Download Test 5 Ch 2 - Kenton County Schools

Accelerated Biology Test: Ch 2, 7
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. Which of the following is a carbohydrate?
a. ATP
b. steroid
c. wax
d. sucrose
____
2. All of the following are examples of lipids except
a. oil.
c. steroids.
b. starch.
d. candle wax.
____
3. Which of the following molecules are most closely related to proteins?
a. amino acids
c. nucleotides
b. monosaccharides
d. sugars
____
4. The two types of nucleic acids are
a. RNA and ATP.
b. DNA and RNA.
c. DNA and ATP.
d. nucleotides and ATP.
____
5. Amino acids are the building blocks of which macromolecule?
a. carbohydrate
c. lipid
b. DNA
d. protein
____
6. The atom present in all organic compounds is
a. carbon.
d. sulfur.
b. oxygen.
e. hydrogen.
c. nitrogen.
____
7. Which of the following is composed of a 1:2:1 ratio of carbon to hydrogen to oxygen?
a. carbohydrate
d. nucleic acid
b. protein
e. steroid
c. lipid
____
8. The molecule on which an enzyme acts is called a(n)
a. active site
c. polar molecule
b. inactive site
d. substrate
____
9. The molecule on which an enzyme acts is called a(n)
a. active site.
c. polar molecule.
b. inactive site.
d. substrate.
____ 10. Fructose and glucose are
a. polymers
b. monosaccharides.
c. disaccharides.
d. polysaccharides
____ 11. Refer to the illustration above. Which of the following statements regarding the graph is true?
a. Reaction 2 occurs faster than Reaction 3 because Reaction 2 requires more energy than
Reaction 3.
b. The difference between the graphs shown for Reaction 2 and Reaction 3 occurs because of
a difference in the activation energy of these reactions.
c. Reactant A contains more energy at the beginning of the reaction than product C has at the
end of the reaction.
d. Product B contains more energy at the end of the reaction than reactant A has at the
beginning of the reaction.
____ 12. Refer to the illustration above. Reaction 3 in the graph
a. probably occurred in the presence of an enzyme.
b. requires more activation energy than Reaction 2.
c. is the same as Reaction 1, but faster.
d. is slower than Reaction 2.
____ 13. Which element is found in proteins but not carbohydrates or lipids?
a. C
c. N
b. H
d. O
____ 14. The first carbon compounds that scientists studied were called _____ compounds because they came from
living organisms.
a. water
c. homogeneous
b. organic
d. biological
____ 15. Lipids have a larger portion of the elements ___ and ___ compared to the element ___.
a. C, O, H
c. C, H, O
b. O, H, C
d. H, O, C
____ 16. _______ helps with contracting muscles.
a. lipids
b. proteins
c. carbohydrates
d. nucleic acids
____ 17. The place where the enzyme and substrate fit together is called
a. active site
c. product
b. inactive site
d. substrate
____ 18. When an enzyme becomes denatured
a. the substrate will fit into the enzyme and cause a reaction
b. the substrate will not fit into the enzyme and cause a reaction
c. the substrate will fit into the enzyme and not cause a reaction
d. the substrate will not fit into the enzyme and not cause a reaction
____ 19. When the substrate fits into the enzyme they mold together to start a reaction and then form a product. This is
called
a. lock and key model
c. fluid mosaic model
b. induced fit model
d. none of these
____ 20. A substance with a pH of 4 is called
a. an acid
b. a base
c. both an acid and a base
d. neither an acid nor a base
____ 21. A monosaccharide is a
a. carbohydrate
b. lipid
c. nucleic acid
d. protein
____ 22. When hydrogen and oxygen combine to form water, water would be
a. a product
c. both a product and a reactant
b. a reactant
d. neither a product nor a reactant
____ 23. Enzymes affect the reactions in living cells by changing the
a. products of the reaction.
c. temperature of the reaction.
b. speed of the reaction.
d. pH of the reaction.
____ 24. Which of the following organic compounds is the main source of energy for living things?
a. carbohydrates
c. nucleic acids
b. lipids
d. proteins
____ 25. What is the process that changes one set of chemicals into another set of chemicals?
a. cohesion
c. chemical reaction
b. adhesion
d. dissolving
____ 26. What is the term used to describe the energy needed to get a reaction started?
a. adhesion energy
c. cohesion energy
b. activation energy
d. chemical energy
____ 27. A substance that speeds up the rate of a chemical reaction is called a(an)
a. catalyst
c. molecule
b. lipid
d. element
____ 28. A solution with a pH of 11 is
a. acidic
b. basic
c. neutral
d. neutral
____ 29. In humans and other multicellular organisms, which substance plays a central role as an energy source?
a. carbohydrate
c. protein
b. fat
d. water
____ 30. Glycogen, used to store energy in the liver and muscle tissue, is an example of which type of molecule?
a. carbohydrate
c. saturated fatty acid
b. protein
d. steroid
____ 31. An organism’s genetic informaiton is stored in which type of macromolecule?
a. DNA
c. lipid
b. carbohydrate
d. protein
____ 32. Which of the following is NOT a function of proteins?
a. store and transmit heredity
b. help to fight disease
c. control the rate of reactions and regulate cell processes
d. used to form bones and muscles
Accelerated Biology Test: Ch 2, 7
Answer Section
MULTIPLE CHOICE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
D
B
A
B
D
A
A
D
D
B
B
A
C
B
C
B
A
D
B
A
A
A
B
A
C
B
A
B
A
A
A
A
PTS:
PTS:
PTS:
PTS:
1
1
1
1
DIF:
DIF:
DIF:
DIF:
I
II
III
I
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
1
1
1
1
1
1
1
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
Easy
Difficult
II
I
Moderate
III
III
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
1
1
1
1
1
1
1
1
1
1
REF: p. 51
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
1
1
1
1
1
1
DIF: Easy
DIF: Easy
OBJ:
OBJ:
OBJ:
OBJ:
3.3.2
3.3.3
3.3.4
3.3.5
OBJ: 3.4.2
OBJ: 3.4.3
OBJ: 3.4.2
OBJ: 3.4.3