Cell Organelles

Rough Endoplasmic Reticulum

An endomembrane system covered with ribosomes where many proteins for transport are assembled.

Smooth Endoplasmic Reticulum

An endomembrane system where lipids are synthesized, calcium levels are regulated, and toxic substances are broken down.

Centriole

Cell organelle that aids in cell division in animal cells only

Ribosome

Cytoplasmic organelles at which proteins are synthesized.

Cilia

Hairlike projections that extend from the plasma membrane and are used for locomotion

Neucleolus

Site for ribosome assembly, found in the center of animal cell.

Vesicle

Small membrane-bound sac that functions in moving products into, out of, and within a cell.

Neucleus

The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.

Golgi body

a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.

Mitochondrion

bean-shaped organelle that supplies energy to the cell and has its own ribosomes and DNA.

Lysosome

cell organelle filled with enzymes needed to break down certain materials in the cell

Cytoskeleton

network of protein filaments within some cells that helps the cell maintain its shape and is involved in many forms of cell movement

Chloroplast

organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy

Cytoplasm

A jellylike fluid inside the cell in which the organelles are suspended

Flagellum

A long, hairlike structure that grows out of a cell and enables the cell to move.

cell wall

A rigid structure that surrounds the cell membrane and provides support to the cell

plasma membrane

A selectively-permeable phospholipid bilayer forming the boundary of the cells

Centrosome

A structure in animal cells containing centrioles from which the spindle fibers develop.

Endospore

A thick-walled protective spore that forms inside a bacterial cell and resists harsh conditions.