Cells Flashcards
Nucleus
Control center and contains the instructions to build nearly all body’s protein.
Isotonic
Have the same concentration / equal of nonpenetrating solutes .
Membrane Lipids
Form the fabric of the membrane (polar hydrophilic head, non polar hydrophilic tail).
Tight Junction
No enters and exit
Tonicity
Refers to the ability of a solution to change the shape of cells by altering the cells ; internal water volume.
ECM (Extracellular Matrix)
Most abundant material, jellylike substance composed of proteins & polysaccharides.
Hypertonic
Higher concentration of nonpenetrating solutes.
Pinocytosis
Water eating
Microfilaments
Defines the shape of the cell.
Contact signaling
Come Together. It happens when two cells in your body “talk” to each other by touching.
ECF (Extracellular Fluid)
Includes interstitial fluid, blood plasma, cerebrospinal fluid.
Intracellular
Inside the cell
Cells
Smallest unit of life.
Plasma Membrane
Selectively permeable barrier.
Gap Junctions
Communicating junctions, allow molecules to pass through.
Desmosomes
Anchoring Junctions
Cellular Secretion
Substances that aid in digestion (gastric fluid) or act as lubricants (saliva).
Microvilli (Tummy)
Tiny, finger-like extensions of the plasma membrane that project from an exposed cell surface.
Intermediate filaments
Mechanical strength to the cells.
Cell Junction
Allow neighboring cells to adhere & communicate, inhibit or aid movement between the cell.
Chemical signaling
Use chemicals to communicate.
Extracellular Membrane
Substances contributing to body mass are found outside of the cells.
Ribosome
Site of Protein Synthesis
Membrane Proteins
Allows communication with its environment, responsible for specialized membrane function.
