P.G. LeFevre's Active Transport through Animal Cell Membranes PDF

By P.G. LeFevre

ISBN-10: 3211803874

ISBN-13: 9783211803875

ISBN-10: 3709157684

ISBN-13: 9783709157688

Show description

Read Online or Download Active Transport through Animal Cell Membranes PDF

Best biology books

Paul Wassarman's Advances in Developmental Biology, Vol. 2a PDF

Advances in Developmental Biology used to be introduced as a sequence by means of JAI Press in 1992 with the looks of quantity 1. This sequence is inextricably associated with the significant other sequence, Advances in Developmental Biochemistry , that used to be introduced whilst. As said within the Preface to quantity 1: ''Together the 2 sequence will supply annual reports of study themes in developmental biology/biochemistry, written from the views of best investigators in those fields.

Hans Bisswanger's Enzyme Kinetics - Principles and Methods PDF

Now in complete colour for a extra intuitive studying event, this re-creation of the long-selling reference additionally incorporates a variety of new advancements in technique and the appliance of enzyme kinetics. beginning with an outline of ligand binding equilibria, the skilled writer is going directly to speak about uncomplicated and intricate enzyme reactions in kinetic phrases.

Additional resources for Active Transport through Animal Cell Membranes

Example text

The kidneyslice experiments discussed above are especially subject to such interpretation. BARTLEY and DAVIES '(1952), analysing sheep kidney-cortex mitochondria after incubation at 20° C. 1. They noted further (BARTLEY and DAVIES 1954) that these preparations maintained large K+ and Na+ concentration ratios for hours at 0° C. in a deficient medium (so that the absolute amounts were small); but that at 20° C. the extra NaT and K + were lost rapidly unless the ingredients mentioned above were available.

And THAN HAUSER 1949). In these experiments, if a complete medium was presented, a strong preferential uptake of K + was apparent; but, in the absence of Mg++, Na+ was distinctly preferred. The presence of K + augmented the rate of phosphate incorporation. ROBERTS and ROBERTS (1950) found similarly that supplying K+ to K+depleted E. coli greatly enhanced their incorporation of P32. Analysis showed a fairly linear relation between cell [K +I and p32 incorporation, if <19 Transport of Inorganic Anions other limiting conditions were made non-critical.

The K42 exchange rate in this system even at 0° C. was too rapid to be es-timated. The Na 24 turnover at 0° C. indicated that about 20% of the Na+ was exchangeable only with some difficulty, unless substrates such as fumarate or ketoglutarate were available. 41 Transport of Inorganic lations Table IX. Maintenance of Ionic Content of Sheep Kidney-Cortex Particulates in vitro. ) Treatment and Additions Concentration ratios (particles/medium) Na+ K+ Aerobic; no addition pyruvate, 5 mM. . . ATP,lmM .

Download PDF sample

Active Transport through Animal Cell Membranes by P.G. LeFevre


by Christopher
4.5

Rated 4.98 of 5 – based on 29 votes

admin