CHEM 102 Cuyamaca College Metabolic Reactions Chemistry Final Exam I have no requirements but i need a good expert to do my Chemistry Test please it’s simp

CHEM 102 Cuyamaca College Metabolic Reactions Chemistry Final Exam I have no requirements but i need a good expert to do my Chemistry Test please it’s simple and easy Chem 102
Final Exam
100 points
Name: _______________________________________________
1. What category of metabolic reactions involves the breaking down of large, complex
molecules to provide energy? (2 pts)
2.
Why are anabolic reactions that require energy coupled with the hydrolysis of a highenergy compound such as ATP? (2 pts)
3.
Consider the following two reactions from the citric acid (Krebs) cycle.
Reaction A:
Reaction B:
a. What is being reduced in Reaction A (2 points)
b. What type of chemical reaction does Reaction B represent? (2 points)
4. Glyceryl tricaprate is an ingredient of lipstick. Draw the condensed structural formula for
glyceryl tricaprate if capric acid is a saturated 10-carbon fatty acid. (4 points)
5. Identify each of the following as a fatty acid, soap, triacylglycerol, wax, or steroid: (4
points)
a. Beeswax
b. Cholesterol
c. Glyceryl tripalmitate
d. Sodium stearate
6. Identify the type of transport described by each of the following: (2 points)
a. A molecule moves through a protein channel
b. O2 moves into the cell from a higher concentration outside the cell.
7. Draw the structure for each of the following amino acids at physiological pH: (4 points)
a. Serine (Ser) (R group = -CH2-OH)
b. Leucine (Leu) (R group =
)
8. Draw the structure for the tripeptide Gly-Ser-Leu. The R group for Glycine (Gly) is -H.
(4 points).
9. Identify the interactions that stabilize the tertiary structure of the protein. Write your answers
above/near the blurred areas of the picture below. (7 points)
10. The following is a block diagram for a glycerophospholipid where the building blocks are
labeled with letters and the linkages between building blocks are labeled with numbers. (8
points)
a. Which building blocks are fatty acid residues?
b. Which building blocks are alcohol residues?
c. Which linkages are ester linkages?
d. Which linkages involve a phosphate residue?
11. Which of the following is a correct representation for the structure of a lipid bilayer?(1 point)
12. What is the name of the nucleoside that contains the following subunits? (6 points)
a. Ribose and adenine
b. Uracil and ribose
c. Deoxyribose and cytosine
d. Thymine and deoxyribose
13. For the nucleotide: (3 points)
a. What is the name of the pentose sugar present?
b. Is the heterocyclic base present a purine or a pyrimidine?
c. Would this nucleotide be found in DNA or RNA molecules?
14. The following graph shows the relationship between enzyme activity and both pH and
temperature for two enzymes (A and B) (4 points)
a. What is the optimum pH for enzyme A?
b. What is the optimum temperature for enzyme B?
c. Which enzyme has the greater activity at a pH of 7.4?
d. Which enzyme has the greater activity at a temperature of 37.8oC?
15. Describe the effect that each of the following changes would have on the rate of a
biochemical reaction that involves the substrate urea and the liver enzyme urease. (4
points)
a. Increasing the urea concentration
b. Increasing the urease concentration
c. Increasing the temperature from its optimum value to a value 10oC higher than
this value
d. Decreasing the pH by one unit from its optimum value
16. The active site of the enzyme (1 point)
a. Is remote from the site of substrate attachment
b. Is converted to a product
c. Catalyzes the reaction
d. Increases the energy of reaction
e. Includes the entire enzyme
17. Draw the condensed structural formula for the products of the following reactions (4 points):
18. Write the IUPAC name for each of the following: (6 points).
19. The ordered dose for an aerosolized medication is 0.06 mg/kg and a prepared strength
vial contains 0.3 mg/mL of the drug. How many mL from the prepared strength vial will
be needed to deliver the prescribed dose to a 165 lb patient? (5 points) (1 kg = 2.2 lb)
20. Write the electronic configuration for Argon and Aluminum (6 points)
21. Write the balanced chemical equation for the complete combustion of each of the
following: (5 points)
a.
b.
22. How many grams of PbCl2 are formed when 25.0 mL of 0.654 M KCl react with
Pb(NO3)2? (4 points)
23. The [OH-] of a solution with pH = 8.34 is __________________ (3 points). Show your
work.
24. What volume of concentrated sulfuric acid (H2SO4) which is 18M is required to obtain
5.19 moles of the acid? (3 points)
25. Given the following reaction:
P4(s) + 6Cl2 ——-> 4 PCl3(g)
a. How many moles of PCl3 can be produced by the reaction of 3.28 moles of
Cl2 in the presence of excess P4? (4 points)

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