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Which one of the following statements is wrong?

1. Sucrose is a disaccharide.
2. Cellulose is a polysaccharide.
3. Uracil is a pyrimidine.
4. Glycine is a sulphur containing amino acid.

Correct answer: Glycine is a sulphur containing amino acid.

Solution

Glycine is the simplest amino acid and its side chain is just hydrogen, so it contains no sulfur. The other statements are correct: sucrose is a disaccharide, cellulose is a polysaccharide, and uracil is a pyrimidine.

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