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CHEM 120 Final Exam Practice Questions
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CHEM 120 Final Exam Practice Questions
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CHEM 120 Final Exam PracticeQuestions
, CHEM 120 Final Exam Practice Questions
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=CHCOOH
CH3CH=CHCH=CHCOOH
CH3CH2CH2CH2CH2COOH
CH3CH2CH2CH2CH2CH=CHCOOH
CH3CH=CHCH2CH=CHCOOH
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.
5. Question: (TCO 12) Which of the following is a disaccharide? (Pts. : 5)
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