The Cellular Cytoskeleton

What is the Cellular Cytoskeleton?

The cellular cytoskeleton is a complex, dynamic network of interlinking protein filaments present in the cytoplasm of all cells. Important filaments of the cytoskeleton include: Actin microfilamentsIntermediate filaments Note that examples of intermediate filaments include: Lamin A, B, and CVimentinDesminNeurofilamentsGlial…
Transcytosis

What is Transcytosis?

Transcytosis is a type of transcellular transport in which various macromolecules are transported across the interior of a cell.
Exocytosis

What is Exocytosis?

Exocytosis is a form of active transport and bulk transport in which a cell transports molecules out of the cell. It requires the use of energy to transport material.
Endocytosis

What is Endocytosis?

Endocytosis is the process by which cells take in substances from outside of the cell by engulfing them in a vesicle.
Receptor Mediated Endocytosis

What is Receptor Mediated Uptake?

Receptor mediated uptake involves a specific receptor on the cell surface binds tightly to the extracellular macromolecule (the ligand) that it recognizes. The plasma-membrane region containing the receptor-ligand complex then undergoes endocytosis, becoming a transport vesicle.