p.106 (1-12,14,15)

1. (c) water

2. (b) carbohydrate

3. (c) hydrophillic

4. (b) lipid

5. (b) side groups

6. (d) substrate

7. (b)Lower  the activation energy of a reaction

8. You might consume pasta the night before a race because pasta has carbohydrates which can 

store energy for later use. 

9. Starch, glycogen, and cellulose are all polysaccharides and all three are made from glucose monomers.

10. Steroids are lipid molecules with four fused carbon rings. Steroids circulate y0ur body as chemical signals and are a starting point for which the body produces other steroids (cholesterol) 

11. Proteins are made out of polypeptides linked to amino acids. 

12. Denaturation causes the protien to lost its shape and lose its ability to function properly.

14. 

a) Water molecule

b) This is called dehydration. Dehydration happens when a monomer is added to the polymer chain and a water molecule is released. 

c) It could attach to the Leucine's OH and Serine's H.

15.

a) Enzyme A performs best at about 37-38 degrees anc enzyme B performs best at about 77-78 degrees. 

b) Enzyme A i found in humans. and enzyme B is thermophilic.

c) It slows down at 40 degrees because a human enzyme cannot be higher than that or else the the human would die.