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Substance [ Biology  - Chemistry ]

Dictionary of botanic terminology - index of names

     
  The substance is the stuff of which an object or body consists; any natural or synthetic matter or material, whether in solid or liquid form or in the form of a gas or vapour that which has mass and occupies space; Any chemical compound. This includes chemicals and biological materials.  
     
Natural substance: A substance in its natural state produced by natural processes.
Synthetic or artificial substance: Any matter or material obtained by a process in chemistry:
     
Biogenic (or biological) substance [ Biochemistry ]
     
  A biogenic substance is a substance produced by plants ,animals, or microorganism by natural  processes. The matter; material of which a living organism is made;  
     
Chemical substance [ Chemistry ]
     
  A chemical substance is any matter or material used in or obtained by a process in chemistry  
     
A chemical compound is a substance in the natural state or obtained by any production process, consisting of two or more chemical elements that are chemically combined in fixed proportions.
A chemical element is a substance that cannot be divided or changed into different substances by ordinary chemical methods. The smallest particle of such an element is an atom, which consists of electrons centered around a nucleus of protons and neutrons.
A molecule is the smallest particle of an element or compound that retains the characteristics of the element or compound.
An ion is an atom or group of atoms with a net electric charge, having lost (cation) or gained (anion) an electron.
A biogenic substance is a substance produced by plants ,animals, or microorganism by natural processes. The matter; material of which a living organism is made;
     

 

 

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