PLANT CELLARYA S. RAJ

INTRODUCTION

Cells are the basic unit of structure and function in all organisms

The Plant Cell consists of a more or less rigid cell wall and the protoplast - the contents of the cell

STRUCTURE

CELL WALL• Found in plants, fungi, & many protists• Surrounds plasma membranePLASMA MEMBRANE

It mediates the transport of substances into and out of the protoplasm

NUCLEUSThe nucleus is usually the most prominent

structure in the protoplast of eukaryote cells

COMPONENTS

PLASTIDS• Plastids are a characteristic component of plant

cells• Plastids are classified and named based on the

kinds of pigments they contain.• They are chloroplast, chromoplast and

leucoplast.

COMPONENTS

MITOCHONDRIA

• Mitochondria are the sites of cellular respiration - converting organic molecules to ATP the main immediate energy source for living eukaryote cells – so it is called as the power house of the cell

COMPONENTS

VACUOLES• Vacuoles are membrane bound organelles filled

with cell sap• Different kinds of vacuoles may have different

functions within the same cellENTOPLASMIC RETICULUM• The endoplasmic reticulum (ER) is a system of

membranous channels and saccules and it was studded with ribosomes and is the site of protein synthesis and processing.

GOLGI APPARATUS• The Golgi apparatus receives protein and also

lipid-filled vesicles from the ER, packages, processes, and distributes them within the cell.

• This organelle may also be involved in secretion.RIBOSOMES• Protein synthesis occurs at tiny organelles called

ribosomes.• Ribosomes can be found alone in the cytoplasm

and attached to the endoplasmic reticulum.

Plant cells are eukaryotic cells or cells with membrane bound nucleus. Generally, plant cells are larger than animal cells and are mostly similar in size and are rectangular or cube shaped.  Plant cells are similar to animal cells in being eukaryotic and they have similar cell organelles.

CONCLUSION