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There are two types of active transport: primary active transport that uses adenosine triphosphate (ATP), and secondary active transport that uses an electrochemical gradient. This process is in contrast to passive transport , which allows molecules or ions to move down their concentration gradient, from an area of high concentration to an area ...
There are two types of active transport, primary active transport and secondary active transport. [citation needed] Primary active transport uses adenosine triphosphate (ATP) to move specific molecules and solutes against its concentration gradient. Examples of molecules that follow this process are potassium K +, sodium Na +, and calcium Ca 2+.
As can be seen from the former examples, societies based on lineage hierarchy are particularly common in central, east and southeast Asia. Lineage hierarchy was present even in the stem-family systems of Korea, Vietnam and Japan. In Korea, the main house, that of the eldest son, was called the "big house" or superordinate descent group (taejong ...
In computer science, a tree is a widely used abstract data type that represents a hierarchical tree structure with a set of connected nodes. Each node in the tree can be connected to many children (depending on the type of tree), but must be connected to exactly one parent, [ 1 ] [ 2 ] except for the root node, which has no parent (i.e., the ...
An active flow network is a graph with edges and nodes, where particles inside this graph are propelled by an active mechanism. [1] [2] This type of network is used to study the motion of molecules in biological medium. Examples are organelles, including the Endoplasmic Reticulum (ER). [3]
In a group of related items, heterarchy is a state wherein any pair of items is likely to be related in two or more differing ways. Whereas hierarchies sort groups into progressively smaller categories and subcategories, heterarchies divide and unite groups variously, according to multiple concerns that emerge or recede from view according to perspective.
Robert K. Crane. "Hypothesis for mechanism of intestinal active transport of sugars". Federation Proc. 21, 1962, pp. 891–895. David Miller and Robert K. Crane. "The digestion of carbohydrates in the small intestine". American Journal of Clinical Nutrition 12, 1963, pp. 220–227. Alexander Eichholz and Robert K. Crane.
C3 superclass linearization is an algorithm used primarily to obtain the order in which methods should be inherited in the presence of multiple inheritance.In other words, the output of C3 superclass linearization is a deterministic Method Resolution Order (MRO).