What are the roles of different organelles in a cell?

Functions of different cell organelles:

Nucleus: contains all the genetic material, acts as information center and tells all the organelles what to do, RNA transcription.

Mitochondria: generates energy through respiration

Endoplasmic recticulum (rough): transport and storage of material; (smooth ER): creation of lipids and fats

Ribosome: protein creation by RNA translation  

Golgi apparatus: responsible for synthesis, packing and processing of proteins

Chloroplast: responsible for glucose creation (by photosynthesis)

Cytoplasm: is region where all chemical reactions take place  and is the jelly like fluid that holds all the organelles in place inside of the cell

lysosome: responsible for breakdown of larger molecules

Flagellum (or flagella): tail like organelle, assists motion

Vacuole: helps in maintenance of homeostasis  and stores waste products or other materials like water / food

cell membrane: separates cell from the rest of the environment  and controls what comes in and out of the cell

cytoskeleton: supports cell structure

There are a number of other organelles as well but i just named some of the common ones.

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