Chapter 5 Review

1.Whih of the following is not an organic moleule?
Water

2.Which of the following terms includes all the other terms on this list?
Carbohydrate

3.Which term is most appropriate to describe a moleculte that dissolves eaily in water?Hydrophilic

4.Cholesterol is an example of what kind of moleculte?
Lipid

5.The 20 amino acids vary only in their
aminogroups

6.A specific reactant an enzyme ats upon is called the
substrate

7.An enzyme does whih of the following
Lowers the ativation energy of a reaction

8.Besides satisfying your hunger, why else might you consume a big bowl of pasta the night before a race?
You would onsume the pasta since the carbohydrages help you get energy for the race.

9.How are glucose, sucrose, and starch related?
They are all carbohydrates.

10. What are steroids? Describe two functions they have in cells.
Steroids are lipids that have a ring shaped carbon skeleton. They also help your body by sending signals and this also choses weather you are a men or a women.

11.How are Polypeptides related to proteins?
Polypeptides make up proteins.

12.How does denaturation affect the ability of a protein to function?
Denaturation affects proteins because it causes the protein to unravel and lose its function and abilities.

14. Analyzing Diagrams.
a. One product of this reaction is represented by a question mark. Which molecule is it?
The molecule that is also produced is a water molecule.
b.What is this kind of reaction called? Explain.
Dehydration reaction, because when the two amino acids combine they need to bond so they give away a water molecule together which dehydrating.
c.If an amino acid were added to this chain, at what two places could it attach?
The possible places would be defintely consisting of a Hydrogen + Oxygen atoms or just a Hydrogen atom.
15.Analyzing Graphs
a.At which temperature does enzyme A perform best? Enzyme B?
Enzyme A performs the best when the temperature is at 35 Celcius and Enzyme B works best at 75 degree celsius
b. Knowing that one of these enzymes is found in humans and the other in thermophilic bacteria, hypothesize which enzyme came from which organism.
Enzyme A is from humans, and Enzyme B is from the weird bacteria.