Macromolecules Review

Which macromolecule is the main source of energy for living organisms?

• nucleic acids

• carbohydrates

• lipids

• proteins

What is the monomer unit of carbohydrates?

• polysaccharide

• disaccharide

• protein

• monosaccharide

Which macromolecule is composed of carbon, hydrogen, and oxygen in a 1:2:1 ratio?

• lipids

• carbohydrates

• proteins

• nucleic acids

What is the function of lipids in the body?

• Lipids serve as a source of energy, insulation, and protection for organs in the body.

• Lipids aid in the production of hormones and cell membranes.

• Lipids help in muscle contraction and movement in the body.

• Lipids assist in the transportation of oxygen in the body.

Which macromolecule is responsible for storing and transmitting genetic information?

• RNA

• Protein

• DNA

• Carbohydrate

What is the monomer unit of proteins?

• amino acids

• lipids

• carbohydrates

• nucleotides

What is the primary function of proteins in the body?

• Proteins play a role in maintaining the body's pH balance and fluid balance.

• Proteins help regulate the body's metabolism and energy production.

• Proteins serve as building blocks for cells, tissues, and organs.

• Proteins are responsible for storing and transmitting genetic information.

Which macromolecule is insoluble in water?

• Lipids

• Carbohydrates

• Proteins

• Nucleic acids

What is the monomer unit of nucleic acids?

• lipid

• carbohydrate

• nucleotide

• amino acid

What is the function of nucleic acids in the body?

• Store and transmit genetic information

• Facilitate muscle contraction.

• Regulate body temperature.

• Serve as a source of energy in the body.