Across
- 4. monomer for nucleic acid
- 5. always hydrophobic
- 7. made of a nitrogenous base, a pentose sugar, and a phosphate group
- 10. sugar in DNA
- 11. most diverse molecule
- 14. elements with the same chemical formula that have different structures.
- 15. polymer for starch, cellulose, and glycogen
- 16. structure is branched
- 19. Functional group found in alcohols
- 20. Amine group at the end of a peptide bond
Down
- 1. indigestible by humans
- 2. cytosine, uracil, and thymine
- 3. guanine and adenine
- 6. Sugar in RNA
- 8. in spiders' exoskeleton
- 9. Carboxyl group at other of a peptide bond
- 12. monomer is a monosaccharide
- 13. groups hydroxyl, carboxyl, phosphate, menthyl, and amine
- 17. can make 4 bonds
- 18. there are twenty of them