Terms in this set (16)
A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement
Specialized proteins that use energy to change shape and move cells or structures (vesicles) within cells.
A hollow rod composed of tubulin proteins that makes up part of the cytoskeleton in all eukaryotic cells and is found in cilia and flagella.
a cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
A long, whip-like filament that helps in cell motility. Many bacteria are flagellated, and sperm are flagellated.
Hairlike projections that extend from the plasma membrane and are used for locomotion
anchors the cilium or flagellum
A globular protein that links into chains, two of which twist helically about each other, forming microfilaments in muscle and other contractile elements in cells.
A protein present in muscle fibers that aids in contraction and makes up the majority of muscle fiber
Threadlike proteins in the cell's cytoskeleton that are roughly twice as thick as microfilaments;
specialized for bearing tension within the cell.
primary cell wall
In plants, a relatively thin and flexible layer that surrounds the plasma membrane of a young cell.
secondary cell wall
In plant cells, a strong and durable matrix that is often deposited in several laminated layers around the plasma membrane and provides protection and support.
a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells.
A glycoprotein in the extracellular matrix of animal cells that forms strong fibers, found extensively in connective tissue and bone; the most abundant protein in the animal kingdom.
A transmembrane protein that interconnects the extracellular matrix and the cytoskeleton.
An open channel in the cell wall of plants through which strands of cytosol connect from adjacent cells