They also need sunlight and rich nutrients from the soil.
Plants need a fertilizer (and soil) called potting mix.
TAE Answer 2: All plants are capable of performing photosynthesis, some species like drosera additionaly hunt for insects for proteins. They are usually found in swamps, where there is not much nitrogen needed to make proteins in the soil, so they have to get it from other sources.
Plants get the nutrients that they need from the soil and water. They get the ingredients to make their own food through photosynthesis.