Metabolism
From CreationWiki, the encyclopedia of creation science
Metabolism is the means by which the body derives energy and synthesizes the other molecules it needs from the fats, carbohydrates and proteins we eat as food.[1] The substances that are produced or used during metabolic processes are referred to as metabolites.[2] These processes involve a complicated network of enzyme-catalyzed reactions which are helped by minerals and vitamins.[1]
All living cells perform metabolic reactions, of which there are two basic types; those that make substances and those that break them down. Anabolic reactions (anabolism) are the processes that make important biochemical compounds such as DNA or protein, whereas catabolism breaks-down substances to produce energy or building blocks.
The term (metabolism) is used collectively to refer to all the physical and chemical processes in the body that create and use energy, such as:
- Digesting food and nutrients
- Eliminating waste through urine and feces
- Breathing
- Circulating blood
- Controlling body temperature
- Contracting muscles
- Functioning of the brain and nerves[3]
Contents |
Anabolism
Photosynthesis
- Main Article: Photosynthesis
DNA Replication
- Main Article: Photosynthesis
Protein Synthesis
- Main Article: Gene expression
Catabolism
Digestion
- Main Article: Digestive system
Cellular respiration
- Main Article: Cellular respiration
References
- ↑ 1.0 1.1 Nutritional and Metabolic Diseases by the National Library of Medicine
- ↑ Metabolite Medical Encyclopedia. by Medline Plus
- ↑ Metabolism Medical Encyclopedia. by Medline Plus
External links
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