Chapter 15 Vocab Flashcards
one of several compartments with a specialized function
membrane enclosed organelle
a type of endocytosis in which the cell ingests extracellular fluid and its dissolved solutes
pinocytosis
small membrane-bound spaces in most plant and animal cells that carry materials between organelles in the cell
transport vesicle
the initial stage of receptor-mediated endocytosis
coated vesicle
a stretch of amino acids on polypeptides that targets proteins to specific destinations in eukaryotic cells
signal sequence
an extensive membranous network in eukaryotic cells composed of ribosome-studded (rough) and ribosome-free (smooth) regions
endoplasmic reticulum
an organelle in eukaryotic cell consisting of stacks of membranes that modify, store, and route proteins
golgi apparatus
a membrane-enclosed bag of hydrolytic enzymes found in the cytoplasm of eukaryotic cells
lysosome
the semi fluid portion of the cytoplasm
cytosol
openings in the membrane of a cell’s nuclear envelope that allow the exchange of materials between the nucleus and the cytoplasm
nuclear pore
the membrane in eukaryotes that encloses the nucleus, separating it from the cytoplasm
nuclear envelope
membrane packages for transporting molecule destined to leave the cell
secretory vesicle
the protein that helps form coated vesicles
clathrin
a form of endocytosis in which white blood cells surround and engulf invading bacteria of viruses
phagocytosis
a family of membrane proteins that aid in vesicle fusion
snare
