NGSQ 1

Which building blocks (monomer) are correctly matched to the macromolecule they form?

• Amino acids make proteins.

• Glucose molecules make lipids.

• Nucleotides make carbohydrates

• Fatty acid chains make nucleic acids.

Which of the following statements illustrates why carbon atoms are so important in living organisms?

• Carbon atoms contain large stores of energy

• Carbon is found in most inorganic compounds

• Carbon atoms are polar which allows them to dissolve many compounds

• Carbon is able to bond to many other atoms to form large and complex molecules.

Which of the following groups of macromolecules are composed of three fatty acid chains bonded to a glycerol?

• lipids

• proteins

• nucleic acids

• . carbohydrates

Use the figure below to answer the following question. Which of the following structures is circled and labeled X in the figure above?

• nucleotide

• amino acid

• nucleic acid

• DNA molecule

The diagram below shows three repeating units of a polymer. Which of the following molecular structures make up the repeating units shown in the diagram?

• fatty acid

• nucleotide

• amino acid

• monosaccharide

Which group of macromolecules is responsible for transferring genetic information to new cells?

• lipids

• proteins

• nucleic acids

• carbohydrates