CHEM2010 Biochemistry What Are Two Roles of Cholesterol Worksheet 10 chemistry homework posted as doc.please finish those in 3 days Chemistry 2010 Homework

CHEM2010 Biochemistry What Are Two Roles of Cholesterol Worksheet 10 chemistry homework posted as doc.please finish those in 3 days Chemistry 2010 Homework 10 Biochemistry
1. What is the major role for each of the following:
a. carbohydrates
b. lipids
c. nucleic acids
d. amino acids
2. For each polymer below, what is the monomer?
a. polysaccharide
b. protein
c. nucleic acid
3. Do lipids form polymers?
4. What are two roles of cholesterol?
5. Match each of the following to the type of molecule.
a. amino acid b. lipid c. cholesterol d. carbohydrate
i. DNA
ii. HO
CH2OH
CH2OH
O
OH
OH
iii.
OH
e. nucleic acid
OH
H2N
O
HO
O
iv.
O
v. O
(CH2)14
CH3
Chemistry NSC 2010 Final Exam
Please put your name on this exam. Be sure to answer all of the questions as completely as
possible. It’s been a pleasure getting to know you. Hope the class met your needs. Good luck to you
in your future.
100 points
True / False
1. A scientific theory is just a guess. There is no proof.
True
False
2. A major source of greenhouse gas is burning of fossil fuels.
True
False
3. All electromagnetic radiation is damaging.
True
False
4. If a molecule is “organic” that means it is safe.
True
False
5. To maintain the proper pH balance in your body, you should drink alkaline water.
True
False
Chemistry 111 Final Exam Pg. 2
Multiple Choice (4 points each)
6. Which of the following is NOT produced from burning fossil fuels?
a. H2O
b. CFC
c. SO2
d. CO2
7. Which of the following is responsible for ozone damage?
a. H2O
b. CFC
c. SO2
d. CO2
8. Climate change is due to which part of the electromagnetic spectrum?
a. visible
b. radio
c. infrared
d. UV
9. Which part of the electromagnetic spectrum do cell phones use?
a. visible
b. radio
c. infrared
d. UV
10. Which part of the electromagnetic spectrum protects us from ozone?
a. visible
b. radio
c. infrared
d. UV
Chemistry 111 Final Exam Pg. 3
11. Which type(s) of energy is/are renewable?
a. wind
b. nuclear
c. coal
d. solar
12. Which of the following produces greenhouse gas?
a. wind
b. nuclear
c. coal
d. solar
13. Match each structure to the functional group.
a. alcohol
b. aldehyde
O
i.
H3C
CH3
OH
ii.
O
iii.
iv.
O
NH2
14. A protein is a polymer of
a. nucleotides
b. monosaccharides
c. fatty acids
d. amino acids
c. ketone
d. acid e. ester f. amine
Chemistry 111 Final Exam Pg. 4
15. Match each of the following to the type of molecule.
a. amino acid
b. lipid c. cholesterol
CH2OH
CH2OH
O
OH
OH
i.
OH
OH
H2N
O
HO
ii.
O
iii. HO
O
iv. O
(CH2)14
CH3
(5) 16. For the following:
a. Complete and balance:
CH4 + O2 ——>
b. Balance:
Al + HCl. —–> AlCl3. + H2
d. carbohydrate
Chemistry 111 Final Exam Pg. 5
(5) 17. Gasoline burns by the reaction below:
2 C8H18 + 25 O2 —-> 16 CO2 + 18 H2O
if it produces carbon dioxide and water, why are cars still big sources of pollution?
(5) 18. Complete the following:
Name
a.
sulfur dioxide
b.
_______________
c.
ozone
d.
_______________
e.
Iodine heptafluoride
Formula
____________
CO
______________
P4O10
________________
(5) 19. For each of the following, give the number of protons, neutrons and electrons.
a.
27
Al
b. 52Cr3+
Chemistry 111 Final Exam Pg. 6
(5) 20. Draw a Lewis dot structure for the followings and give the shape.
SO3
CO2
(5) 21. Complete the following:
a. 23592U —->
b.
14
6C
—–>
4
2?
+ _____
0
-1?
+ _____
(5) 22. What is “renewable” energy. Give two renewable sources.
(5) 23. Define oxidation and reduction and give an application.
(5) 24. A buffer resists changes in pH. Our blood is buffered. Why is it important that our blood can
resist changes in pH?
(5) 25. In this course, we discussed a couple of times some misconceptions the general population has
about science-related issues. Briefly discuss one of them.

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