The cuticle is an example of:
Correct answer: B. Waxes
- A. Acylglycerols
- B. Waxes
- C. Phospholipids
- D. Terpenoids
Explanation
Option B is correct. Cuticle is an example of waxes.The cuticle is an example of a protective layer. It is a thin, waxy layer that covers the outside of plants, animals, and some fungi. The cuticle helps to protect the underlying tissues from water loss, infection, and mechanical damage. In plants, the cuticle is made up of cutin, a polymer of fatty acids. Cutin is a very hydrophobic molecule, which means that it repels water. This helps to prevent water loss from the plant's leaves and other exposed tissues. The cuticle also helps to protect the plant from infection by pathogens.
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The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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