Exam 1 Crossword (Kseniia Demina)

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Across
  1. 2. sharing electrons between 2 or more atoms
  2. 3. make up polymers, held by covalent bonds
  3. 4. double bonds between carbons (plant and fish fat)
  4. 6. building blocks (monomers) held by covalent bonds, made by dehydration synthesis
  5. 7. sugars, carbonyl (C=O) and hydroxyl (-OH) groups
  6. 8. 22 of them, monomer of polypeptide (protein), have carboxyl (-COOH) amino group (-NH2) carbon (C), hydrogen (H) and differ in R group
  7. 12. mainly C and H, mix poorly with water
  8. 13. atom strips away electron completely, forms cation and anion, ex: NaCl, HCl
  9. 15. it has cohesiveness, ability to monitor temp, expansion when freezing, versality as a solvent
  10. 17. carbs, proteins, nucleic acids, lipids
  11. 18. no double bonds between carbons (animal fats)
  12. 20. partial + hydrogen atom is attracted to electronegative atom (O, N)
  13. 22. many monosaccharides, energy storage (starch, glycogen) and structure (cellulose, chitin)
  14. 23. glycerol and fatty acid monomers, energy source
  15. 24. composed of nitrogen, 5 carbon sugar, 1 or more phosphate groups
  16. 25. made of polypeptides (polymers made from amino acids), enzyme, structure, defense, muscles, transport, receptor
Down
  1. 1. electrons shared equally, same element, ex: H2, CH
  2. 5. electrons not shared equally, different elements, ex:OH
  3. 9. polymers (polynucleotide) made from monomer (nucleotide), provides instruction for protein primary structure
  4. 10. 2 monosaccharides held by covalent bond, used for energy, ex: sucrose, maltose, lactose
  5. 11. monomer of carbs, used for energy, ex: glucose
  6. 14. carbon skeleton of 4 fused rings (cholesterol important for hormones, estrogen and testosterone)
  7. 16. polymer made from amino acids, peptide bonding formed by dehydration synthesis
  8. 19. glycerol, fatty acid, - phosphate group, make cell membranes
  9. 21. same number of protons, different number of neutrons