A plant cell consists of three distinct components: (i) Cell wall (ii) Protoplasm, and (iii) Vacuole. The protoplasm is the living part of the cell. It is externally bounded by cell membrane or plasma membrane. The cytoplasm contains several cell organelles namely mitochondria, plastids, ribosomes, endoplasmic reticulum, lysosomes etc. (Fig. 2.1). (i) Cell wall: Cell wall is the non-living protective layer outside the plasma membrane in the plant cells, bacteria, fungi and algae. The ... Plant Cell Definition, Structure, Function, Diagram & Types Plant cells are eukaryotic cells with a true nucleus along with specialized structures called organelles that carry out certain specific functions. A plant cell is the basic unit of all plants. Plant cells, like animal cells, are eukaryotic, meaning they have a membrane-bound nucleus and organelles. Their characteristic cell wall is composed of cellulose, and they contain chloroplasts for photosynthesis. Diagrams are commonly used in textbooks and exams to test understanding of the plant cell model. Plant cells possess certain unique structures that are not present in animal cells: Plant Cell Wall: Provides mechanical strength and protection; made from cellulose.
