Energy metabolism glycogen

The main source of brain energy metabolism is the continuous availability of glucose from the blood. To some extent, energy can be derived from glycogen, stored in astrocytes. Neurons also use lactate as an energy source, even under normoxic conditions. During neuronal activation, lactate may even be the... 

There are only three types of storage molecules glycogen, fat, and protein. These three storage forms are all connected, and that s what energy metabolism is all about—the connections. When metabolism works normally, we re assured of a relatively constant supply of energy and glucose. 

Glycogen synthesis and degradation shown as a part of the essential reactions of energy metabolism (see Figure 8.2, p. 90, for a more detailed view of the overall reactions of metabolism). 

A number of important biochemical reactions occur intramitochondrially and some of these are described below. One major drawback to the study of energy metabolism in cestodes is the failure, due to technical difficulties, to produce isolated mitochondrial preparations of the purity which can be obtained from mammalian tissues. Generally, mitochondrial fractions of cestode origin are contaminated with other cellular components such as glycogen, endoplasmic reticulum and various membranes, and some of the data obtained with such mitochondria should, therefore, be treated with caution. 

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