AQA A-LEVEL BIOLOGY PAPER 1 .2020|442 QUESTIONS WITH CORRECT ANSWERS

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3.1 Correct Answer biological molecules 3.1.1 Correct Answer Monomers and polymers What are monomers? Correct Answer The smaller units from which larger molecules are made What are polymers? ... Correct Answer Molecules made from a large number of monomers joined together What are examples of monomers? Correct Answer Monosaccharides, amino acids and nucleotides What happens in a condensation reaction? Correct Answer Two molecules are joined together with the formation of a chemical bond, it involves the elimination of a molecule of water What happens in a hydrolysis reaction? Correct Answer The chemical bond between two molecules is broken, it involves the use of water All life on earth shares a common chemistry ... Correct Answer This provides indirect evidence for evolution The cells of all living organisms contain only a few ... Correct Answer Groups of carbon-based compounds that interact in similar ways Carbohydrates are commonly used by cells as respiratory substrates, Correct Answer They also form structural components in plasma membranes and cell walls Lipids have many uses, including ... Correct Answer The bilayer of plasma membranes, certain hormones, and as respiratory substrates Proteins form many cell structures, they are also important as ... Correct Answer Enzymes, chemical messengers, and components of the blood Nucleic acids carry the genetic code for ... Correct Answer The production of proteins What is the most common component of cells? Correct Answer Water what happens in covalent bonding? Correct Answer atoms share a pair of electrons in their outer shell [Show More]

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