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Enzymes 0

Chemical reactions in organism’s bodies (Metabolism & Enzymes)

Living organisms life depends on the occurrence of chemical reactions inside their bodies , these reactions are called metabolism ,  Metabolism is necessary for growth , repairing the damaged tissues and obtaining the energy...

Nucleic acids 0

Importance and Chemical structure of Nucleic acids

Nucleic acids They are biological macromolecules ( polymers ) made up of many smaller molecules ( monomers ) called nucleotides , Nucleic acids are composed of hydrogen , oxygen , nitrogen , carbon and...