Nucleotides and Water Properties Quiz

Which components make up a nucleotide?

• Pentose sugar, phosphate group, nitrogenous base

• Deoxyribose sugar, fatty acid, nitrogenous base

• Ribose sugar, carboxyl group, nitrogenous base

• Pentose sugar, fatty acid, nitrogenous base

What type of bond is formed between nucleotides in a DNA strand?

• Ionic bond

• Peptide bond

• Phosphodiester bond

• Hydrogen bond

Which nitrogenous base is found in RNA but not DNA?

• Adenine

• Guanine

• Uracil

• Thymine

How many hydrogen bonds form between adenine and thymine in DNA?

• One

• Two

• Three

• Four

What is the role of ATP in cells?

• Long-term energy storage

• Providing an immediate source of energy

• Building cell membranes

• Transporting oxygen

Which component of water allows it to act as a solvent?

• High specific heat capacity

• Cohesive properties

• Its polarity

• Its density

What is the specific term for the attraction between water molecules?

• Adhesion

• Surface tension

• Cohesion

• Osmosis

What property of water helps it buffer changes in temperature?

• Its polarity

• High latent heat of vaporization

• High specific heat capacity

• Cohesion

Which inorganic ion is essential for the transport of oxygen in blood?

• Fe²⁺

• Na⁺

• Ca²⁺

• K⁺

Which inorganic ion is involved in the synthesis of ATP?

• Na⁺

• Cl⁻

• PO₄³⁻ (phosphate)

• Ca²⁺