2018. június 17., vasárnap

Szószedet: homeostasis (önbévület*)

homeostasis: The maintenance of a dynamic steady state by regulatory mechanisms that compensate for changes in external circumstances.
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*) V.ö.: extasis = önkívület.
... http://forum.vectrix.hu/?f=13&t=99

2018. május 28., hétfő

Életenergetika: a Na–K ionpumpa

Efölött első olvasásra átsiklottam:

Transport processes are major consumers of energy; in tissues such as human kidney and brain, as much as two-thirds of the energy consumed at rest is used to pump Na+ and K+ across plasma membranes via the Na+K+ ATPase.

:o

... Lehninger-Nelson-Cox: Principles of Biochemistry, 383.o.

2018. május 17., csütörtök

Az emberi test = 1014 db sejt "concert"-je !

"Some proteins endow cells and organisms with the ability to contract, to change shape, or to move about. Actin and myosin function in the contractile system of skeletal muscle and also in many nonmuscle cells. Tubulin is the protein from which microtubules are built. Microtubules act in concert with the protein dynein in flagella and cilia (Fig. 6–1d) to propel cells."

... Lehninger-Nelson-Cox: Principles of Biochemistry, 135.o.

2017. december 26., kedd

Szószedet: attraction (vonzás)

The dependence on r2 is such that ionic attractions or repulsions operate over limited distances, in the range of 10 to 40 nm (depending on the electrolyte concentration) when the solvent is water.
 ... Lehninger-Nelson-Cox: Principles of Biochemistry, 84.o.

2017. december 19., kedd

Szószedet: exciting (izgalmas)

... familiarity with them is a prerequisite for understanding more advanced topics covered in this book, as well as the rapidly growing and exciting literature of biochemistry.

Lehninger-Nelson-Cox: Principles of Biochemistry, 109.o.

... Játsszunk biokémiát ! ... :)

2017. december 16., szombat

Szószedet: bioinformatika (language of biochemistry)

We begin in each case by considering the covalent structure of the simple subunits (amino acids, fatty acids, monosaccharides, and nucleotides). These subunits are a major part of the language of biochemistry; familiarity with them is a prerequisite for understanding more advanced topics covered in this book, as well as the rapidly growing and exciting literature of biochemistry.

Lehninger-Nelson-Cox: Principles of Biochemistry, 109.o.

Szószedet: homeostasis (önbévület*)

homeostasis : The maintenance of a dynamic steady state by regulatory mechanisms that compensate for changes in external circumstances. ___...