the movement of ions or molecules across a cell membrane into a region of higher concentration.
ATP
Nota:
energy for a cell
Gradient
Nota:
the increase or decrease of a magnitude of a property (e.g. temperature, pressure, or concentration) observed in passing from one point to another.
Cytoplasm
Nota:
material between nucleus and the cell membrane
Eukaryote
Nota:
having cells with "good" or membrane-bound nuclei.
Osmosis
Nota:
a process in which molecules pass through a semi-permeable membrane, from a less concentrated solution into a more concentrated one, thus equalizing the concentrations of both side
Passive Transport
Nota:
transport of a substance across a cell membrane by diffusion; expenditure of energy is not required.
Facilitated Diffusion
Nota:
diffusion through a membrane with a carrier protein.
Prokaryote
Nota:
having cells that lack membrane-bound nuclei
Vacuole
Nota:
a small storage organelle in a cell that transports protein.
Anti-Codon
Nota:
a sequence of 3 nucleotides forming a unit of genetic code in a transfer RNA molecule, corresponding to a complementary codon in the messenger RNA.
Ribosome
Nota:
protein factories found all over the cytoplasm
Mitochondria
Nota:
an organelle found in large numbers in most cells, in which the biochemical process processes of respiration and energy production occur.
Equilibrium
Nota:
a balance; equal amounts everywhere
Protein Synthesis
Nota:
the process in which cells generate protein; it is balanced by the loss of protein via degradation or export
Chloroplast
Nota:
the structure that uses the Sun's energy to make sugar