Nucleic Acids, Proteins, and Enzymes Quiz

Which of the following is not a function of proteins?

• Hormones

• Transport materials

• Energy storage

• Control the rate of reactions

Which element is present in nucleic acids but not in proteins?

• Hydrogen

• Carbon

• Phosphorous

• Nitrogen

How many amino acids exist in nature?

• 26

• 24

• 32

• 20

What is the monomer for proteins?

• RNA

• DNA

• Nucleotide

• Amino Acid

Which part makes each amino acid different from one another?

• Central carbon

• Carboxyl group

• R group

• Carbon Chain Length

What is the monomer for nucleic acids?

• DNA

• Amino acid

• RNA

• Nucleotide

Which of the following bases is found in DNA but not in RNA?

• Adenine

• Cytosine

• Guanine

• Thymine

Which polymer codes for proteins?

• Nucleotide

• DNA

• RNA

• Amino Acid

Which of the following is not a difference between DNA and RNA?

• The number of strands making up the molecule

• The four bases that can be present in a nucleotide

• The phosphate group present in each nucleotide

• The type of sugar present in each nucleotide

Enzymes influence chemical reactions in living systems by

• Absorbing water released during dehydration synthesis

• Changing the number of protons

• Providing the substrate for a reaction to occur

• Lowering the activation energy of a reaction