Chemistry of life

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Across
  1. 2. The form of carbohydrate storage in animals.
  2. 3. diffusion of water molecules across a selectively permeable membrane.
  3. 5. basic structural units of nucleic acid. Each unit is composed of a five-carbon sugar, a phosphate, and a nitrogenous base.
  4. 10. synthesis- A series of chemical reactions that allow two molecules to bond by the formation of a water molecule.
  5. 14. that use energy, usually light, to synthesize their own food from inorganic compounds.
  6. 16. process by which an mRNA molecule is built using the sequence of nucleotides in DNA as a template.
  7. 17. Consists of nutrients made up of a single sugar molecule. Contains only carbon, hydrogen, and oxygen.
  8. 18. large carbohydrate molecule used by plants to store energy.A large carbohydrate molecule used by plants to store energy.
  9. 19. lipid composed of glycerol and three fatty acids which are bonded together.
  10. 20. transport- The movement of materials across a cell membrane without the use of energy from the cell.
Down
  1. 1. molecules that are made by joining several separate units, such as joining several sugar units to form a starch molecule.
  2. 4. lipid vesicles.
  3. 6. form of endocytosis in which solid particles are engulfed by cells.
  4. 7. carbohydrates that forms the cell walls of plant cells.
  5. 8. loss of electrons from an atom or molecule.
  6. 9. three-carbon chain molecule containing three hydroxyl groups.
  7. 11. movement of molecules from an area of higher concentration to an area of lower concentration.
  8. 12. main components of cell membranes. They are composed of a phosphate group and two fatty acids attached to the glycerol backbone.
  9. 13. acids- Long chains of carbon and hydrogen joined together.
  10. 15. raw materials needed for cell metabolism.