Macromolecules Quiz

The macromolecule responsible for storing and transmitting genetic information is _____.

• RNA

• Carbohydrate

• Protein

• DNA

The building blocks of proteins are _____.

• nucleic acids

• lipids

• carbohydrates

• amino acids

The macromolecule that is composed of nucleotides is _____.

• DNA

• Protein

• Carbohydrate

• Lipid

The function of enzymes in biological systems is _____.

• Enzymes regulate the pH level in biological systems.

• Enzymes act as catalysts in biological systems.

• Enzymes provide structural support in biological systems.

• Enzymes store and release energy in biological systems.

The role of DNA in protein synthesis is _____.

• DNA provides the instructions for protein synthesis.

• DNA determines the shape and structure of proteins.

• DNA acts as a catalyst in protein synthesis.

• DNA transports proteins to the ribosomes for synthesis.

The difference between DNA and RNA is that _____.

• DNA contains uracil, while RNA contains thymine.

• DNA is single-stranded, while RNA is double-stranded.

• DNA is found only in eukaryotic cells, while RNA is found in both prokaryotic and eukaryotic cells.

• DNA is double-stranded, while RNA is single-stranded.

The function of ribosomes in protein synthesis is _____.

• DNA replication

• Lipid synthesis

• Protein synthesis

• Cellular respiration

All of the unique amino acids differ by:

• Carboxyl group

• R group

• Amine group

• Shape

A nucleotide consists of a sugar molecule, a phosphate group, and a _____.

• protein

• phosphate group

• lipid

• nitrogenous base

The primary structure of a protein is _____.

• Three-dimensional structure of amino acids.

• Secondary structure of amino acids.

• Linear sequence of amino acids

• Quaternary structure of amino acids.