Which of the following is true about a polar amino acid and cellulose?
A. Both are polysaccharides.
B. Both contain nitrogen.
C. Both are hydrophobic.
D. Both contain hydrogen atoms.
The answer is D. Amino acid can form protein not polysaccharides. Cellulose is polysaccharides and contains only C, O, H. Polar amino acid is hydrophilic not hydrophobic because of its structure. Both amino acid and cellulose contain hydrogen atoms.