CHEM 120 Final Exam Practice Questions
and Answers
1. Question: (TCO 12) The DNA double helix is . (Pts. : 5)
made up of two
polynucleotide strands
composed of adenine and
thymine
a puzzle to geneticists
composed of adenine
and guanine composed
of two chromosomes
2. Question: (TCO 12) Which of the following best describes the action
of enzymes in living systems? A specific enzyme generally catalyzes (Pts. : 5)
one specific reaction.
a group of similar
reactions. many
different reactions.
either one specific reaction or a group of
similar reactions. random reactions.
3. Question: (TCO 12) Which of the following is not an unsaturated fatty
acid? (Pts. : 5)
CH3CH2CH2CH=CHCOO
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, H
CH3CH=CHCH=CHCOO
H
CH3CH2CH2CH2CH2COO
H
CH3CH2CH2CH2CH2CH=
CHCOOH
CH3CH=CHCH2CH=CH
COOH
4. Question: (TCO 12) The primary structure of a protein is determined by
(Pts. : 5)
the amino-acid composition.
the order of amino acids in the protein.
the hydrogen bonding that gives the protein a
three-dimensional shape. the intertwining of
protein molecules to form a “functional” protein.
the hydrogen bonds between sulfur atoms on
different amino acids.
This study source was downloaded by 100000848900824 from CourseHero.com on 08-27-2023 06:41:04 GMT -05:00
https://www.coursehero.com/file/153904738/CHEM-120-FINAL-EXAM-PRACTICE-QUESTIONSdocx/
and Answers
1. Question: (TCO 12) The DNA double helix is . (Pts. : 5)
made up of two
polynucleotide strands
composed of adenine and
thymine
a puzzle to geneticists
composed of adenine
and guanine composed
of two chromosomes
2. Question: (TCO 12) Which of the following best describes the action
of enzymes in living systems? A specific enzyme generally catalyzes (Pts. : 5)
one specific reaction.
a group of similar
reactions. many
different reactions.
either one specific reaction or a group of
similar reactions. random reactions.
3. Question: (TCO 12) Which of the following is not an unsaturated fatty
acid? (Pts. : 5)
CH3CH2CH2CH=CHCOO
This study source was downloaded by 100000848900824 from CourseHero.com on 08-27-2023 06:41:04 GMT -05:00
https://www.coursehero.com/file/153904738/CHEM-120-FINAL-EXAM-PRACTICE-QUESTIONSdocx/
, H
CH3CH=CHCH=CHCOO
H
CH3CH2CH2CH2CH2COO
H
CH3CH2CH2CH2CH2CH=
CHCOOH
CH3CH=CHCH2CH=CH
COOH
4. Question: (TCO 12) The primary structure of a protein is determined by
(Pts. : 5)
the amino-acid composition.
the order of amino acids in the protein.
the hydrogen bonding that gives the protein a
three-dimensional shape. the intertwining of
protein molecules to form a “functional” protein.
the hydrogen bonds between sulfur atoms on
different amino acids.
This study source was downloaded by 100000848900824 from CourseHero.com on 08-27-2023 06:41:04 GMT -05:00
https://www.coursehero.com/file/153904738/CHEM-120-FINAL-EXAM-PRACTICE-QUESTIONSdocx/
