Nutrition and Food Production in Plants
Nutrition is the process in which an organism (even if it is a plant or organism) intakes food and makes it to be used by the body and then use it.
Why should living organisms take food?
- To make new body element for development and growth
- To maintain the wear and tear of damaged cells
- To make the power to fight diseases
- To provide energy for the body
- To make many types of enzymes and hormones for the body
Photosynthesis or the process of making food in presence of sunlight is only found in green plants. These plants make their food with the help of chlorophyll, sunlight and carbon dioxide present in air. They also prepare glucose by absorbing water from the soil. Sunlight or light can be used from many sources as well. But mostly in open nature, farming or forest, the light of the sun is present is sunlight which is used in photosynthesis.
Two main products - glucose is formed from food and oxygen - life giving gas are produced in photosynthesis. These are the dual benefits. Plants get food for themselves and plants also make food for other organisms and secondly oxygen which is essential for all organisms is also produced.
Food is made by leaves but how does it reaches to other parts of the plants?
Leaves have veins which reach their small branches and every cell. These veins absorb water through stem and to leaves. Glucose made in the cell of leaves reach stem and other parts of plant through these veins. It spreads to whole plant from top to bottom.