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U3 Cells & Tissue
| Term | Definition |
|---|---|
| amino acids | the building blocks of proteins |
| ATP | adenosine triphosphate; a nucleotide composed of an adenine base, a sugar, and 3 phosphate groups |
| base pairs | pairs of complementary nucleic acids that is A and T or C and G |
| DNA | a polymer of nucleotides with the bases adenosine, guanine, cytosine and thymine; deoxyribonucleic acid |
| enzymes | proteins that sped up specific biological reactions |
| fatty acid | a hydrocarbon chain with carboxylic acid group at one end |
| glucose | the main form of sugar that circulates in the blood |
| glycogen | a polymer of glucose found in animals; stored form glucose |
| lipids | fatty molecules that dissolve poorly in water, but dissolve well in a nonpolar solvent; fats and oils |
| nucleic acids | key info-carrying molecules in cells |
| nucleotides | subunits that make up nucleic acids |
| peptide bond | the chemical bond that links two amino acids by connecting the amino group of one amino acid to the acid group of another |
| polymer | a molecule made of many similar substances |
| triglycerides | compounds composed of a glycerol molecule with three fatty acids attached |
| ADP | adenosine diphosphate |
| lumen | the hollow inside portion of a body cavity or tube |
| cilia | a hair like projection that actively flexes back and forth to move fluid or mucus back and forth |
| cytoplasm | the part of a cell that contains everything inside the cell membrane except the nucleus |
| ribosomes | very large enzymes that make polypeptides |
| cartilage | a connective tissue that provides support and flexibility to parts of the skeleton |
| connective tissue | supporting tissue, which consists mainly of an extracellular mix |
| neurons | the cells that make up nerve tissue |
| glands | epithelial cells that are organized to produce and secrete substances |
| mitochondria | organelles in the cytoplasm that make ATP |
| epithelial tissue | a class of tissue that includes epithelia and glands |
| tissue | organized groups of similar cells |
| plasma membrane | the membrane that defines the outer shell of a cell |
| mitosis | the division of a cell nucleus and chromosomes into 2 nuclei each with its own set of identical chromosomes |
| meiosis | a type cell division that produces eggs (in females) or sperm (in males) daughter cells with half of the chromosome number of the parent cell |
| nucleus | a rounded or oval mass of protoplasm within the cytoplasm of a cell that contains the cell's DNA and is bounded by a membrane |
Created by:
mrt.17000