Chapter 3 Study Cards Part 2
Cell Junctions
Multi-protein structures that join or connect neighboring cells
Tight Junctions
Membranes of neighboring cells are pressed together, preventing leakage of extracellular fluid
Desmosomes
Anchoring junctions that prevent cells from being pulled apart
Gap Junctions
Points that provide cytoplasmic channels from one cell to another with special membrane
proteins.
Nucleus
Membrane-bound, contains DNA, surrounded by nuclear envelope
Nucleolus
Site of ribosome production, contained within the nucleus
Mitochondria
Membrane-bound, responsible for ATP production, outer membrane encloses the matrix and
cristae
Ribosome
Site of protein production, composed by ribosomal RNA & protein
Cell Junctions
Multi-protein structures that join or connect neighboring cells
Tight Junctions
Membranes of neighboring cells are pressed together, preventing leakage of extracellular fluid
Desmosomes
Anchoring junctions that prevent cells from being pulled apart
Gap Junctions
Points that provide cytoplasmic channels from one cell to another with special membrane
proteins.
Nucleus
Membrane-bound, contains DNA, surrounded by nuclear envelope
Nucleolus
Site of ribosome production, contained within the nucleus
Mitochondria
Membrane-bound, responsible for ATP production, outer membrane encloses the matrix and
cristae
Ribosome
Site of protein production, composed by ribosomal RNA & protein
