Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by 

1. base-sugar-phosphate
2. base-sugar-OH
3.
4. sugar-phosphate

Subtopic:  Nucleic Acid: Nucleotides |
 69%
Level 2: 60%+
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The number of high energy bonds in a molecule of ATP is:

1. 1 2. 2
3. 3 4. 4
Subtopic:  Nucleic Acid: Nucleotides |
 53%
Level 3: 35%-60%
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