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multicellular membrane bound organelles.

Plant Cell Structure

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A plant cells are eukaryotic cells, with the presence of true nucleus, multicellular large and advanced membrane bound organelles. These plant cells are quite different from animal cells like in shape and other few organelles which are only found in animal cells but are absent in plant cells. Based on structure and functions, plant cells comprise of:

Plant Cell Structure

Cell wall: It is the outer layer of a plant cell, which helps a providing the shape and strength to the entire plant. A cell wall is composed of cellulose that protects and supports the plant to grow.

Cell membrane: It is a biological membrane that separates living cell organelles from non living structures. This membrane plays a vital role in helping a cell to communicate with the external environment and also in transporting proteins and other molecules throughout the cell.
Chloroplasts: They are green coloured oval shaped double membrane organelles, which are the sites of photosynthesis. The green colour pigment (chlorophyll) present in the leaves helps plants in absorbing solar energy to prepare food.
Cytoplasm: A jelly types double membrane organelles, which are present in the inner region of a cell. It helps by keeping a cell in stable and protects the cell organelles by separating them from each other.
Lysosomes: They are single membrane round organelles, which helps in digesting proteins, fats and carbohydrates. It also helps in excretion of undigested materials from the plant cells. It also helps in cell renewal and breakdown of large cells into smaller cells, old and dead cells.
Golgi Bodies (or) Gogi complex: The sac like structures, which are present in a cell to manufacture, store, packing and shipping the materials throughout the cell.
 Endoplasmic reticulum: The network of membrane, which helps in transporting materials around the cell. It forms a connection between nuclear envelope and the cell membrane of a cell.
Mitochondria: They are rod shaped organelles, plays an important role in releasing energy and they are the powerhouse of a cell. In plant cell, they are the sites of cellular respiration.
Nucleus: They are large, oval shaped organelle that contains one or more nucleoli with DNA. The main role of nucleus in plant cell is it controls all types of cellular activities.
Nucleolus: They are the spherical membranes, present inside the nucleus. This membrane contains RNA, which is used to build proteins. They are the sites of RNA synthesis.

Vacuole: They are the fluid sacs, which are present in large numbers in plant cells. The main function is this membrane is to store food and other waste materials. Vacuoles are the largest organelles present in the plant cells.