BIOCHEMICAL EDUCATION
April 1975 Vol. 3 No. 2
11.27 and 11.63 A T P mole -t for the acid and ion respectively. For lactate (AGf = -123 kcal mole "t) a yield of 18.03 A T P / m o l e lactate oxidized is calculated. These yields were all calculated using the value of 17.97 kcal mole "t obtained from the regression analysis of data in Table 1. The analysis presented here confirms the expectation that the change in standard free energy for the combustion of a metabolite should be simply related to the aerobic A T P yield for that metabolite, and thus serves to emphasize the underlying thermodynamic considerations of cellular energy-coupling. t Klotz, I. M., Energy Changes in Biochemical (Academic Press, New York, N.Y., 1967).
Reactions
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Comprehensible Biochemistry
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Michael Yudkin and Robin Offord
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Fig. 1. Correlation between yields of ATP obtained from various metabolites and standard free energy changes for aerobic oxidation.
POSTER SESSIONS
At the last two International Congresses of Biochemistry - Switzerland in 1970 and Sweden in 1973 - - poster sessions were available as an alternative to the more familiar 10 minute talks as a method for the presentation of research communications. The research worker was able to explain his results on display, amplify them, answer questions and engage in direct discussion and argument with other people particularly interested in his field. The advantages were considered to be considerable and the method was voted a great success and it is probable that poster sessions will soon become a regular feature at large scientific meetings. Indeed they will be prominent at the forthcoming 10th FEBS Meeting: Paris: July 1975. Robert A. Harte has recently described (Federation Proceedings, 33, 1974, 2087-8) the successful use of poster sessions at the Biochemistry/Biophysics Meeting in Minneapolis in 1974 where more than 22% of the 2,100 submissions were scheduled for poster sessions rather than oral presentation. The results of a questionnaire from both presenters and discussants showed a favourable reaction with emphasis on the establishment of a real one-to-one communication with truly interested colleagues. A useful appendix to Harte's paper gives advice and instructions regarding poster presentation. Further information may be found in Static Displays - - Posters, Wallcharts, Exhibits in Medical Education which was reviewed in Biochemical Education, 2, 1974, 35.
designed for undergraduate students of the subject - not only those reading honours biochemistry but also those for whom biochemistry is an important subsidiary study: students of the medical, biological, agricultural, or veterinary sciences; students of pharmacology, applied biology, cell and molecular biology; and students of biochemical engineering. Biochemistry today comprises a vast quantity of information. This poses formidable problems to the student attempting to gain an understanding of the subject. He must try to impose order upon the mass of facts presented to him, assess the relative importance of these facts, and place them in their biological context. These are not easy tasks. The authors have kept these problems in mind and have therefore aimed at comprehensibility rather than comprehensiveness. They have achieved this by stressing the essential unity of several different aspects of biochemistry, and by placing special emphasis on the biological significance of the phenomena they discuss. The book is divided into four parts: Macromolecules; Intermediary Metabolism; Molecular Genetics and Informational Macromolecules; and Regulation. In addition there are appendices on Enzyme Kinetics and on Separation Methods. This account will provide the student with a sound understanding of the foundations of biochemistry. He will find the clear style and thoughful but attractive presentation a refreshing change from more pedestrian treatments. £5.50 net mll All i'
Longman