Answer
Organelles are specialized cellular structures that have specific shapes and perform specific functions. Some organelles are enclosed in membranes and some are not.
Among the major eukaryotic organelles are the nucleus, centrioles, mitochondria, golgi bodies, lysosomes, ribosomes, and cilia. Organelles vary greatly in shape, and size, and while some are membrane bound, others are not. They carry out many functions that facilitate growth, maintenance, repair and reproduction. The nucleus which is close to the center of many cells is the most important organelle. It transmits hereditary information which directs the life of the cells.. The endosplasmic reticulum, ribosomes and golgi bodies serve the functions related to the synthesis and packaging of a wide range of essential substances from structural proteins to steroids, lipids, enzymes and hormones. Vesicles are temporary membrane bound sacs are important in transport, exocytosis and endocytosis. Mitochondria are the indispensable power generating centers of the cell that produce most of the ATP molecules that constitute the energy currency of the cell.
Work Step by Step
Lysosomes, peroxisomes, and autophagosomes help cells get rid of unwanted substances and entities . Cilia help move fluids along surfaces and the flagellum of sperms serves an important purpose in enabling the sperms to transit the female reproductive tract from cervix to fallopian tube.
