Carbohydrates=used to store and supply energy and can be structured
Proteins=used for transport and structure also, basic components of all hormones, enzymes, antibodies, haemoglobin, ribosomers and more.
Lipids=parts of cell membrane, insulator and minor energy supplu.
Water= important in the formation of many molecules and also metabolic reactions
Nucleic acids = made up of nucletides. These are DNA and RNA
Enzymes=made of proteins they are biological catalyst
All these molecules (apart from water) are carbon based
Carbon - small molecule -forms single/double covalent bonds
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