Glossary
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tachistoscopeAn instrument for very brief measured exposure of objects to the eye. | |
tachycardiaAbnormally high heart rate. | |
TCA cycleTricarboxylic acid cycle (also citric acid cycle or Krebs cycle.) Second of three consecutive metabolic pathways involved in energy production from glucose. Acetyl CoA, formed from pyruvate in the link reaction, is catabolised via a cyclic series of reactions, in which CO2 and reduced coenzymes are produced. The former is excreted via the lungs and the latter reoxidised via the electron transport chain. | |
T cell | |
teleologicalGuided by a goal or end-point. For example, some have suggested that evolution is guided in this way (though this is not a mainstream view). | |
telomerase | |
telomereA term used for the end of the chromosome; simple tandem DNA repeat sequences that make the end of a eukaryotic chromosome. | |
temperature acclimatisationAdjustment to a different (i.e. higher or lower) environmental temperature. For example, heat acclimatisation involves a more rapid sweating response, an increase in the volume of sweat produced and a reduction in the amount of salt (NaCl) lost via sweating. | |
temporal contiguityThe presentation of two stimuli (e.g. a conditional and an unconditional stimulus) at the same time. | |