BIOLOGY

4. An organic compound composed of carbon, hydrogen, and oxygen.
6. Fatty compounds that perform a variety of functions in your body.
8. Needed for the diet/Not made in the body.
11. A type of carbohydrate with a simple sugar structure.
12. A simple sugar that serves as a building block for carbohydrates.
13. A carbohydrate made up of multiple simple sugar units.
14. A carbohydrate that consists of two simple sugar molecules.
16. Proteins that act as biological catalysts, speeding up chemical reactions.
17. Proteins that protect you when an unwanted substance enters your body.
20. The primary energy storage molecule in animals.

1. Is a three-carbon alcohol with three hydroxyl groups attached to each carbon.
2. Serves as chemical messengers.
3. Protein that transports substances to cells.
5. The primary storage form of carbohydrates in animals.
7. A type of lipid that is a major component of cell membranes.
9. Not needed for diet/can be made in the body.
10. structure The specific sequence of amino acids in a protein.
15. acids The building blocks of proteins.
18. Protein that helps form cell parts.
19. Large molecules composed of amino acids, often with structural and enzymatic roles.