In this article we will discuss about the stomatal mechanism in plant cells. The stomata are very minute apertures, usually found on the epidermis of the leaves. Each stoma is surrounded by two kidney-shaped special epidermal cells, known as guard cells. The stomata may be found in all the aerial parts of the plant. They are never found on its [...]
In this article we will discuss about the structure of plant cell which is covered by cell wall. This will also help you to draw the structure and diagram of plant cell. 1. A plant cell (Fig. 291) is more or less a polyhedral structure limited on the outside by a rigid limiting membrane called cell wall. 2. Inside, it [...]
The following points highlight the seven main organic molecules found in the plant cells. The organic molecules are: 1. Nucleic Acids 2. Proteins 3. Organic Acids 4. Carbohydrates 5. Lipids 6. Fatty Acids 7. Secondary Plant Products. Organic Molecule # 1. Nucleic Acids: Nucleic acids are polymers of nucleotides. Each nucleotide is made up of a base and a sugar [...]