Cell metabolism
... of controlled chemical reactions called
metabolic pathways .
Contents ...
Anabolism
Anabolism is a constructive
metabolic process whereby energy is consumed to ... .
Catabolism
Catabolism is a type of
metabolic process occurring in living cells by which ...
Citric acid cycle
... aerobic organisms , the citric acid cycle is a
metabolic pathway that forms part of the break down of ... to generate energy.
It is the second of three
metabolic pathways that are involved in fuel molecule ... of cycle and inputs and outputs
3 Major
metabolic pathways converging on the TCA cycle
4 See ...
Diabetes mellitus
... blood glucose, poor protein synthesis, and other
metabolic derangements.
Type 1 diabetes mellitus
... ).
Insulin deficiency switches many aspects of
metabolic balance in a catabolic direction. The liver ... ). As the ketosis worsens, it produces a
metabolic acidosis , with anorexia, abdominal distress, and ...
Enzyme
...
2.2 Specificity
2.3 Kinetics
2.4
metabolic pathways
2.5 Quantum-mechanical model of ...
4 Enzymes and health
4.1 Digestive and
metabolic enzymes
5 Enzyme naming conventions
... inhibits the first common committed step.
metabolic pathways
Several enzymes can work together in a ...
Excretion
... Malpighian tubules is utilized to excrete
metabolic waste.
metabolic waste diffuses or is actively transported into ... transports the wastes to the intestines. The
metabolic waste is then released from the body along with ...
Citric acid cycle
... aerobic organisms , the citric acid cycle is a
metabolic pathway that forms part of the break down of ... to generate energy.
It is the second of three
metabolic pathways that are involved in fuel molecule ... of cycle and inputs and outputs
3 Major
metabolic pathways converging on the TCA cycle
4 See ...
Metabolism
... of sequences of enzymatic steps, also called
metabolic pathways . The total metabolism are all ... Contents showTocToggle("show","hide")
1
metabolic pathways
1.1 General pathways
1.2 ...
3 See also
4 External links
metabolic pathways
...
Thermoregulation
... become denatured at temperature extremes and
metabolic reactions occur best at certain temperatures; ... not able to control the body temperature through
metabolic regulation.
Some animals living in cold ... humming birds which temporarily reduce their high
metabolic rates to conserve energy.
Variations in the ...
Cellular respiration
... respiration, this oxidation process is broken down into two basic
metabolic pathways : glycolysis , anaerobic respiration or aerobic respiration ...
Glycolysis
Main article: Glycolysis
Glycolysis is a
metabolic pathway that is found in all living organisms and does not require ...
Cold-blooded
... technically known as poikilothermic , are animals that have no internal
metabolic mechanism for regulating their body temperatures. Some (usually smaller) ... radiation . As the environmental temperature increases, the animal's
metabolic rate will increase. Lizards, fish, and amphibians are examples of ...
Warm-blooded
... warm-blooded animals control their body temperature by regulating their
metabolic rates .
Contents showTocToggle("show","hide")
1 ... winter , there may not be enough food to enable an endotherm to keep its
metabolic rate stable all day, so some organisms go into a controlled state of ...
Evolution
... appear to be undergoing a steady process of degeneration [6] .
Since
metabolic processes do not leave fossils, research into the evolution of the basic ... of development, so it is theoretically possible to determine when certain
metabolic processes appeared by comparing the traits of the descendants of a common ...
Glycolysis
... Glycolysis is the initial
metabolic pathway of carbohydrate catabolism . The most common and well-known ... as in many microorganisms.
Evolution
Glycolysis is the only
metabolic pathway common to nearly all living organisms, suggesting great antiquity; ...
Hydrolysis
... solution), a hydrolytic cleavage reaction, where the concentration of a
metabolic precursor is low (on the order of 10 -3 to 10 -6 molar), is essentially ... of physiological irreversibility of hydrolysis is used consistently in
metabolic pathways, since many biological processes are driven by the cleavage of ...
Insulin
...
2 Structure and production
3 Actions on cellular and
metabolic level
4 Regulatory action on blood glucose
5 Signal transduction ... on the muscular layer of the arteries .
Actions on cellular and
metabolic level
The actions of insulin on the global human metabolism level ...
Mitochondrion
... The exact number of mitochondria depends on the cell's level of
metabolic activity: more activity means more mitochondria. Mitochondria can occupy ... the form of ATP , mitochondria play an important role in many important
metabolic tasks, such as:
Apoptosis
Glutamate -mediated excitotoxic ...
Mitochondrion
... The exact number of mitochondria depends on the cell's level of
metabolic activity: more activity means more mitochondria. Mitochondria can occupy ... the form of ATP , mitochondria play an important role in many important
metabolic tasks, such as:
Apoptosis
Glutamate -mediated excitotoxic ...
Nutrition
... produced in our digestive system. They are vitally important in all the
metabolic activity in our bodies.
Antioxidants are another recent discovery. ... indicate that phytoestrogens in our food are related to the avoidance of
metabolic syndrome, the regulation of cholestorol, and maintenance of bone density. ...
Signal transduction
... transduction include the activation of a gene , the production of
metabolic energy and cell locomotion , for example through remodelling of the ... many of which are enzymes, transcription factors or other regulators of
metabolic activity. Because transcription factors can activate still more genes in ...
Anabolism
... Anabolism is the aspect of metabolism that is characterized by growth. One way of categorizing
metabolic processes, whether at the cellular , organ or organism level is as anabolic or catabolic .
Anabolic processes tend toward "building up" organs ...
Antibiotic
... molecular equipment needed to enter a cell and actually take over the machinery of the cell to produce new viruses. Thus, the great bulk of viral
metabolic biochemistry is not merely similar to human biochemistry, it actually is human biochemistry, and the possible targets of antiviral compounds are ...
Bacterium
... for this purpose are called lithotrophs and others needing organic compounds (e. g. sugars or organic acids) and are called organotrophs . The
metabolic modes of energy metabolism (phototrophy or chemotrophy), reducing equivalent sources (lithotrophy or organotrophy) and carbon sources (autotrophy or ...
Bioinformatics
... tools and objects (as program modules) that make bioinformatics easier.
See also
biologically-inspired computing
morphometrics
metabolic network
Important publications in bioinformatics
Related fields
applied mathematics — biology — computer science ...
Biochemistry
... , electron microscopy and molecular dynamics simulations. These techniques allowed for the discovery and detailed analysis of many molecules and
metabolic pathways of the cell , such as glycolysis and the Krebs cycle (citric acid cycle).
Today, the findings of biochemistry are used in many ...
Blood
... then returns to the heart through the veins .
See circulatory system for a more detailed description of this circulation.
Blood also transports
metabolic waste products, drugs and other foreign chemicals to the liver to be degraded and to the kidney to be excreted in urine .
A buffer solution ...
C4 carbon fixation
... For other meanings of C4 , see C4 (disambiguation)
C 4 carbon fixation is a common
metabolic pathway found in land plants ( C4 plants ). They are competitively superior to plants possessing the more common C3 pathway under the conditions of ...
Carbohydrate
... enough in many cases. The increase in protein means that more ammonia groups need to be removed from the blood.
Catabolism
There are three
metabolic pathways of carbohydrate catabolism :
glycolysis
citric acid cycle
oxidative phosphorylation
See also
Biochemistry
...
Anabolism
... Anabolism is the aspect of metabolism that is characterized by growth. One way of categorizing
metabolic processes, whether at the cellular , organ or organism level is as anabolic or catabolic .
Anabolic processes tend toward "building up" organs ...
Bioinformatics
... tools and objects (as program modules) that make bioinformatics easier.
See also
biologically-inspired computing
morphometrics
metabolic network
Important publications in bioinformatics
Related fields
applied mathematics — biology — computer science ...
Cytoplasm
... consistency of the cell and to provide suspension to the organelles.
It is also a storage place for chemical substances indispensable to life. Vital
metabolic reactions take place here, for example anaerobic glycolysis and proteic synthesis .
See also : microtubules , vesicle
...
Endoplasmic reticulum
... within vesicles . The rough ER also modifies, folds, and controls the quality of proteins.
Smooth ER
The smooth ER has functions in several
metabolic processes. It takes part in the synthesis of various lipids (e.g., for building membranes such as phospholipids ), fatty acids and steroids ....
Endosymbiont
... , Ophiuroidea , Asteroidea , Echinoidea , and Holothuroidea ). Little is known of the nature of the association (mode of infection, transmission,
metabolic requirements, etc.) but phylogenetic analysis indicates that these symbionts belong to the alpha group of the class Proteobacteria , relating them ...
Endosymbiont
... , Ophiuroidea , Asteroidea , Echinoidea , and Holothuroidea ). Little is known of the nature of the association (mode of infection, transmission,
metabolic requirements, etc.) but phylogenetic analysis indicates that these symbionts belong to the alpha group of the class Proteobacteria , relating them ...
Bacterium
... for this purpose are called lithotrophs and others needing organic compounds (e. g. sugars or organic acids) and are called organotrophs . The
metabolic modes of energy metabolism (phototrophy or chemotrophy), reducing equivalent sources (lithotrophy or organotrophy) and carbon sources (autotrophy or ...
Eukaryote
... Origin and evolution
The origin of the eukaryotic cell was a milestone in the evolution of life. Although eukaryotes use the same genetic code and
metabolic processes as prokaryotes, their higher level of organizational complexity has permitted the development of truly multicellular organisms. Without ...
Fermentation
... In its strictest sense, fermentation (formerly called zymnosis ) is the energy-yielding anaerobic
metabolic breakdown of a nutrient molecule, such as glucose, without net oxidation. Fermentation yields lactate , acetic acid , ethanol , or some other ...
Gene
... killing the mouse.
In 1941 , George Wells Beadle and Edward Lawrie Tatum showed that mutations in genes caused errors in certain steps in
metabolic pathways . This showed that specific genes code for specific proteins, leading to the "one gene, one enzyme" hypothesis. Oswald Avery , Collin ...
Guthrie test
... The Guthrie test is a series of medical tests performed on newborns to detect several
metabolic diseases . It is named after the U.S. bacteriologist Robert Guthrie , who first described it in 1963. The test is performed on blood samples ...
Photosynthesis
... chain.
Factors affecting photosynthesis
Light intensity and wavelength
Carbon dioxide concentration
Temperature
In Detail
metabolic pathways involved in photosynthesis:
Light reaction
Dark reaction
See also
Artificial photosynthesis
External links
...
Homeostasis
...
The regulation of the amounts of water and minerals in the body. This is known as osmoregulation. This happens in the kidneys.
The removal of
metabolic waste. This is known as excretion. This is done by the excretory organs such as the kidneys and lungs.
The regulation of body temperature. This is ...