Biomolecules (Updated 2023)

The video explores the four main classes of biomolecules: carbohydrates, lipids, proteins, and nucleic acids. It explains their monomers, functions, and importance to cells and organisms. Carbohydrates provide quick energy and structural support, lipids offer long-term energy storage and insulation, proteins are crucial for structure and function, and nucleic acids store genetic information. The video concludes with a mnemonic to remember the elements in these biomolecules.

What is a monomer in the context of biomolecules?

• A building block of larger molecules

• A type of carbohydrate

• A large molecule

• A type of lipid

Which of the following is a monomer of carbohydrates?

• Amino acid

• Monosaccharide

• Nucleotide

• Fatty acid

What is the primary function of carbohydrates in cells?

• Long-term energy storage

• Insulation

• Fast source of energy

• Hormone production

Which characteristic is common among most lipids?

• They are hydrophobic

• They dissolve in water

• They are made of amino acids

• They are hydrophilic

What is a major role of lipids in cells?

• Coding genetic information

• Providing structural support

• Acting as enzymes

• Forming cell membranes

What is the monomer of proteins?

• Amino acid

• Nucleotide

• Monosaccharide

• Fatty acid

Which biomolecule is responsible for storing genetic information?

• Proteins

• Nucleic acids

• Lipids

• Carbohydrates