Histology Flashcards
Cell Membrane
Def: a lipid bilayer that surrounds the cell
Func: it protects the cells and regulates the transport of substances in and out of cell
nucleus
Def: organelle bound by a double membrane called nuclear membrane
Func: it contains the genetic material of the cell. Control center of the cell
nucleolus
Def: spherical structure is rich in RNA found within the nucleus
Func: manufacture and assemble ribosomes
cytoplasm
Def: fluid portion of the cell, excluding the nucleus
Func: suspend cell organelles
Mitochondria
Def: sasuage shaped structure with two membranes. The inner membrane is arranged into folds called cristae
Func: energy production powerhouse of the cell
Ribosomes
Def: small granules found in the RER or attached to the RER
Func: protein synthesis
Smooth endoplasmic reticulum (SER)
Def: Membranous tubular structure
Func: synthesis of lipids
Rough endoplasmic reticulum (RER)
Def: Membranous tubular structure with ribosomes attached to it
Func: Synthesis of protein
Golgi apparatus
Def: stacks of membrane sacs
Func: Pacakage proteins into vesicles. Warehouse of the cell
Lysosomes
Def: Vesicles containing lysozyme
Func: Digestion/ break down of large particles
Secretory vesicles
Def: Membrane bound sacs
Func: contain substances to be secreated outside the cell
