Nitrogenous Bases and Nucleotides Quiz

What are the two classes of nitrogenous bases?

• Sugars and Phosphates

• Purines and Pyrimidines

• Acids and Bases

• Proteins and Carbohydrates

How many rings does a pyrimidine have?

• 1 ring

• 2 rings

• 3 rings

• 4 rings

Which sugar is a component of nucleotides?

• Glucose

• D-ribose

• Fructose

• Sucrose

What does the suffix "ine" in pyrimidine change to when naming nucleotides?

• -ose

• -ase

• -dine

• -ine

Which of the following is a purine?

• Uracil

• Thymine

• Adenine

• Cytosine

What are the three components of nucleotides?

• A 5 carbon sugar, a nucleobase, and one or more phosphate groups

• A 6 carbon sugar, a nucleobase, and one or more phosphate groups

• A 5 carbon sugar, a nucleobase, and no phosphate groups

• A 6 carbon sugar, a nucleobase, and no phosphate groups

What is the role of ATP and ADP in cells?

• They store and release energy to the cells and tissues

• They store and release water to the cells and tissues

• They store and release oxygen to the cells and tissues

• They store and release carbon dioxide to the cells and tissues

What holds the DNA double helix together?

• Hydrogen bonds

• Oxygen bonds

• Carbon bonds

• Nitrogen bonds

What is the ratio of DNA and RNA bases?

• 1:1

• 2:1

• 3:1

• 4:1