Steroid is an example of a lipid c carbohydrate b

9. Steroid is an example of
a. lipid c. carbohydrate
b. protein d. nucleic acid
____ 10. Lipids have a larger portion of the elements ___ and ___ compared to the element ___.
____ 11. Which of the following molecules are classified as carbohydrates?
____ 12. All of the following are examples of lipids
except

____ 13. The molecule on which an enzyme acts is called a(n)
a. active site. c. polar molecule.
b. inactive site. d. substrate.
____ 14. An enzyme
____ 15. Which element is found in proteins but not carbohydrates or lipids? ____ 16. When the substrate fits into the enzyme they mold together to start a reaction and then form a product. This is
called
____ 17. A solution with a pH of 11 is
a. acidic c. neutral
b. basic d. a buffer
____ 18. Acidic solutions have a pH that is ____ 19. All organic compounds contain the element
____ 20. Which of the following is a carbohydrate?
____