chemistry of life

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Across
  1. 3. acid- an organic molecule that is half of a glucose molecule with the molecular formula C3H6O3.
  2. 7. solution- a solution where the concentration of solutes outside a cell is lower than that found inside the cell
  3. 9. a lipid composed of glycerol and three fatty acids which are bonded together
  4. 10. acid- long chain of carbon and hydrogen joined together the end of the chain has an acid group (-COOH)
  5. 11. the process by which plants use chlorophyll to trap sunlight energy and use it to produce carbohydrates
  6. 13. the movement of molecules from an area of higher concentration to an area of lower concentration
  7. 15. a three carbon chain molecule containing three hydroxyl (-OH) groups
  8. 16. solution- a solution where the concentration of solutes outside a cell higher than that found inside cell
  9. 17. the diffusion of water molecules across a selectively permeable membrane
  10. 19. the carbohydrate that forms the cell walls of plant cells
  11. 20. a condition in which all acting influences are balanced resulting in a stable environment
  12. 22. gradient- a difference in the number of molecules or ions of a substance between adjoining regions without the addition of energy molecules tend to diffuse from the area of higher concentration to the area of lower concentration
Down
  1. 1. a form of endocytosis in which liquid droplets are engulfed by cells
  2. 2. a large carbohydrate molecule used by plants to store energy
  3. 4. nutrients made up of a single sugar molecule or many sugars molecules carbohydrates contain only carbon hydrogen and oxygen
  4. 5. solution- a solution where the concentration of solute molecules outside a cell is equal to the concentration of solute molecules inside the cell
  5. 6. synthesis- a series of chemical reactions that allow two molecules to bond by the formation of water molecule
  6. 8. the form of concentration storage in animals
  7. 12. the raw materials needed for cell metabolism
  8. 14. large molecules that are made by joining several separate units such as joining several sugar units to form a starch molecule
  9. 18. transport- involves the use of cell energy to move materials across a cell membrane against the concentration gradient
  10. 21. transport- the movement of materials across a cell membrane without the use of energy from the cell