Question

the models show the chemical structures of a monosaccharide and a nucleotide. complete the table to compare these structures.

	monosaccharide	nucleotide
contains hydrogen
has a phosphate group

Explanation:

Step1: Recall DNA building - blocks

DNA is made up of nucleotides, not monosaccharides. So for "Is a building block of DNA", monosaccharide is no and nucleotide is yes.

Step2: Analyze hydrogen presence

Both monosaccharides and nucleotides contain hydrogen atoms as seen in their structures. So for "Contains hydrogen", both are yes.

Step3: Check for phosphate - group

Monosaccharides do not have a phosphate group. Nucleotides have a phosphate group as part of their structure. So for "Has a phosphate group", monosaccharide is no and nucleotide is yes.

Answer:

Monosaccharide	Nucleotide
Yes	Yes
No	Yes