Biomolecules and Their Functions

The video provides an overview of the four major biomolecules: carbohydrates, proteins, nucleic acids, and lipids. It explains their monomeric units, bonds, examples, elements involved, and functions. Carbohydrates are energy sources and structural components. Proteins, made of amino acids, serve diverse functions like enzymes and hormones. Nucleic acids, DNA and RNA, store genetic information. Lipids, composed of fatty acids and glycerol, are energy reserves and form biological membranes.

Which of the following is NOT one of the four major biomolecules?

• Carbohydrates

• Proteins

• Vitamins

• Nucleic Acids

What is the primary function of carbohydrates in living organisms?

• Genetic information storage

• Short-term energy source

• Long-term energy storage

• Structural support in cell membranes

Which bond connects the monomeric units of carbohydrates?

• Glycosidic bond

• Peptide bond

• Phosphodiester bond

• Ester bond

Proteins are made up of which monomeric units?

• Fatty acids

• Amino acids

• Monosaccharides

• Nucleotides

Which of the following is a function of proteins?

• Genetic information storage

• Energy storage

• Insulation

• Enzymatic activity

What type of bond links nucleotides in nucleic acids?

• Glycosidic bond

• Phosphodiester bond

• Peptide bond

• Ester bond

Which nucleic acid is typically double-stranded?

• tRNA

• DNA

• RNA

• mRNA

Lipids are primarily composed of which elements?

• Carbon, oxygen, and sulfur

• Carbon, hydrogen, and nitrogen

• Carbon, hydrogen, and oxygen

• Carbon, nitrogen, and phosphorus

What is the main role of lipids in animals?

• Enzymatic activity

• Long-term energy storage

• Genetic information storage

• Short-term energy source

Which of the following is NOT a function of lipids?

• Hormone production

• Membrane structure

• Genetic information storage

• Insulation