The main constituents of cell walls in plants, algae, fungi and eukaryotic microorganisms are:
Correct answer: A. Carbohydrates
- A. Carbohydrates
- B. Proteins
- C. Lipids
- D. Nucleic acids
Explanation
Cellulose, hemicellulose and pectins are the main components of the cell wall of plants and algae, whereas chitin is the main component of the cell wall of fungi. All of them are polysaccharide carbohydrates.
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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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