BIOLOGY

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Across

1. protein that acts as a catalyst in biochemical reactions

6. component of fat molecule

8. acidic group in amino acids

9. monosaccharide commonly found in fruit

11. fatty acid with hydrogens in different planes

12. monomer subunit of protein

14. major constituent of plasma membrane

17. fatty acid containing no double bonds

18. nucleic acid found only in RNA

19. bond formed between two amino acids

20. number of amino acids

Down

2. single unit of a polymer

3. structure of polypeptide chain that contains beta sheets

4. provides structural support in plant cells

5. type of bond between monosaccharides in a chain

7. used for long term energy storage

10. biological macromolecule with a ratio of 1 C:2 H:1 O

13. sugar backbone of DNA

15. type of reaction used to form polymers

16. adenine and guanine are this type of nucleotide