On the intermediary metabolism of p-chloro-nitro-benzene

Intermediary Metabolism

Intermediary metabolism.

Caenorhabditis elegans has orthologs for most of the key enzymes involved in eukaryotic intermediary metabolism, suggesting that the major metabolic pathways are probably present in this species. We discuss how metabolic patterns and activity change as the worm traverses development and ages, or responds to unfavorable external factors, such as temperature extremes or shortages in food or oxyge...

The intermediary metabolism of cholesterol.

Animal tissues synthesize cholesterol from metabolities of small molecular size, principally cholesterol. This synthetic process is known to take place in the liver but may also occur in other organs. In all tissues, with the exception of brain and nerve, cholesterol is continually regenerated. Cholesterol is the parent substance which the animal organism uses to produce bile acids, progesteron...

Intermediary metabolism of the lung.

The lung is a metabolically active organ that is engaged in secretion, clearance and other maintenance functions that require reducing potential, energy and substrates for biosynthesis. These metabolic requirements are met in part through uptake and catabolism of glucose which represents the major fuel utilized by lung tissues. Gluconeogenesis does not occur, and glycogen stores are limited so ...

The origin of intermediary metabolism.

The core of intermediary metabolism in autotrophs is the citric acid cycle. In a certain group of chemoautotrophs, the reductive citric acid cycle is an engine of synthesis, taking in CO(2) and synthesizing the molecules of the cycle. We have examined the chemistry of a model system of C, H, and O that starts with carbon dioxide and reductants and uses redox couples as the energy source. To inq...