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Across
  1. 3. energy
  2. 7. The metabolism of a cell is the sum of all the chemical reactions occurring in that cell. The chemical reactions manage the amount of energy and materials that are available to that cell.
  3. 8. is one that absorbs free energy from the surroundings. have products with more stored energy than the reactants of the reaction are typically anabolic reactions.
  4. 10. are referred to as substrates in a catalysed reaction
  5. 11. required To start any reaction
  6. 12. describes the active site as having a set shape. The substrate molecules fit perfectly into active site, like a key in a lock. Once in the active site, the chemical reaction can take place
Down
  1. 1. is the process of breaking down large molecules into smaller ones. As the bonds break, free energy is released. For example, breaking a polysaccharide, such as starch, into monosaccharide monomers is a catabolic reaction.
  2. 2. Organic molecules such as vitamins and NAD+
  3. 4. enzyme activity describes a flexible active site that changes shape, or conforms, to the substrate as they bond together.
  4. 5. inhibit the activity of enzymes. That is, they reduce or stop the enzyme from functioning. Reducing enzyme activity also reduces the reaction rate.
  5. 6. is the process of making large molecules from smaller ones. Free energy is absorbed from the surroundings to build new chemical bonds. For example, building a polypeptide from amino acids
  6. 9. is one that has a net release of free energy.have reactants with more stored energy than the products of the reaction are typically catabolic reactions.