miserly
发表于 2025-3-21 16:50:56
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Ovulation
发表于 2025-3-21 22:37:26
Transformation and Degradation of Secondary Products with respect to metabolic stability: (a) the truely metabolically inert end products, (b) the products stable at a given physiological or developmental state, and (c) the substances undergoing continuous turnover.
Provenance
发表于 2025-3-22 01:54:41
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确定无疑
发表于 2025-3-22 05:20:30
Aminotransferases and Amino Acid Decarboxylasesplacement of a pair of electrons adjacent to the .carbon of the amino acid. Depending on the type of enzyme, either a proton is eliminated, as is the case in transamination of amino acids and amines (Fig. 26, pathway A), or the carboxyl group is lost, as is the case in amino acid decarboxylation (Fig. 26, pathway B).
重力
发表于 2025-3-22 08:45:32
Cellular Compartmentalization and Channelingese structural characters give rise to high local concentrations of reactants, the protection of reactive intermediates and the directed transport of precursors, intermediates, and products. They favor certain sequences of reactions (metabolic channeling) and thus facilitate the formation and function of metabolic chains.
群居动物
发表于 2025-3-22 15:59:25
What is Secondary Metabolism?ins and their precursors, of most carbohydrates, of some carboxylic acids, etc., cf. Table 6), a vast number of metabolic pathways lead to the formation of peculiar chemical compounds, the so-called “secondary products”. The most characteristic features of these substances are
合唱团
发表于 2025-3-22 19:41:43
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青春期
发表于 2025-3-22 21:38:14
Cellular Compartmentalization and Channeling of enzymes and the channeling of precursors, intermediates, and products to the sites of metabolic activity. At the cellular level it is brought about either by membranes separating cytoplasmic and noncytoplasmic areas or by the influence of micro environmental effects which form “microcompartments
退潮
发表于 2025-3-23 04:17:00
Transformation and Degradation of Secondary Products secondary substances are transformed or are even degraded to compounds of primary metabolism. Three types of secondary compounds may be distinguished with respect to metabolic stability: (a) the truely metabolically inert end products, (b) the products stable at a given physiological or development
Insulin
发表于 2025-3-23 06:24:02
Examination of Secondary Metabolic Pathways experiments in unbiological systems, which served to demonstrate the chemical feasibility of certain reactions under “physiological conditions”. This situation changed drastically in the 1950’s when radioactive isotopes became readily available. The use of the so-called tracer technique, i.e.,