Biology Unit 2

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Across
  1. 5. The specific region of an enzyme where a chemical reaction occurs.
  2. 6. Molecules that are long chains of lipid-carboxylic acid found in fats and oils.
  3. 7. The most basic form of carbs.
  4. 8. A substance that speeds up a chemical reaction.
  5. 11. Any of various complex organic acids that are composed of nucleotide chains.
  6. 12. The electromagnetic attraction between polar molecules in which hydrogen is bound to a larger atom.
  7. 13. The basic structural units of nucleic acids with a nitrogen-containing base, a five-carbon sugar, and a phosphate group.
  8. 15. The tendency of dissimilar particles or surfaces to cling to one another.
Down
  1. 1. The tendency of similar or identical particles/surfaces to cling to one another.
  2. 2. A substance that has amino acids, compounds and carbon, hydrogen, oxygen, nitrogen and sometimes sulfur and is found in many foods.
  3. 3. The least possible amount of energy which is required to start a reaction.
  4. 4. A small molecule that reacts with a similar molecule to form a larger molecule.
  5. 5. The building blocks of proteins.
  6. 9. Protein molecules in cells which work as biological catalysts. they speed up chemical reactions in the body, but do not get used up in the process.
  7. 10. Sugars, starches and fibers found in fruits, grains, vegetables, and dairy products.
  8. 14. A type of organic molecule found in living things. They are long chains of carbon and hydrogen molecules.