Biological molecules 0.0 / 5 ? BiologyBiological molecules, organic chemistry and biochemistryA2/A-levelAQA Created by: ryandawkinsCreated on: 10-11-18 15:35 All life on Earth shares... A common chemistry, which provides indirect evidence for evolution. 1 of 6 What are carbs generally used for? Used by cells as respiratory substrates; structural components in plasma membranes and cell walls. 2 of 6 What are lipids generally used for? Many uses: bilayer in plasma membranes; certain hormones; respiratory substrates. 3 of 6 What are proteins generally used for? Form many cell structures; important as ezymes, chemical messengers and components of blood. 4 of 6 What are nucleic acids used for? Carry genetic code for the production of proteins; genetic code common to viruses and all living organisms, providing evidence for evolution. 5 of 6 What is the most common component of cells? Water. 6 of 6
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