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Cellular Level
week 3
| Term | Definition |
|---|---|
| CELL MEMBRANE | membrane surrounding all animal cells, composed of a lipid bilayer interspersed with various molecules; also known as plasma membrane |
| CHROMOSOME | condensed version of chromatin |
| CYTOPLASM | internal material between the cell membrane and nucleus of a cell |
| GENE | functional length of DNA that provides the genetic information necessary to build a protein |
| GENOME | entire complement of an organism’s DNA; found within virtually every cell |
| GLYCOPROTEIN | protein that has one or more carbohydrates attached |
| HOMOLOGOUS | describes two copies of the same chromosome (not identical), one inherited from each parent |
| MITOCHONDRION | one of the cellular organelles bound by a double lipid bilayer that function primarily in the production of cellular energy (ATP) |
| MITOSIS | division of genetic material, during which the cell nucleus breaks down and two new, fully functional, nuclei are formed |
| MUTATION | change in the nucleotide sequence in a gene within a cell’s DNA |
| NUCLEUS | cell’s central organelle; contains the cell’s DNA |
| OSMOSIS | diffusion of water molecules down their concentration gradient across a selectively permeable membrane |
| STEM CELL | cell that is oligo-, multi-, or pleuripotent that has the ability to produce additional stem cells rather than becoming further specialized |