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hyg191 2basicanatomy
cell structures, mitosis and molecules
Term | Definition |
---|---|
adenosine triphosphate | compound of one molecule each of adenine and D-ribose with three molecules of phosphoric acid that is concerned with energy transformations in metabolism |
anaphase | stage of mitosis; chromosomes separate |
autolysis | process by which lysosomes break open within the cell, resulting in the self-digestion of the cell |
autosome | chromosomes without sex traits |
centriole | organelle involved with moving chromosomes during cell division |
chromatin | nucleic acid and protein substance that make up a chromosome |
chromosome | gene-containing filamentous structure in a cell nucleus |
cisternae | enclosed space |
codon | three adjacent nucleotides coding a specific amino acid |
cytoplasm | living substance of a cell |
deoxyribonucleic acid (DNA) | type of ribonucleic acid; considered the basic material of life and involved in the genetic code |
endoplasmic reticulum | a complex of tubes in a cell connecting inside to outside |
enzyme | organic catalyst; made in a cell |
Golgi apparatus | system of vacuoles in a cell |
interphase | first phase of cell division |
lysosome | an organelle containing digestive enzymes |
meiosis | special method of cell division, occuring during the development of sex cells (ova and sperm) in which the number of chromosomes is reduced |
metaphase | phase of mitosis; chromosomes line up in pairs |
microfilament | a slender rod-like structure in a cell |
microtubule | a slender hollow structure in a cell |
mitochondria | powerhouse of a cell; ATP storage |
mitosis | form of nuclear division characterized by complex chromosome movements and exact chromosome duplication |
nucleolus | an organelle in the nucleus that stores nucleic acid |
nucleoplasm | living substance in the nucleus |
organelle | tiny specific particle of living material present in most cells and serving a specific function in the cell |
prophase | phase of mitosis; nuclear membrane dissolves |
protoplasm | building material of all organisms |
ribonucleic acid (RNA) | single stranded nucleic acid chain |
ribosome | cellular organelle that produces protein |
telophase | final phase of mitosis |
transcription | transfer of information from the chromosome to the ribosome |
translation | process of directing the production of proteins using mRNA at the ribosome |
nucleic acid | one of a class of molecules composed of joined nucleotide complexes; the principal types are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) |
carbohydrate | organic compound containing carbon, hydrogen, and oxygen that is used as the major energy source of the body |
protein | complex nitrogenous compound of high molecular weight |