entropy

Primer

...for helix initiation factors Δ S is the entropy of base stacking adjusted for helix initiation factors and for the contributions of salts to the entropy R is the universal gas constant Also, a primer should not easily anneal with itself or oth...

Cell membrane

...neous process decreases free energy, and increases entropy in a system. Unlike active transport, this process does not involve chemical energy ( ATP ). Active transport Typically moves molecules against their electrochemical gradient , a process that would be entropically unfavorable were it not stoic...

Osmosis

...g of the two species results in an increase in the entropy of the system, which corresponds to a reduction in the chemical potential. For the case of an ideal solution the reduction in chemical potential corresponds to: where R is the ideal gas constant , T is the temperature and x 2 i...

Lipid

...molecules separate out from the polar liquid, the entropy (state of disorder) of the polar molecules in the liquid increases. This is essentially a form of phase separation, similar to the spontaneous separation of oil and water into two separate phases when one puts them together. Figure 2: S...

Life

...to keep its options open. A system converting entropy to negentropy , using flow of energy . Descent with modification: a "useful" characteristic A useful characteristic upon which to base a definition of life is that of descent with modification: the ability of a life form to produce offsprin...

Cell membrane

...neous process decreases free energy, and increases entropy in a system. Unlike active transport, this process does not involve chemical energy ( ATP ). Active transport Typically moves molecules against their electrochemical gradient , a process that would be entropically unfavorable were it not stoic...

Biomechanics

...servation of mass, conservation of energy, and the entropy inequality. Solids are usually modeled using a Lagrangian or reference coordinates, whereas fluids are often modeled using spatial or Eulerian coordinates. Using these postulates and some assumptions regarding the particular problem at hand, a set of...