s s al.) Chapter
s s s s 1 Biochemistry
s s s s and s s the s s Language
s s of s s Chemistry
1) The s s s s water s s s s content s s s s in s s s s the s s s s human s s s s body s s is s s s s approximately:
A) 90%.
B) 80%.
C) 70%.
D) 60%.
E) 50%.
Answer: C
2) The s s four s s most s s abundant s s s s chemical s s s s elements s s s s in s s s s living s s systems s s s s are:
A) hydrogen, s s oxygen, s s s s sulfur s s s s and s s s s phosphorus.
B) hydrogen, s s carbon, s s s s nitrogen s s and s s s s oxygen.
C) sodium, s s potassium, s s s s carbon s s s s and s s s s oxygen.
D) sodium, s s potassium, s s nitrogen s s s s and s s s s sulfur.
E) carbon, nitrogen, s s
s s oxygen and potassium.ss ss
Answer: B s s
Objective: 1.2
3) Nearly s s all s s s s proteins s s s s contain:
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, A) cobalt.
B) phosphorus.
C) selenium.
D) sulfur.
E) none of the s s s s
ss above.
Answer: D
Objective: 1.2
ss
ss Global LO: s s s s G7
4) Which s s s s of s s the s s s s following s s s s statements s s s s is s s s s FALSE?
A) Proteins s s can s s s s be s s structural s s s s components s s s s of s s cells.
B) Proteins s s can s s transmit s s signals s s s s between s s s s cells.
C) Proteins s s can s s transport s s molecules s s s s within s s s s cells s s and s s s s between s s s s cells.
D) Proteins s s can s s s s be s s both s s s s hormones s s s s and s s s s hormone s s receptors.
E) Proteins are the only biological polymer that
s s s s s s s s s s s s s s can
s s catalyze s s biochemical reactions. ss
Answer: E s s
Objective: 1.2 ss
ss Global LO: s s
ss G7
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, 5) Which s s of s s the s s s s following s s s s is s s s s NOT s s classed s s s s as s s s s a s s s s lipid?
A) Cholesterol
B) Palmitic s s acid
C) Glycerol
D) Phosphatidyl s s serine
E) Triacylglycerol
Answer: C
ss s s
ss Objective: 1.2 s s
ss Global LO: s s
G7
6) Amino s s acids s s and s s simple s s organic s s compounds s s like s s carbon s s dioxide
s s and s s hydrogen cyanide cannotbe ss ss s s produced s s without s s the s s use s s of
s s enzymes.
Answer: FALSE s s
ss Objective: 1.2 s s
ss Global LO: s s s s G7
7) Oxidation-reduction s s reactions, s s which s s are s s the s s basis s s of
s s many biochemical reactions
ss ss s s andpathways, s s cannot s s take s s place in s s
s s the s s absence s s of oxygen.ss
ss Answer: FALSE s s
Objective: 1.2 s s
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