Which is true of nucleotides?
A) They are the building blocks of DNA.
B) They carry chemical energy in their bonds.
C) They are part of certain enzymes.
D) They serve as specific signaling molecules.
E) All of the choices are true.
Correct Answer:
Verified
Q43: A protein
A)assumes any number of equally functional
Q44: The most important molecule(s)in the world is(are)
A)water.
B)protein.
C)carbohydrates.
D)nucleic
Q45: Side chains are important to proteins because
Q46: The characteristic common to all lipids is
Q47: The purines of DNA are
A)adenine and guanine.
B)thymine
Q49: Which is (are)true of lipids?
A)They are a
Q50: L-amino acids occur in proteins and are
Q51: Dehydration reactions are involved in
A)the formation of
Q52: The end of the nucleic acid chain
Q53: The -OH group in a carbohydrate
A)may be
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