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Melanie Grayson

Anatomy Weeks 1-6

TermDefinition
RNA Ribonucleic Acid - nucleic acid found in both nucleus and cytoplasm of cells; involved in a transmission of genic information from nucleus to cytoplasm and in cytoplasmic assembly of proteins.
rRNA ribosomal Ribonucleic Acid - form of RNA that makes up most of the structures (subunits) of the ribosome organelle of the cell
mRNA messenger Ribonucleic Acid - duplicate copy of a gene sequence on the DNA that passes from the nucleus to the cytoplasm; used by ribosomes to create specific proteins
tRNA transfer Ribonucleic Acid - molecules carry amino acids to the ribosome for placement in the sequence prescribed by the mRNA
Ribosome Organelles in the cytoplasm of cells that synthesizes proteins; sometimes called "protein factory"
Diffusion Natural phenomenon caused by the tendency of small particles to spread out evenly within any given space
Concentration Gradient A measurable difference in the concentration from one area to another.
Simple Diffusion When molecules pass directly through the phospholipid membrane
Semipermeable Membrane Allows water to pass through the membrane , but blocks the passage of at least one solute
Osmotic Pressure the pressure that prevents the movement of water by osmosis from pure water into the solution
Created by: mgrayson266
 

 



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