STRUCTURE OF EUKARYOTIC CELLS

Describe the organelles found in eukaryotic cells.

Cell nucleus

an organelle enclosed by a double membrane, serving as the control center for the cell's vital activities.

Ribosome

is an organelle lacking a surrounding membrane, which functions in protein synthesis.They can be found floating freely in the cytoplasm or attached to the endoplasmic reticulum.

Rough endoplasmic reticulum

There are ribosomes attached to the membrane surface, which function to synthesize proteins.

Smooth endoplasmic reticulum

has few or no ribosomes attached to the membrane surface; contains enzymes involved in lipid synthesis, sugar metabolism, detoxification, and the storage of Ca2+ ions.

Golgi apparatus

is a single-membrane-bound organelle that functions to process, assemble, and package protein and lipid molecules, and then distribute them to where they are needed.

Lysosome

derived from the Golgi apparatus, it is a single-membrane-bound organelle that contains various hydrolytic enzymes.