Chapter Review

1-12, 14 & 15

1.Which of the following is not an organic molecule?
C. Water
2. Which of the following terms includes al the other terms on this list?
D. Glycogen is used in carbohydrates, used in monosaccharides used is polysaccharides
3. Which term is the most appropriate to describe a molecule that dissolves easily in water?
C. hydrophilic
4.Cholesterol is an example of what kind of molecule?
B. Lipid
5. The 20 amino acids vary only in their...
B. Side group
6. A specific reactant an enzyme act upon is called the...
D. Substrate
7. An enzyme does which of the following?
B. Lowers the activation energy of a reaction
8. Besides satisfying your hunger why else might you consume a big bowl of pasta the night before a race?
Pasta is a carbohydrate used for energy, also why athletes would eat toast, though normally a protein is eaten with it so the energy lasts longer.
9. How are glucose sucrose and starch related? Starch is made of glucose and sucrose is made of the same things as glucose but in a different format.
10. What are steroids? Describe 2 functions they have in cells. A steroid is a lipid molecule in which the carbon skeleton forms 4 fused rings, they can produce other steroids and are used in cell membranes.
11.How are polypeptides related to proteins? Proteins are made by linking amino acids into a chain called a polypeptide.
12.How does denaturation affect the ability of a protein to function? The process of denaturation unravels the protein so that it cannot function.
14. A.H2O
B. A dehydration reaction, a water molecule is removed to connect 2 molecules
C. On the very left and the left bottom
15. A. Around 38 for enzyme A and 78 for enzyme B
B. Enzyme A is found in humans because the other needs more heat therefor is heat loving
C. Because the reaction starts at that temperature and is just giving off temperature after that