Glossary
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macromolecule | |
manual social classesThe Registrar General’s social classification of the population is based on occupational status. The manual social classes are made up of people whose work is manual, e.g. building or plumbing work, and are sometimes referred to as blue-collar workers. | |
memoryA change in the nervous system as a consequence of learning, by which information is stored; the inferred process that connects learning to recall. | |
mesolimbic/mesotelencephalic dopamine system/ pathway | |
messenger RNA (mRNA)A single-stranded molecule of RNA produced by the transcription of DNA. A particular mRNA molecule carries the code for the amino acid sequence of a particular protein. | |
metabolic pathwayA group of sequential metabolic reactions. | |
metabolic rateThe rate at which energy is used by the body. It is usually expressed in kilocalories per hour. | |
metabolismThe sum of all the chemical reactions that take place in an organism. | |
metastasizeThe term refers to when a cancerous tumour spreads out to establish satellite tumours elsewhere. | |
methadoneA substance that is prescribed for heroin addicts. It is believed to have a less-addictive potency than heroin, though in this regard its use is controversial. | |