-
��Cell
Process by which a cell directs secretory or excretory vesicles out of the cell membrane
-
Absorption
Process of moving dissolved materials across the cell membrane into the cell
-
Active transport
Transport of molecules against a concentration gradient (from regions of low concentration to regions of high concentration) with the aid of a transport mechanism and energy from ATP
-
Active transport
Energy dependant transport mechanism that moves molecules against a concentration gradient
-
Adenosine triphosphate
Molecule involved in metabolic short term energy storage that cells use to store energy. The molecule contains three phosphates
-
ATP
- Molecule involved in metabolic short term energy storage that cells use to
- store energy. The molecule contains three phosphates
-
Blood plasma
Fluid portion of blood
-
Cell
Smallest unit of life that have necessary chemical functions that allow them to carry out specialized function
-
Cell membrane
Biochemical structure surrounding cell that is selectively permeable to various molecules and is involved in variety of cellular processes including cell adhesion, ion channel conductance and cell signaling
-
Cellular excretion
Process of removing waste and other non useful products from cell
-
Cholesterol
Waxy steroid metabolite that is an essential structural component of cell membranes, where it aids in membrane permeability and fluidity.
-
Cytoplasm
All organelle and other materials within the cell excluding the nucleus and nuclear membrane
-
Diffusion
Movement of particles across a membrane from an area of higher concentration to an area of lower concentration without energy input
-
Embedded protein
Protein that is associated with a membrane that usually acts as a carrier protein to aid in the transport of a molecule across the membrane
-
Cytosol
Liquid portion of the cytoplasm that is found outside of the organelles
-
Ensocytosis
Uptake of molecules by cells where the cell membrane surrounds the molecule then forms a vesicle that is released inside cell
-
Extracellular fluid
Fluids or liquids including solutes found outside of cells
-
Facilitated diffusion
Movement of molecules through a membrane down a concentrate gradient with the aid of a transmembrane protein channel
-
Filtration
Movement of ions across permeable cell membranes from a high concentrate gradient to a low concentrate gradient due to hydrostatic pressure
-
Glycolipid
lipid containing carbohydrate group, usually galactose
-
Glycoprotein
Proteins that have carbohydrate bound to them
-
Hepertonic
Condition where the concentration of impermeable solutes is greater inside the cell than the concentration of the impermeable solutes on the other sideof the membrane
-
Homeostasis
Regulation of internal environment to maintain a stable, constant condition
-
Hypotonic
Condition where the concentration of impermeable solutes is less inside the cell than the concentration of the impermeable solutes on the other side of the membrane
-
Interstitial fluid
Fluid found in the intercellular spaces (between cells) including the dissolved solutes
-
Intracellular fluid
Fluid or liquid including solutes found inside of cell.
-
Isotonic
Condition where the concentration of impermeable solutes is equal on both sides of the membrane
-
Membrane
Chemical structures that surrounds organelles, cells or tissues that serve as a selective barrier to specific molecules, or substances, thus controls what enters or leaves the structure.
-
Nucleus
Membrane enclosed cellular organelle that contains multiple DNA molecules that controls cell activity by regulating gene expression
-
Omosis
Diffusion of water molecules across a membrane in response to differences in solute (usually ions) concentration.
-
Organelle
Membrane bound structure excluding the nucleus found inside cell membranes that have specific functions
-
Passive transport
Diffusion across a plasma membrane from areas of high concentration to areas of lower concentration where the cell expends no energy
-
Peripheral protein
Membrane bound protein that functions as enzymes, communication and cell organization
-
Permeability
Property of a material that lets fluids (such as water or water vapor) to diffuse through it to another medium without being chemically or physically affected
-
Phagocytosis
Engulfing of solid particles by the cell membrane to form an internal vesicle
-
Phospholipid
lipid consisting of a glycerol bound to two fatty acids and a phosphate group.
-
Pinocytosis
Method of uptake of small particles and fluids are brought into the cell suspended within small vesicles
-
Plasma membrane
Biochemical structure surrounding cell that is selectively permeable to various molecules and is involved in variety of cellular processes including cell adhesion, ion channel conductance and cell signaling
-
Secondary active transport
Method of transport where primary molecule uptake does not require energy, but this molecule results in uptake of secondary molecule that requires energy for excretion
-
Secretion
Process of segregating, elaborating, and releasing molecules from a cell
-
Tonicity
Measure of the osmotic pressure of two solutions separated by a semipermeable membrane
-
Transmembrane protein
Cell membrane protein that spans the membrane and is generally used in transportation of molecules through membranes or transporting a message or signal through a membrane
|
|