Specific quantity: Difference between revisions

Latest revision as of 12:16, 16 October 2022

high-resolution terminology - matching measurements at high-resolution

Specific quantity

Description

Specific quantities are obtained when the extensive quantity is divided by system size, in contrast to intensive quantities. The adjective specific before the name of an extensive quantity is often used to mean divided by mass (Cohen et al 2008). A mass-specific quantity (e.g., mass-specific flux is flow divided by mass of the system) is independent of the extent of non-interacting homogenous subsystems. If mass-specific oxygen flux is constant and independent of system size (expressed as mass), then there is no interaction between the subsystems. The well-established scaling law in respiratory physiology reveals a strong interaction of oxygen consumption and body mass by the fact that mass-specific basal metabolic rate (oxygen flux) does not increase proportionally and linearly with body mass. Maximum mass-specific oxygen flux, V_O2max, is less mass-dependent across a large range of body mass of different mammalian species (Weibel and Hoppeler 2005).

Reference: BEC 2020.1, Gnaiger_1993_Pure Appl Chem

Normalization of rate. (A) Cell respiration is normalized for (1) the experimental Sample (flow per object, mass-specific flux, or cell-volume-specific flux); or (2) for the Chamber volume. Normalization yields a specific quantity flux from the extensive quantity flow. From Gnaiger 2019 MitoFit Preprints.

Compare

Bioblast links: Normalization - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>

Rate

» Normalization of rate

» Flow

» Oxygen flow

» Flux

» Oxygen flux

» Flux control ratio

» Coupling-control ratio

» Pathway control ratio

» Flux control efficiency

Quantities for normalization

» Count in contrast to Number

» Mitochondrial marker

» O2k-Protocols: mitochondrial and marker-enzymes

» Citrate synthase activity

General

» Extensive quantity

» Specific quantity

» Advancement

» Motive unit

» Iconic symbols

Related keyword lists

» Keywords: Concentration and pressure

MitoPedia concepts: MiP concept, Ergodynamics

Labels:

HRR: Theory

@@ Line 1: / Line 1: @@
 {{MitoPedia
-|description='''Specific quantities''' are obtained when the [[extensive quantity]] is divided by system size, in contrast to [[intensive quantity|intensive quantities]]. ''The adjective'' specific ''before the name of an extensive quantity is often used to mean'' divided by mass ([[Cohen 2008 IUPAC Green Book |Cohen et al 2008]]). A mass-specific quantity (e.g. mass-specific flux is flow divided by mass of the system) is independent of the extent of non-interacting homogenous subsystems. If mass-specific oxygen flux is constant and independent of system size (expressed as mass), then there is no interaction between the subsystems. The well-established scaling law in respiratory physiology reveals a strong interaction of oxygen consumption and body mass by the fact that mass-specific basal metabolic rate (oxygen flux) does not increase proportionally and linearly with body mass, whereas maximum mass-specific oxygen flux, ''V''<sub>O2max</sub>, is constant across a large range of body mass (Weibel and Hoppeler 2005).
+|description='''Specific quantities''' are obtained when the [[extensive quantity]] is divided by system size, in contrast to [[intensive quantity|intensive quantities]]. ''The adjective'' specific ''before the name of an extensive quantity is often used to mean divided by mass'' ([[Cohen 2008 IUPAC Green Book |Cohen et al 2008]]). A mass-specific quantity (''e.g.'', mass-specific flux is flow divided by mass of the system) is independent of the extent of non-interacting homogenous subsystems. If mass-specific oxygen flux is constant and independent of system size (expressed as mass), then there is no interaction between the subsystems. The well-established scaling law in respiratory physiology reveals a strong interaction of oxygen consumption and body mass by the fact that mass-specific basal metabolic rate (oxygen flux) does not increase proportionally and linearly with body mass. Maximum mass-specific oxygen flux, ''V''<sub>O2max</sub>, is less mass-dependent across a large range of body mass of different mammalian species (Weibel and Hoppeler 2005).
-|info=[[Gnaiger_1993_Pure Appl Chem]]
+|info=[[BEC 2020.1]], [[Gnaiger_1993_Pure Appl Chem]]
-}}
-{{MitoPedia concepts
-|mitopedia concept=MiP concept, Ergodynamics
 }}
 <gallery heights="350px" mode="default" perrow="4" widths="350px">
-File:Rate.png |'''Normalization of rate.''' '''(A)''' Cell respiration is normalized for (1) the experimental '''Sample''' (flow per object, mass-specific flux, or cell-volume-specific flux); or (2) for the '''Chamber''' volume. Normalization yields a specific quantity from the [[extensive quantity]] ''flow''. From [[MitoEAGLE preprint 2018-02-08]].
+File:Rate.png |'''Normalization of rate.''' '''(A)''' Cell respiration is normalized for (1) the experimental '''Sample''' (flow per object, mass-specific flux, or cell-volume-specific flux); or (2) for the '''Chamber''' volume. Normalization yields a specific quantity ''flux'' from the [[extensive quantity]] ''flow''. From [[Gnaiger 2019 MitoFit Preprints]].
 </gallery>
 == Compare ==
+::::* [[Extensive quantity]]
+::::* [[Specific quantity]]
+::::* [[Intensive quantity]]
-::::* [[Extensive quantity]]
+{{Template:Keywords: Normalization}}
-::::* [[Intensive quantity]], [[Force]]
 {{MitoPedia concepts