Lesson 4: The Building Blocks of Life

Multiple Choice

Which element is considered essential for life on Earth because it is part of almost all biological molecules?

• Carbon

• Oxygen

• Nitrogen

• Hydrogen

Open Ended

Explain the relationship between monomers and polymers in the formation of macromolecules.

Multiple Choice

Which of the following is a monosaccharide?

• Glucose

• Sucrose

• Starch

• Lactose

Multiple Select

Which of the following are examples of disaccharides?

• Lactose

• Sucrose

• Glucose

• Maltose

Multiple Choice

Which of the following is the building block of proteins?

• Amino acid

• Monosaccharide

• Nucleotide

• Glycerol

Open Ended

Explain the two main functions of proteins in cells as described in the slides.

Multiple Choice

Which of the following correctly matches the protein structure level with its description?

• Primary structure: sequence of amino acids in a polypeptide chain

• Secondary structure: combining with other proteins

• Tertiary structure: sequence of amino acids

• Quaternary structure: hydrogen bonds between parts of the polypeptide