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The word ‘plant' encompasses a wide range of living organisms, all of which belong to the kingdom Plantae and share a range of characteristics. There are about 300 thousand known species of plants. Due to the fact that plants adapt well to almost any climate, scientists needed a way to organize the different species. There's a system of classification for plants just as there is a system of classification fo animals. Green plants are special because they are able to make their own food through the process of photosynthesis.

Common Plant Characteristics

What do plants have in common? As stated earlier all green plants can make their own food through the process of photosynthesis. Photosynthesis is a biochemical process that connects plants. Photosynthesis can be defined as the process by which green plants make their own food is the presence of sunlight, the plants uses the energy from the Sun with the carbon dioxide from the air and water to create sugar molecules and oxygen. As with all of biology, there are exceptions to the rule and you will learn that not all plants survive through photosynthesis. Some plant species are parasites.

There are two big biochemical processes on Earth: Photosynthesis and Respiration . Photosynthesis stores the energy and respiration releases that energy. It all starts with the Sun. Plants are able to turn sunlight into energy but not directly. Plants are able to store energy in the chemical bonds of sugar molecules.



Plants also have cell walls that are made of cellulose. Cell walls serve as support structures by protecting individual cells and creating a larger structure for the entire plant. Cellulose is called a structural carbohydrate .