1. Macromolecules are polymers built from monomers. 2. The building block of protein is amino acid. 3. Cellulose is an example of polysaccharide. 4. Chitin is an example of a disac... 1. Macromolecules are polymers built from monomers. 2. The building block of protein is amino acid. 3. Cellulose is an example of polysaccharide. 4. Chitin is an example of a disaccharide. 5. Nucleotide is the building block of nucleic acid. 6. DNA is a nucleic acid. 7. Lipids are composed of triglycerides. 8. Steroids are examples of fats. 9. RNA has ribose sugar only. 10. DNA has double-stranded helix. 11. Primary protein is stabilized by hydrogen bond. 12. Secondary protein is stabilized by peptide bond. 13. Hemoglobin is an example of transport proteins. 14. Insulin is an example of hormonal proteins. 15. Amino acid is the building block of proteins. 16. Nucleotide is the building block of carbohydrates. 17. Thymine is present only in RNA. 18. Uracil is present only in DNA. 19. Lactose is a combination of glucose and fructose. 20. Sucrose is a combination of glucose and galactose. Read more

Understand the Problem

The question appears to be part of a quiz or assessment concerning biological macromolecules and their components. It includes true/false statements and questions about the structure of carbohydrates, proteins, nucleic acids, and lipids.

More Information

Chitin is a polysaccharide, not a disaccharide. Peptide bonds stabilize primary protein structure, while hydrogen bonds stabilize secondary protein structure. Thymine is present in DNA, not RNA. Uracil is present in RNA, not DNA. Lactose is made from glucose and galactose, and sucrose is made from glucose and fructose.

Tips

A common mistake is confusing the structures and types of biomolecules, such as disaccharides and polysaccharides, or the components of nucleic acids.

Sources

• 2.3 Biological Molecules – Concepts of Biology – 1st Canadian Edition - opentextbc.ca
• 2.1: Biological Molecules - Biology LibreTexts - bio.libretexts.org