Active Transport Definition Active transport is a kind of cellular transport where substances move against a concentration gradient. This means that the direction is from an area of lower concentration to an area of higher concentration. Hence, this process will require the expenditure of energy, and...
Kristin has taught college Biology courses and has her doctorate in Biology. Definition and Significance of Active Transport Active transport is the movement of ions or molecules against their concentration gradient, which involves the input of chemical energy. This transport is carried out by integral...
Active Transport is the movement of molecules from a region of lower concentration to a region of higher concentration with the use of energy.
Even at the local level, Coalition officials were embarrassed by a 1999 New York Times report that highlighted the fact that the number of active state chapters had fallen from 48 to seven. Robertson resigns! The drug is similar to nucleoside analogs such as ddI but requires less intracellular...
Together, beaches and dunes act as a protective buffer against storms and sea-level rise, and, being interdependent through sediment transport and storage, removal of sand from one compartment affects the others. This zone is resilient as long as it remains free to fluctuate within its natural ...
Biochemistry, Genetics and Molecular Biology Earth and Planetary Sciences Medicine and DentistryShow moreDiscover other topics On this page Definition Chapters and Articles Related Terms Chapters and Articles You might find these chapters and articles relevant to this topic. Chapter Environmental Biotechn...
Self-organization is the generation of order out of local interactions. It is deeply connected to many fields of science from physics, chemistry to biology, all based on physical interactions. The emergence of collective animal behavior is the result of
Steered molecular dynamics (SMD) [207] applies an artificial force to pull the ligand through the channel and then computes the resulting rupture force. It requires a definition of the direction of the applied force, and in most studies it benefits from previous RAMD results [193,194,203,206...
An interesting detail concerns the possible occurrence of ‘head’ addition,i.e.addition of a radical to the substituted end of thedouble bondin the monomer. This was shown to occur at the 20% level withvinyl acetateat 60°C and to a greater extent at 100°C, but to be absent in the...
Ranking the materials in a multiobjective optimization task introduces, by definition, a bias and detailed studies have been made to identify how such bias can impact the optimization (see ref. 35 and Supplementary Note 1). However, one can make a bias-free ranking of the experiments that ...