A lipid bilayer composed of phospholipds and cholesterol with proteins that extend across or are embedded in either surface of the lipid bilayer.
Cytoplasm aka Cytosol (Structure)
Water with dissolved ions and molecules as well colloid with suspended proteins.
Cytoskeleton Micro-tubules (Structure)
Part of the cytoplasm. Hollow cylinders composed of the protein tubulin. 25nm in diameter
Actin Filaments (Structure)
Part of the cytoplasm. Small fibrils of the protein actin. 8nm in diameter
Intermediate Filaments (Structure)
Part of the cytoplasm. Protein fibers. 10 nm in diameter.
Cytoplasmic Inclusions (Structure)
Part of the cytoplasm. Aggregates of molecules either made or ingested by the cell; may be membrane -bound.
Plasma Membrane (Function)
It is the outer boundary of cells that controls the entry and exit of substances in and out of cells. Contains Receptor molecules that function in inter-cellular communication. Contains Marker molecules that enable cells to recognize one another.
Part of the cytoplasm. It contains enzymes that catalyze decomposition and synthesis of reactions. ATP is produced in glycolysis reactions.
What makes up the cytosol? (not organelles)
Cytoskeleton Microtubules; Actin Filaments; Intermediate Fibers, and Cytoplasmic Inclusions
Cytoskeleton Micro-tubules (Function)
Part of the cytoplasm. It provides support to cytoplasm and form centrioles, spindle fibers, flagella, and cilia. It is responsible for the movement of structures in the cell.
Actin Filaments (Function)
Part of the cytoplasm. Provides structural support to cells, support microvilli, responsible for cell movement.
Part of the cytoplasm. Provides structural support to cells.
Cytoplasmic Inclusions (Function)
The function depends on the molecules: energy storage (lipids, glycogen); oxygen transport (hemoglobin); skin color (melanin) and others.