Unit 2: Biomolecules Key Words

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Across
  1. 3. Proteins that living organisms use to maintain their shape or structural integrity. Examples of this substance are keratin, collagen, actin and myosin.
  2. 5. The act of substances attaching to each other or when chemicals join together.
  3. 10. The part of the enzyme where the substrate binds during a reaction.
  4. 11. Lipids that contain carbohydrate residues and are often found in the walls of bacteria and fungi.
  5. 14. A biological catalyst that speeds up a specific chemical reaction in a cell. This substance is usually a protein and can be reused to assist the completion of multiple reactions.
  6. 15. The main type of sugar in the blood and is the major source of energy for the cell.
  7. 17. Lipids made up of a unit of glycerol linked to three fatty acids.
  8. 20. The process that causes proteins or nucleic acids to lose their folded structure.
Down
  1. 1. Proteins that move materials across the cell membrane, allowing compounds to be transported into and out of cells.
  2. 2. A thin, flat sheet membrane made of two layers of phospholipids.
  3. 4. A molecule that is produced by a living organism.
  4. 6. An irregular shaped region within a prokaryotic cell that ocntains most of all of the cell's genetic material.
  5. 7. A waxy, fat-like substance made in the liver and found in the blood and in all cells in the body. This substance is important for good health and is needed for making cell walls, tissues, hormones, vitamin D and bile acid.
  6. 8. A rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi and bacteria.
  7. 9. A thin, semipermeable membrane that surrounds all living cells and separates the cell's interior from the outside environment.
  8. 12. Molecules that comprise of protein and carbohydrate chains that are involved in many physiological functions including immunity.
  9. 13. A molecule created by a chemical reaction catalyzed by a particular enzyme.
  10. 16. Speeds up chemical reactions without being consumed or changed by the reaction.
  11. 18. Substance that bind to enzymes and prevent them from carrying out chemical reactions.
  12. 19. A substance in which an enzyme reacts to create final product.